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Showing papers on "Stub (electronics) published in 1993"


Journal ArticleDOI
TL;DR: In this paper, the authors investigate the parasitic effects of MMIC stub configurations in terms of the effective length extension l/sub ext///ext// ext/, and the influence of different line parameters is discussed.
Abstract: Coplanar MMIC stub configurations are investigated by means of the finite-difference method in the frequency domain. The open end, the short end, and a capacitively loaded short end (MIM-short) are analyzed. Their parasitic effects are described in terms of the effective length extension l/sub ext/. The influence of the different line parameters is discussed and simple design rules are given. >

65 citations


Patent
03 Aug 1993
TL;DR: In this paper, a U-shaped resilient element having round holes disposed thereon mounting on a stub with the two end portions extending into the grooves situated on the sides of the stub is transversely arranged a hole that provides rooms for a spring and a locating plunger.
Abstract: The invention relates to a securing means for the telescopic stick of a multiple-fold umbrella, mainly comprising a U-shaped resilient element having round holes disposed thereon mounting on a stub with the two end portions extending into the grooves situated on the sides of the stub. On the stub is transversely arranged a hole that provides rooms for a spring and a locating plunger. The stub, integrated with the spring and the plunger, is placed into an inner tube where the stub, in conjunction with detent balls and positioning holes on the peripheral walls of the inner and the outer tubes, can provide stable, reliable latching and positioning functions for telescopic tubes as the umbrella is opened.

58 citations


Patent
10 Aug 1993
TL;DR: In this paper, a dielectric material is formed into a structure having two parallel broad surfaces with one or more raised integral portions extending transversely across at least one of the broad surfaces.
Abstract: A dielectric material is formed into a structure having two parallel broad surfaces with one or more raised integral portions extending transversely across at least one of the broad surfaces. The exterior is uniformly conductively coated resulting in a parallel plate waveguide having a continuous transverse stub element disposed adjacent one plate thereof. Purely reactive elements are formed by leaving the conductive coating on the terminus of the stub element, or by narrowing the terminus of the stub element. Radiating elements are formed when stub elements of moderate height are opened to free space. Radiating, coupling and/or reactive continuous transverse stub elements may be combined in a common parallel plate structure in order to form a variety of microwave, millimeter wave and quasi-optical components including integrated filters, couplers and antenna arrays. Fabrication of the dielectrically-loaded continuous transverse stub element can be efficiently accomplished by machining, extruding or molding the dielectric structure, followed by uniform conductive plating in order to form the parallel plate transmission line. In the case of antenna applications, machining or grinding is performed on the stub terminus to expose the dielectric material at the end of the stub element.

54 citations


Patent
10 Aug 1993
TL;DR: In this paper, a dielectric material is formed into a structure having two parallel broad surfaces with one or more raised integral portions extending transversely across at least one of the broad surfaces.
Abstract: A dielectric material is formed into a structure having two parallel broad surfaces with one or more raised integral portions extending transversely across at least one of the broad surfaces. The exterior is uniformly conductively coated resulting in a parallel plate waveguide having a continuous transverse stub element disposed adjacent one plate thereof. Purely reactive elements are formed by leaving the conductive coating on the terminus of the stub element, or by narrowing the terminus of the stub element. Radiating elements are formed when stub elements of moderate height are opened to free space. Radiating, coupling and/or reactive continuous transverse stub elements may be combined in a common parallel plate structure in order to form a variety of microwave, millimeter wave and quasi-optical components including integrated filters, couplers and antenna arrays. Fabrication of the dielectrically-loaded continuous transverse stub element can be efficiently accomplished by machining, extruding or molding the dielectric structure, followed by uniform conductive plating in order to form the parallel plate transmission line. In the case of antenna applications, machining or grinding is performed on the stub terminus to expose the dielectric material at the end of the stub element.

42 citations


Patent
24 Nov 1993
TL;DR: In this paper, an end fire antennae that operates over broad frequency bands with a boosted gain at a preferred frequency, that can be incorporated into arrays, and that have low RF cross-sections are constructed from a transmission line, usually a piece of coaxial cable that if it is not self supporting, is mounted on or in a lightweight structural material with an outer end with a sheath or stripline the shape of half of a notch.
Abstract: Resonant, end fire antennae that operate over broad frequency bands with a boosted gain at a preferred frequency, that can be incorporated into arrays, and that have low RF cross-sections are constructed from a transmission line, usually a piece of coaxial cable that if it is not self supporting, is mounted on or in a lightweight structural material with an outer end with a sheath or stripline the shape of half of a notch. The other half of the notch is formed from a conductor electrically connected to the center conductor of the coaxial cable. The cable and conductor are variably spaced to transition the characteristic impedance of the cable to that of free space. The transmission line and the conductor each have a quarter wavelength tuning stub connected thereto to boost the gain of the antenna at a predetermined frequency. The conductor and the sheath are terminated either with ground connections or by inductive loads.

