Results 11 to 20 of about 54,143 (209)
Multimode and Multiband Microstrip Antennas [PDF]
, 2007 This thesis describes original work on the broadband and multiband matching of microstrip patch antennas. Microstrip patch antennas suffer from many constraints on their performance. One major restriction is their narrow impedance bandwidth.
Abunjaileh, Alaa Ibrahim
core +7 more sources
Microstrip antennas utilizing MEMS for reconfigurable polarisation states [PDF]
, 2009 A modern approach to an established technique is investigated for the electronic control of polarisation of microstrip patch antennas. The control is achieved by placing micro-electromechanical switches (MEMS) at appropriate locations in a patch ...
Morrow, Ivor L. +2 more
core +7 more sources
Bandwidth enhancement for microstrip patch antenna using stacked patch and slot [PDF]
, 2009 Small size wideband microstrip patch antenna with slot in ground plane and stacked patch fed through microstrip line is presented. By inserting slot on ground plane and stacked patch supported by wall, the bandwidth can improve up to 25% without ...
AbuTarboush, HF +5 more
core +7 more sources
Rapid Detection of Coronavirus (COVID-19) Using Microwave Immunosensor Cavity Resonator
Sensors, 2021 This paper presents a rapid diagnostic device for the detection of the pandemic coronavirus (COVID-19) using a micro-immunosensor cavity resonator. Coronavirus has been declared an international public health crisis, so it is important to design quick ...
Dalia M. Elsheakh +7 more
doaj +1 more source
Sensors, 2021 This paper exhibits a high-gain, low-profile dipole antenna array (DAA) for 5G applications. The dipole element has a semi-triangular shape to realize a simple input impedance regime. To reduce the overall antenna size, a substrate integrated cavity (SIC)
Shaza El-Nady +3 more
doaj +1 more source
IEEE Access, 2021 A transparent antenna array based on silver sandwiched indium tin oxide (AgITO) heterostructure thin films is presented. The AgITO is sputtered on both sides of soda-lime glass (SLG) substrate, and the three thin films deposition parameters are optimized
Nermeen A. Eltresy +4 more
doaj +1 more source
Broadband Low RCS Based on Polarization- Dependent Artificial Magnetic Conductor Metasurface
IEEE Access, 2023 The reduction of radar cross-section (RCS) becomes an essential requirement for many military and civilian applications. One of the ways to achieve this is by using artificial magnetic conductors (AMCs) as electromagnetic surfaces.
Shimaa A. M. Soliman +3 more
doaj +1 more source
The Iseult Coil, a Hybrid RF Coil for the First Human Brain Images at 11.7 T: Receive Performance Comparison With a Twin Coil at 7 T. [PDF]
NMR BiomedOur 8‐Tx/32‐Rx coil is based on two rows of transceiver microstrips intertwined with receive‐only loops. Comparison of the intrinsic SNR at 7 and 11.7 T leads to a 2.2 ratio for the human brain, and 2.75 for a 16‐cm agar sphere, translating into α = 1.5 and 1.95 in the B0α$$ {B}_0^{\alpha } $$‐SNR model, respectively.
Amadon A +8 more
europepmc +2 more sources
A Pattern Reconfigurable Antenna Using Eight-Dipole Configuration for Energy Harvesting Applications
Sensors, 2023 A pattern reconfigurable antenna, composed of eight elements, is proposed for energy harvesting applications. Pattern reconfigurable antennas are a promising technique for harvesting from different wireless sources.
Mohamed Aboualalaa +3 more
doaj +1 more source
IEEE Access, 2023 This paper presents a dual-band split-ring structure that provides end-fire radiation characteristics for multi-input multi-output (MIMO) mm-wave 5G applications.
Mohamed Aboualalaa, Islam Mansour
doaj +1 more source