Stub (electronics)

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

Directional nonreturn to zero computer bussing system

Abstract: A high-speed data transmission network employing data representations as changes in voltage along a transmission line. Directional coupling elements are spaced along the transmission line to couple information from the transmission line to stub lines. Each stub line is connected to a receiver circuit designed to interpret pulses on the stub line as one binary state and no pulses on the stub line as a second binary state.

Compact Quintuple-Mode Stub-Loaded Resonator and UWB Filter

Abstract: A novel compact quintuple-mode stub-loaded resonator and ultrawideband (UWB) bandpass filter (BPF) are proposed in this letter. The proposed resonator can generate two odd modes and three even modes in the desired band. The odd-mode resonance frequencies are exclusively correlated to the modified triple-mode resonator; even-mode resonance frequencies can be flexibly controlled by the impedance-stepped open and short stub at its central plane, whereas the odd-mode ones are fixed. The open stubs in pairs at two sides of the low-impedance line are mainly applied to adjust the high resonant modes (fm4, fm5) into desired passband. The short stub can generate two transmission zeros near the lower and upper cutoff frequencies, leading to high rejection skirt. A quintuple-mode UWB filter is simulated, fabricated, and measured. The EM simulated and measured results are presented, and an excellent agreement is obtained.

Design of a Dual Band-Notch UWB Slot Antenna by Means of Simple Parasitic Slits

Abstract: In this letter, a planar slot antenna with dual-band-notch characteristics is proposed for ultrawideband application. The basic antenna comprises a rectangular tuning stub and a ground plane with a tapered-shape slot. To create a notched band for WiMAX, one angle-shaped parasitic slit is etched out along with the tuning stub, while for WLAN, two symmetrical parasitic slits are placed inside the slot of the ground plane. By properly adjusting the size and location of the parasitic slits, it is found that the proposed antenna can achieve ultrawide operating band with dual-notched band without altering the overall antenna size. These notched bands will help to mitigate the possible interference between UWB and these narrow bands.

Surface Wave Grating Reflectors and Resonators

Abstract: The realization of complex microsound circuits would be greatly facilitated if one were able, efficiently to reflect the surface waves. For example, such reflectors are required for making a "short-circuited" stub, or for a low mode-order resonator. It is known that the interdigital transducer can reflect a surface wave, with rather low losses; however, this approach involves the use of an external inductive tuning circuit, which must be attached to the transducer in order to resonate its self-capacitance. It is therefore a method which cannot be used in those situations where the primary objective is the achievement of very large component densities.