40 citations


Patent
27 Dec 1993
TL;DR: In this article, a microwave parallel coupled line filters with direct taps having improved rejection of undesired signals near the pass-band are disclosed, which involves shifting the transmission zeros by changing the position of the direct taps along the resonator or changing the impedance of the open-circuited stub associated with each tap.
Abstract: Microwave parallel coupled line filters with direct taps having improved rejection of undesired signals near the pass-band are disclosed. Improved rejection is achieved by controlling the transmission zeros created by the input and output direct taps. Performance is comparable to parallel coupled line filters having substantially more coupling sections. The method involves shifting the transmission zeros by changing the position of the direct taps along the resonator or changing the impedance of the open-circuited stub associated with each tap. Impedance transformers can be used to match back to the source and load impedances.

32 citations


Patent
21 Sep 1993
TL;DR: In this paper, an adjustable microwave power divider circuit (50) is proposed to adjust the power division ratio after the device has been fabricated, by adjusting the open stub length and the characteristic impedance level between the two power division networks.
Abstract: An adjustable microwave power divider circuit (50), providing the capability of adjusting the power division ratio after the device has been fabricated. The device includes three 90 degree transmission line networks (60, 70, 80) incorporating open transmission line stubs (66, 76, 86), two networks (70, 80) as power division networks, and the third network (60) as an input impedance matching network. A series isolation resistor (90) is connected across the outputs of the power division networks. In operation, an input signal is split between the two power division networks (70, 80) with equal voltage and phase. The power split between the two outputs is adjusted by adjusting the open stub length, thereby varying the characteristic impedance level between the two power division networks. Any signal reflected back into any one of the power divider networks is absorbed by the isolation resistor. The stub length can be trimmed after device fabrication using a laser or abrasion system.

31 citations


Patent
18 Oct 1993
TL;DR: In this paper, a dielectric material is formed into a structure having two parallel broad surfaces with one or more raised integral portions extending transversely across at least one of the broad surfaces.
Abstract: A dielectric material is formed into a structure having two parallel broad surfaces with one or more raised integral portions extending transversely across at least one of the broad surfaces. The exterior is uniformly conductively coated resulting in a parallel plate waveguide having a continuous transverse stub element disposed adjacent one plate thereof. Purely reactive elements are formed by leaving the conductive coating on the terminus of the stub element, or by narrowing the terminus of the stub element. Radiating elements are formed when stub elements of moderate height are opened to free space. Radiating, coupling and/or reactive continuous transverse stub elements may be combined in a common parallel plate structure in order to form a variety of microwave, millimeter wave and quasi-optical components including integrated filters, couplers and antenna arrays. Fabrication of the dielectrically-loaded continuous transverse stub element can be efficiently accomplished by machining, extruding or molding the dielectric structure, followed by uniform conductive plating in order to form the parallel plate transmission line. In the case of antenna applications, machining or grinding is performed on the stub terminus to expose the dielectric material at the end of the stub element.

30 citations


Patent
16 Apr 1993
TL;DR: In this article, a laminated high-frequency low-pass filter includes a first dielectric layer, an earth electrode, a shield electrode, and a strip line electrode.
Abstract: A laminated high-frequency low-pass filter includes a first dielectric layer. A second dielectric layer, a third dielectric layer, a fourth dielectric layer, and a fifth dielectric layer are laminated on the first dielectric layer. An earth electrode is formed on the first dielectric layer. A first capacitive open-circuited stub electrode, a second capacitive open-circuited stub electrode and a third capacitive open-circuited stub electrode are formed on the second dielectric layer. A first strip line electrode and a second strip line electrode are formed on the third dielectric layer. The first and second strip line electrodes are formed as meander lines. A shield electrode is formed on the fourth dielectric layer.

