Results 71 to 80 of about 3,802 (219)
MMIC power amplifiers as local oscillator drivers for FIRST [PDF]
, 2000 The Heterodyne Instrument for the Far-Infrared and Sub- millimeter Telescope requires local oscillators well into the terahertz frequency range. The mechanism to realize the local oscillators will involve synthesizers, active multiplier chains (AMC's ...
Bruston, J. +11 more
core +1 more source
A 76–81 GHz GaAs pHEMT Transceiver Front‐End MMIC for FMCW Radar System
Electronics Letters, Volume 61, Issue 1, January/December 2025.A 76–81 GHz transceiver front‐end monolithic microwave integrated circuit for W‐band frequency modulated continuous wave radar front‐end miniaturization is fabricated via 0.1 µm GaAs pHEMT technology, integrating mixer, directional coupler, filter and other modules.
Chunyu Pu, Xiaofeng Yang
wiley +1 more source
Gate recess study for high thermal stability pHEMT devices
EPJ Web of Conferences, 2017 Gate formation is a crucial steps, especially in FET fabrication process. At this steps, the characteristics are very much influenced by the processing parameters, particularly in the processing temperature. In this paper, we report the thermal stability
Isa M. Mohamad +7 more
doaj +1 more source
Dual-Band Power Amplifier Design at 28/38 GHz for 5G New Radio Applications
IEEE Access, 2022 This paper presents the design of a dual-band power amplifier (PA) featuring similar performance at 28 GHz and 38 GHz. In the new radio (NR) of the fifth generation (5G) communication system, the inter-band carrier aggregation technique is commonly ...
Yi-Fan Tsao +3 more
doaj +1 more source
A through wall doppler radar system: active textile antenna design, prototyping and experiment [PDF]
, 2013 Using garments as a platform for electronic sensing and communication systems opens up a wide range of novel and exciting applications. By carefully tailoring the antenna properties and by adopting a dedicated design strategy, a robust wearable antenna ...
Agneessens, Sam +6 more
core +1 more source
Accurate pHEMT nonlinear modeling in the presence of low-frequency dispersive effects [PDF]
, 2005 Low-frequency (LF) dispersive phenomena due to device self-heating and/or the presence of "traps" (i.e., surface state densities and bulk spurious energy levels) must be taken into account in the large-signal dynamic modeling of III-V field-effect ...
Filicori, Fabio +7 more
core +1 more source
Active quasi circulator: Comprehensive review and performance comparison
Engineering Reports, Volume 6, Issue 6, June 2024.To cope up with the increased data transmission rate due to the modern multiband wireless communication systems, the three‐port circulator must be equipped with the ability to operate in different frequency levels while having adequate bandwidth. Thus, designing circulator as an antenna interface device becomes a challenging, particularly active‐quasi ...
Mehedi Hasan +2 more
wiley +1 more source
Multifunction MMIC For Miniaturized Solid State Switch Matrix [PDF]
, 2003 This paper describes a new multifunction MMIC expressly designed for a reconfiguration matrix equipment.This MMIC has been developed using a standard PHEMT process and includes two switches,a totally switchable-off amplifier and a temperature ...
Cavanna, T. +3 more
core +1 more source
A compact 60‐GHz on‐chip bandpass filter in GaAs technology
Electronics Letters, Volume 60, Issue 7, April 2024.A compact 60‐GHz on‐chip bandpass filter (BPF) is presented using gallium arsenide (GaAs) technology. The measurements show that it has a centre frequency of 60.2 GHz with a bandwidth of 14%, and the minimum insertion loss (IL) within the passband is 2.57 dB. The chip size, excluding the feedings, is about 0.265 mm × 0.184 mm. Abstract A compact 60‐GHz
Kai‐Da Xu +3 more
wiley +1 more source
A 24 GHz up-converter mixer design with balun circuit
Dianzi Jishu Yingyong, 2018 Based on the structure of Gilbert，a 24 GHz up-conversion mixer was designed with three-piece balun circuit on-chip. Using the gm/I method to coordinate the transistor size to obtain better conversion gain, isolation degree and circuit dissipation power ...
Zhou Zhengxuan +3 more
doaj +1 more source