Results 21 to 30 of about 221,941 (298)
Low-noise 1 THz niobium superconducting tunnel junction mixer with a normal metal tuning circuit [PDF]
, 1996 We describe a 1 THz quasioptical SIS mixer which uses a twin-slot antenna, an antireflection-coated silicon hyperhemispherical lens, Nb/Al-oxide/Nb tunnel junctions, and an aluminum normal-metal tuning circuit in a two-junction configuration.
Bin, M. +4 more
core +1 more source
Multistep Transitions From Microstrip and GCPW Lines to SIW in 5G 26 GHz Band
IEEE Access, 2021 Substrate integrated waveguides (SIW) are a topic of interest for many researchers, due to their power handling capabilities and compatibility with planar processing techniques.
Alfonso Gomez Garcia +3 more
doaj +1 more source
SensorsThis article presents an in-depth investigation of wearable microwave antenna sensors (MASs) used for vital sign detection (VSD) and lung water level (LWL) monitoring.
Anwer S. Abd El-Hameed +3 more
doaj +1 more source
Microstrip filters for measurement and control of superconducting qubits
, 2013 Careful filtering is necessary for observations of quantum phenomena in superconducting circuits at low temperatures. Measurements of coherence between quantum states requires extensive filtering to protect against noise coupled from room temperature ...
Bennett, Douglas A. +4 more
core +1 more source
Ultra wideband vertical microstrip–microstrip transition
IET Microwaves, Antennas & Propagation, 2007 Simple design guidelines for an ultra wideband aperture-coupled vertical microstrip-microstrip transition are presented. The proposed transition uses broadside coupling between elliptical-shaped microstrip patches at the top and bottom layers via an elliptical-shaped slot in the mid-layer.
openaire +2 more sources
International journal of RF and microwave computer-aided engineering, 2019 In this work, design optimization of a varicap diode loaded antenna consisting of four identical rectangular microstrips is presented as a pattern reconfigurable antenna at 5.2 GHz.
P. Mahouti
semanticscholar +1 more source
MagnetismIn this article, a comprehensive review is presented of recent technological advancements utilizing electromagnetic sensors in the microwave range for detecting human vital signs and lung water levels.
Anwer S. Abd El-Hameed +3 more
doaj +1 more source
Advanced Electromagnetics, 2020 This paper presents a new design of a super compact Ultra wideband (UWB) band-pass filter (BPF) with rejection of X-band satellite applications. For covering the UWB bandpass, the proposed filter is realized using hybrid technique which is achieved by ...
H. El Omari El Bakali +4 more
doaj +1 more source
Microstrip doubler microwave with non-traditional implementation
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2019 Frequency multipliers are used in electronic devices to generate spectrally pure sinusoidal signals in the frequency range from a few to tens of GHz. The multipliers are used to multiply the frequency of highly stable but more low-frequency devices with ...
E. Glushechenko
doaj +1 more source
Scientific ReportsThis study presents a new compact single-layer microstrip 4-port super UWB MIMO antenna designed to operate in the frequency range of (2.5–50) GHz, achieving an impressive 320.2% impedance bandwidth.
Hesham A. Mohamed, Mohamed Aboualalaa
doaj +1 more source