28 citations


Patent
15 Apr 1993
TL;DR: In this article, the outer handle of a door lock includes a tube extended inward of the door, a lock disposed in the tube, a stub fixed on one end of a shaft and having a square section and a circular section, a cylinder rotatably received in a tube and coupled to the lock and including two pairs of notches of different depth, a board engaged with either of the sections.
Abstract: An outer handle of a door lock includes a tube extended inward of the door, a lock disposed in the tube, a stub fixed on one end of a shaft and having a square section and a circular section, a cylinder rotatably received in the tube and coupled to the lock and including two pairs of notches of different depth, a board engaged with either of the sections. The shaft can be rotated by the outer handle when the board is engaged with the square section of the stub and can not be rotated when the board is engaged with the circular section. The stub can be rotated by the shaft when the board is engaged with either of the sections.

25 citations


Patent
30 Nov 1993
TL;DR: In this paper, a matched load for a microwave dryer having a microwave generator and a microwave applicator is presented, where the matched load includes a waveguide having opposed broad walls, opposed narrow walls, and an end wall defining the waveguide chamber.
Abstract: A matched or dummy load for a microwave dryer having a microwave generator and a microwave applicator. The matched load includes a waveguide having opposed broad walls, opposed narrow walls, and an end wall defining a waveguide chamber. A power absorbing body made of sintered silicon carbide, casted silicon carbide, or other materials is disposed in the waveguide chamber. One or more of the walls includes means for transferring heat from the power absorbing body. A housing or shroud having an inlet and an outlet surrounds the waveguide. The means for removing heat is disposed between the inlet and outlet of the housing so that a cooling medium passed through the housing removes heat from the power absorbing body. A tuning stub is placed in front of the power absorbing body to reduce microwave reflections.

Proceedings ArticleDOI
01 Sep 1993
TL;DR: In this paper, a hybrid uniplanar structure for low pass and bandpass filters was proposed and a compact topology of a quasi lumped element low pass filter has been designed and tested.
Abstract: A new design procedure of low pass and bandpass filters using hybrid uniplanar structures is presented. A compact topology of a quasi lumped element low pass filter has been designed and tested. For this circuit, a high rejection level of the spurious responses is obtained: a very sharp slope response above the cut-off frequency (3 GHZ) and an attenuation lower than 20 dB up to 15 GHz are observed. A broadband bandpass filter has also been investigated using series and shunt stub elements. A flat insertion response with a maximum attenuation of 0.6 dB and ?15 dB return losses are observed in a Large frequency range.

Patent
17 Sep 1993
TL;DR: In this paper, the instant-on microwave oscillator circuit includes a conductive transmission line having an impedance Z O with a corresponding ground plane; and a pair of output terminals connected one on each of the transmission line and the ground plane.
Abstract: A microwave oscillator capable of being switched into or out of the oscillating state within a fraction of the period of oscillation. The instant-on microwave oscillator permits both the generation and modulation of a microwave signal by using a single active microwave semiconductor device which is a resonant tunneling diode. The instant-on microwave oscillator circuit includes a conductive transmission line having an impedance Z O with a corresponding ground plane; and a pair of output terminals connected one on each of the transmission line and the ground plane. An impedance Z L , having an impedance value which is less than ZO, is positioned across the output terminals. A pair of input terminals is connected at the opposite end of the transmission line, one on each of the transmission line and the ground plane with a resonant tunneling diode connected across the input terminals. An impedance Z is connected to the input terminal on the biased side of the transmission line. Means are provided for applying a square wave shaped switched power supply signal to the resonant tunneling diode through impedance Z. Means are also provided for separating the square wave and oscillation signals at the output terminals.

Patent
10 Jul 1993
TL;DR: In this article, a plug coupling for flexible pipelines in motor vehicles is proposed, which can be installed automatically for detachable connection of a pipe connecting stub and a flexible pipeline nipple.
Abstract: The invention relates to a plug coupling, which can be installed (assembled) automatically, for flexible pipelines in motor vehicles, for the detachable connection of a pipe connecting stub (1) and a flexible pipeline nipple (2). In order to achieve a compact construction of a plug coupling, it is proposed that the pipe connecting stub have in the region of its free end a plurality, especially two, opposite, window-like openings (8), and that the flexible pipeline nipple has a plurality of, especially two, opposite, tongue-like springs (13), originating from a region close behind the sealing ring, which springs (13) extend axially to the rear and radially outwards beyond in each case one conical region, are pressed radially inwards into the connecting stub from the front edge of the pipe connecting stub while the flexible pipeline nipple is being pushed in and, after reaching the sealing position, spring radially outwards into the window-like openings in the pipe connecting stub.

