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Stub (electronics)

About: Stub (electronics) is a research topic. Over the lifetime, 8172 publications have been published within this topic receiving 75018 citations.


Papers
More filters
Patent
24 Jul 1981
TL;DR: In this article, a microwave oscillator circuit with an FET, a dielectric resonator and a micro-strip line has a capacitive reactance element connected between the source terminal of the FET and ground or between source and drain terminals of the fET, so that the oscillation frequency fluctuations due to power supply voltage fluctuations or the ambient temperature variations can be suppressed.
Abstract: A microwave oscillator circuit with an FET, a dielectric resonator and a micro-strip line has a capacitive reactance element connected between the source terminal of the FET and ground or between the source and drain terminals of the FET, so that the oscillation frequency fluctuations due to the power supply voltage fluctuations or the ambient temperature variations can be suppressed.

24 citations

Proceedings ArticleDOI
10 Jul 1991
TL;DR: In this article, the effect of airbridges on the performance of various coplanar waveguide (CPW) discontinuities is studied, and the frequency response of each discontinuity with and without the air-bridge is studied.
Abstract: The effect of air-bridges on the performance of various coplanar waveguide (CPW) discontinuities is studied. Specifically, the coupled open-end CPWs and the short-end shunt CPW stub discontinuities are considered. The high-frequency effect of the air-bridge is evaluated using a hybrid technique. First, the frequency-dependent equivalent circuit of the planar discontinuity without the air-bridge is derived using the space domain integral equation method. Then, the circuit is modified by incorporating the air-bridge's parasitic inductance and capacitance, which are evaluated using a simple quasi-static model. The frequency response of each discontinuity with and without the air-bridge is studied, and the scattering parameters are plotted in the frequency range 30-50 GHz for typical CPW dimensions. >

24 citations

Patent
31 Mar 1976
TL;DR: In this paper, a lettuce and like dryer is adapted for use with a conventional blender apparatus or other appliances such as an electric juicer having a vertical drive shaft, the dryer including an outer basket having a top opening and a bottom having a generally annular reservoir and an axial opening.
Abstract: A lettuce and like dryer is adapted for use with a conventional blender apparatus or other appliances such as an electric juicer having a vertical drive shaft, the dryer including an outer basket having a top opening and a bottom having a generally annular reservoir and an axial opening, engaging means at the bottom axial opening adapted to engage the housing of said blender, an inner axial stub shaft connected to gear drive means mounted in said bottom opening and adapted to engage the blender drive shaft and perforate basket means removably engaging said stub shaft to be driven thereby

24 citations

Journal ArticleDOI
TL;DR: In this article, a balanced bandpass filter is proposed based on stub-loaded ring resonators (SLRRs) and loaded coupled feed-lines (CFLs) with high selectivity and commonmode (CM) rejection.
Abstract: A balanced bandpass filter is proposed based on stub-loaded ring resonators (SLRRs) and loaded coupled feed-lines (CFLs) with high selectivity and common-mode (CM) rejection By controlling the coupling coefficient of the CFLs, three transmission poles within the differential passband are achieved The CFLs are loaded with open- and short-circuited stubs at the end of the traditional parallel-coupled feed-lines, which resulting in multiple transmission zeros (TZs) in differential mode (DM) and CM to improve the passband selectivity and CM suppression, simultaneously Finally, the proposed filter is designed and fabricated, the simulated and measured results are in good agreement The filter shows low insertion loss, multiple transmission zeros, high selectivity and enhanced CM rejection

24 citations

Journal ArticleDOI
TL;DR: A low radar cross section, compact wideband, circularly polarized, multiple-input-multiple-output (MIMO) antenna for microwave sensing and measurement applications in S-and $C$ -bands is presented and significant RCS reduction in the frequency range of 10–24 GHz is demonstrated.
Abstract: This article presents a low radar cross section (RCS), compact wideband, circularly polarized, multiple-input-multiple-output (MIMO) antenna for microwave sensing and measurement applications in S -and $C$ -bands. The proposed antenna consists of a wide slot and an I-shaped protruding stub in the ground plane of the antenna. A U-shaped strip is incorporated between two microstrip feed lines to achieve high isolation between antenna elements and a low envelope correlation coefficient (ECC), which results in the improved performance of the microwave sensing and measurement system. An array of the square slot is created in the ground plane of the antenna, which further enhances the isolation between the antenna elements and also reduces the RCS of the proposed antenna. The latter is fabricated with a low-cost FR-4 substrate using a precision printed circuit board milling machine. The 10-dB impedance bandwidth of the proposed antenna is 88% (3.7–9 GHz) with the isolation of greater than 15 dB. The 3-dB axial ratio bandwidth (ARBW) of the antenna is 3.7–5.7 GHz. The proposed antenna demonstrates significant RCS reduction in the frequency range of 10–24 GHz when compared with the same size metallic plate. The ECC, diversity gain (DG), and total active reflection coefficient (TARC) are also evaluated to justify the diversity performance of the proposed MIMO antenna.

24 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023205
2022471
2021294
2020397
2019433
2018472