Results 11 to 20 of about 567,106 (189)
Effect of the Aperture Ratio on the Impedance Bandwidth of an Aperture Coupled Microstrip Antenna [PDF]
Radioengineering, 2018 The effect of the aperture ratio on the impedance bandwidth of an aperture coupled microstrip antenna (ACMA) is investigated according to the coupling strength from a microstrip feed line to a patch.
Jae-Hyun Kim, Boo-Gyoun Kim
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Wide-band planar inverted-F antenna for cognitive radio [PDF]
, 2009 A wide-band Planar Inverted-F Antenna (PIFA) is presented. The proposed antenna is simply structured consist of main patch supported by shorting wall and shorting pin, fed by 50 ohm microstrip transmission line. The antenna achieves an enhanced impedance
AbuTarboush, HF +3 more
core +7 more sources
Towards high-bandwidth scanning impedance imaging
, 2016 Contact-less, three-dimensional scanning is a highly important field for the semiconductor industry. By using a system of high-bandwidth impedance sensors and drive electronics, the physical constituents of ICs such as buried/surface dielectrics, buried/surface conductors and PN junctions could be detected. This thesis takes an initial step toward high-
Kumar, Rakesh, Ph. D. Massachusetts Institute of Technology
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Bandwidth enhancement for small patch antenna using PBG structure for different wireless applications [PDF]
, 2009 A design strategy using Photonic Band Gap (PBG) structure on ground plane to achieve wider bandwidth for patch antenna is presented. It is found that, the impedance bandwidth has improved from 3.72% to 31.9% at centre frequency 9 GHz after adding PBG on ...
AbuTarboush, HF +2 more
core +5 more sources
IET Microwaves, Antennas & Propagation, 2022 In this study, a novel broadband circularly polarised waveguide slot array antenna with a wide axial ratio bandwidth is designed. The circular polariser is excited by the waveguide radiation linear polarised antenna, whose end is bent by 90° and ...
Hai Wang +6 more
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Small patch/slot antenna with 53% input impedance bandwidth [PDF]
Electronics Letters, 2007 A small microstrip patch/slot antenna, which achieves a very large bandwidth on a relatively thin substrate (about 0.01λ0), is presented. The performance is achieved by employing a combination of annular-ring loading on the patch radiator and the use of a crossed-slot for miniaturisation.
Bao, Xiulong, Ammann, Max
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Wideband Crescent-Shaped Slotted Printed Antenna with Radiant Circular Polarisation
International Journal of Antennas and Propagation, 2021 Producing a suitable impedance matching between the radiating element and the feedline is the prior hurdle to overcome for a wideband antenna with circular polarisation designs.
Akrem Asmeida +5 more
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Enhancing the impedance matched bandwidth of bottle microresonator signal processing devices [PDF]
, 2021 Light pulses entering an elongated bottle microresonator (BMR) from a transversely oriented input–output waveguide (microfiber) slowly propagate along the BMR length and bounce between turning points at its constricting edges.
Sumetsky, M. +3 more
core +2 more sources
Pin‐loaded planar wideband end‐fire circularly polarised antenna
Electronics Letters, 2021 A single‐layer planar end‐fire circularly polarised microstrip antenna with enhanced bandwidth is proposed by loading with a metal pin. The original antenna is designed with a shorted parallel‐plate cavity that serves as a magnetic dipole, and a double ...
Dongmei Yang +4 more
doaj +1 more source
A monopole broadband circularly polarized antenna with coupled disc and folded microstrip stub lines
EURASIP Journal on Wireless Communications and Networking, 2023 A broadband circularly polarized (CP) printed monopole antenna which fed by coplanar waveguide (CPW) is proposed in the paper. The structure of the novel antenna includes a quarter circular disc radiating monopole, a coupled circular patch, and a bent L ...
Zhonghua Ma +3 more
doaj +1 more source