Journal ArticleDOI
TL;DR: In this paper, a three-terminal quantum interference device using a quantum wire with a novel stub structure is described. But the authors do not describe the fabrication of the quantum wire.
Abstract: We report the fabrication of a three‐terminal quantum interference device using a quantum wire with a novel stub structure. The device achieves clear conductance modulation as a function of stub‐tuner gate voltage, which controls the stub length independently of the Fermi energy. The observed conductance oscillations can be consistently explained by the quantum interference of electron waves in the stub.

Journal ArticleDOI
01 Apr 1993
TL;DR: In this article, a longitudinal slot at the center of the broad wall of a rectangular waveguide in the presence of one or two vertical strips has been analyzed and the possibility of obtaining a resonant condition for the radiating centred slot-strip combination has been established.
Abstract: A longitudinal slot at the centre of the broad wall of a rectangular waveguide in the presence of one or two vertical strips has been analysed. The combination is excited by the dominant TE/sub 01/ mode, and the slot radiates externally. The effect of finite thickness of the waveguide walls has been taken care of by treating the slot as a stub waveguide. The coupled integral equations are solved using Galerkin's technique. The resultant coefficients are used to compute the dominant mode scattering parameters and hence the equivalent T-networks. The possibility of obtaining a resonant condition for the radiating centred slot-strip combination has been established. Design data derived in this study eliminates the need to gather initial input data experimentally.

Journal ArticleDOI
TL;DR: In this article, a planar RF tuning element is proposed to compensate for the effect of parasitic reactance inherent in various devices including semiconductor diodes and superconductor-insulator-superconductor (SIS) junctions.
Abstract: A means of mechanically altering the electrical length of a planar transmission line would greatly enhance the use of integrated circuit technology at millimeter and submillimeter wavelengths. Such a mechanically adjustable planar RF tuning element, successfully demonstrated at 100 GHz, is described here. It consists of a thin metallic sheet, with appropriately sized and spaced holes, which slides along on top of a dielectric-coated coplanar-strip transmission line. Multiple RF reflections caused by this structure add constructively, resulting in a movable RF short circuit, with mod s/sub 11/ mod >>APX=/-0.3 dB, which can be used to vary the electrical length of a planar tuning stub. The sliding short is used here to produce a 2-dB improvement in the response of a diode detector. This tuning element can be integrated with planar circuits to compensate for the effect of parasitic reactance inherent in various devices including semiconductor diodes and superconductor-insulator-superconductor (SIS) junctions. >

Patent
05 Apr 1993
TL;DR: In this article, an ultrasonic method of inspecting repaired stub tubes in a boiling water reactor was proposed. But the method was not suitable for the case of a small crack in a stub tube adjacent to the upper weld.
Abstract: An ultrasonic method of inspecting repaired stub tubes in a boiling water reactor. The top and bottom ends of each stub tube are respectively welded to the corresponding control rod drive housing and to the bottom head of the reactor pressure vessel. Under certain conditions, a crack can form in the heat-affected zone of the stub tube adjacent to the upper weld, necessitating repair by installing a mechanical seal. A probe inserted in the control rod drive housing has transducers which transmit pulsed ultrasonic energy toward a machined surface-air gap interface disposed to reflect the pulse trains generally axially through the stub tube. The radial and azimuthal dimensions of a radial crack in the stub tube are determined in dependence on which pulsed trains are reflected back to the probe by the crack via the interface.

Journal ArticleDOI
TL;DR: In this paper, a low-noise SIS heterodyne receiver optimized for astronomical observations in the 650 GHz atmospheric window, and specifically for the CO(J=6→5) line at 691.5 GHz, is presented.
Abstract: We report the development of a low noise heterodyne receiver optimized for astronomical observations in the 650 GHz atmospheric window, and specifically for the CO(J=6→5) line at 691.5 GHz. The system is based on an open structure SIS heterodyne mixer pumped by a continuously tunable solid state oscillator. A niobium SIS junction double array is placed at the end of an integrated V-Antenna. For broad band impedance matching a combination of microstrip impedance transformer and radial stub was used. Receiver noise temperatures of 550 K DSB at 684 GHz were achieved at a 1.8 K physical temperature. The performance improved substantially when decreasing the temperature from 4.2 to 1.8 K. Comparison of model calculations and Fourier transform direct detection measurements of the tuning structure implies that this effect is likely due to the coincidence of operational frequency and the gap frequency of the niobium.

Journal ArticleDOI
TL;DR: In this article, a simple physical model is used to determine the major features of the transmission characteristics over a wide temperature and frequency range for the Niobium carbon nitride (NbCN) strip.
Abstract: Several kinetic-inductance microstrip filters have been designed and tested. The microstrip consists of a superconducting niobium carbon nitride (NbCN) strip separated from a NbCN ground plane by an amorphous hydrogenated-silicon dielectric. The circuits investigated include an interferometer, a stepped-impedance, a low-frequency stub, and a high-frequency stub filter. Generally for frequencies below 20 GHz, good transmission characteristics were measured for these structures. A simple physical model is used to determine the major features of the transmission characteristics over a wide temperature and frequency range. Other important issues such as the superconductor and dielectric losses, impedance matching, and film uniformity are addressed for these structures. >

Patent
06 Aug 1993
TL;DR: In this paper, a method for producing an interdigital capacitor having a finger structure of a coplanar stub line covered by an air bridge pocket for increasing the capacitance of the line was described.
Abstract: The present invention relates to an interdigital capacitor and to a method for producing an interdigital capacitor having a finger structure of a coplanar stub line covered by an air bridge pocket for increasing the capacitance of the coplanar line. The air bridge pocket provides shielding for the capacitor structure. The disclosed manufacturing method includes producing a galvanic reinforcement of the center line of the coplanar line.

Journal ArticleDOI
TL;DR: In this article, a coplanar waveguide radial line stub resonator is experimentally characterised with respect to stub radius, sectoral angle, substrate thickness and relative dielectric constant.
Abstract: A coplanar waveguide radial line stub resonator is experimentally characterised with respect to stub radius, sectoral angle, substrate thickness and relative dielectric constant. A simple closed-form design equation, which predicts the resonance radius of the stub, is presented.

Proceedings ArticleDOI
14 Jun 1993
TL;DR: In this article, Coupled line sections using both sides of a suspended stripline substrate can be regarded as stubs folded closely parallel to the striplines, giving a number of advantages such as compact setup, a simple, one-channel strip mount, no waveguide modes, and additional degrees of freedom for circuit design.
Abstract: Coupled line sections using both sides of a suspended stripline substrate can be regarded as stubs folded closely parallel to the stripline, giving a number of advantages such as compact setup, a simple, one-channel stripline mount, no waveguide modes, and additional degrees of freedom for circuit design. It is shown that, by an appropriate design, open and short-circuited series and shunt stubs covering a wide range of stub impedances can be realized. As examples of their application, bandpass, highpass and bandstop filters are presented. >

Patent
Gamand Patrice1, Caux Christian1
02 Nov 1993
TL;DR: In this article, the authors describe a distributed-type monolithic integrated circuit on a substrate, operating in the high frequency and/or microwave range, this distributed circuit having a plurality of coupled stages each having at least a transistor with a first electrode being AC connected to ground.
Abstract: Semiconductor device including a distributed-type monolithic integrated circuit on a substrate, operating in the high frequency and/or microwave range, this distributed circuit having a plurality of coupled stages each having at least a transistor with a first electrode being AC connected to ground. The first electrode is connected to ground by two branches, a first branch being connected directly to a first ground stub and a second branch being connected to a second ground stub through a resistor.

Journal ArticleDOI
TL;DR: In this paper, the authors compared predictions of the three-port model of mixing with measured results on 345 GHz superconductor-insulator-superconductor waveguide mixers.
Abstract: Predictions of the three‐port model of the quantum theory of mixing are compared with measured results on 345 GHz superconductor‐insulator‐superconductor waveguide mixers. Single Nb‐Al2O3‐Nb tunnel junctions or two or four identical junctions in series are used as mixing elements. Two different waveguide mixerblocks, one with two tuners and another with one tuner, are used. In addition a single junction with integrated tuning stub is analyzed. Embedding impedances are obtained from fits to the pumped I‐V curves for all three types of mixing elements. In all cases the dependence of mixer conversion and mixer noise on bias voltage, pump power, and embedding impedance is well described by the three‐port model. The measured mixer gain is lower than the calculated gain by a factor of 0.35–0.65, independent of the type of mixer. The use of an additional integrated tuning element does not change this factor. It is concluded that an excess noise power equivalent with a blackbody source of 40–65 K must be added to...

Journal ArticleDOI
TL;DR: In this article, a simple closed-form design equation is presented to predict the resonance radius of the stub, which can be used as a lowpass filter or as a harmonic suppression filter.
Abstract: Coplanar waveguide (CPW) and grounded coplanar waveguide (GCPW) radial line double stub resonators are experimentally characterized with respect to stub radius and sector angle. A simple closed-form design equation, which predicts the resonance radius of the stub, is presented. Use of a double stub resonator as a lowpass filter or as a harmonic suppression filter is demonstrated, and design rules are given.

Patent
13 Jul 1993
TL;DR: In this article, the authors propose a method and apparatus for adjusting the impedance of an electromagnetic energy-actuated device to adjust either the capacitive or inductive impedance to energy transfer.
Abstract: A method and apparatus for adjusting the impedance of an electromagnetic energy-actuated device. An auxiliary test flange includes a substantially planar metallic member. An internal aperture matches the dimensions of the waveguide cavity formed at the mating ports of adjacent electromagnetic energy-actuated devices. The member includes an access groove for a metallic stub, permitting the stub to be inserted from an edge of the member into the aperture. Measurements of energy transfer are made as the stub is inserted to thereby adjust either the capacitive or inductive impedance to energy transfer. After a predetermined degree of energy transfer is observed, one or the other of the devices may be modified by the addition of a permanent auxiliary flange or directly modified in accordance with the optimized aperture reduction.

Patent
26 Nov 1993
TL;DR: In this paper, the strip line band pass filter with a wide band and high performance with respect to a strip line loop resonator filter used for various high frequency communication equipments so as to attain fine-adjustment of the center frequency.
Abstract: PURPOSE:To obtain the strip line band pass filter with a wide band and high performance with respect to the strip line loop resonator filter used for various high frequency communication equipments so as to attain fine-adjustment of the center frequency. CONSTITUTION:Two U-shaped strip lines 107 whose line impedance is Z2 and whose electric length is theta2 and a U-shaped strip line 108 whose line impedance is Z3 and whose electric length is theta3 are connected in parallel opposite to a U-shaped strip line 106 whose line impedance is Z1 and whose electric length is theta1. In the strip line loop resonator of the configuration as above, input output terminals are arranged on the strip line 106 opposite to each other symmetrically apart by 90 deg. in an electric length, and a strip line stub 109 for the frequency adjustment is arranged in the middle of the strip line 108. The pass band width is controlled by changing the line impedance and a ratio of the electric length of the lines. Furthermore, the center frequency is fine-adjusted by trimming the strip line stub 109.

Patent
12 May 1993
TL;DR: In this article, a quantum interference device has semiconductor heterojunctions laminated on a semiconductor substrate for forming a two-dimensional electron gas channel, and a stub is formed between the entrance and the exit.
Abstract: A quantum interference device has semiconductor heterojunctions laminated on a semiconductor substrate for forming a two-dimensional electron gas channel. On the semiconductor heterojunctions are formed a first, a second and a third electrode which, upon the application of a negative voltage, form a depletion region within the semiconductor heterojunctions, thereby making the resulting two-dimensional electron gas channel a quantum wire of a stub structure comprising an entrance and an exit for electron waves, and a stub formed between the entrance and the exit. The second and third electrodes each have a first side substantially parallel to a side of the first electrode. The second and third electrodes also have a second side parallel to each other's second side. On a site near the edge of said stub is provided a fourth electrode for defining the effective length of the stub by a voltage applied thereto.

Patent
21 Dec 1993
TL;DR: A movable toy includes a toy body having movable hands and tail, a motor and an electric board are disposed in the toy body, a pair of barrels are located close to the hands for rotatably supporting two shafts which extend into the hands, a stub is located near to the tail portion for rotating a rod which extends into the tail, the shafts and the rod are coupled to the motor and driven by the motor, the hands and the tail part are rotated when the motor is energized.
Abstract: A movable toy includes a toy body having movable hands and tail, a motor and an electric board are disposed in the toy body, a pair of barrels are located close to the hands for rotatably supporting two shafts which extend into the hands, a stub is located close to the tail portion for rotatably supporting a rod which extends into the tail portion, the shafts and the rod are coupled to the motor and driven by the motor, the hands and the tail portion are rotated when the motor is energized. A light-sensitive resistor is connected to the motor for controlling the motor.