Results 1 to 10 of about 51,071 (307)

Design of planar four-antenna system for single soldier handheld terminal

open access: yesDianzi Jishu Yingyong, 2021
The planar integration design of the antenna system for soldier terminals is presented in this paper based on the requirements of the miniaturization and high integration. A four-antenna system including recieving and transmitting Ad-Hoc network antennas,
Zhou Wenhui
doaj   +1 more source

Planar antennas [PDF]

open access: yesIEEE Microwave Magazine, 2006
The development of the broadband antenna for ultrawideband (UWB) applications such as communications, imaging, radar, and localization is discussed. UWB systems are based on transmitting and receiving impulses with extremely wide spectra. As the antennas for UWB should have broad operating bandwidths for impedance matching and high-gain radiation in ...
Cheng, Zhi Ning   +5 more
openaire   +3 more sources

A Review on the Development of Spaceborne Membrane Antennas

open access: yesSpace: Science & Technology, 2022
The membrane antenna technology is a very promising approach to obtain large aperture with light weight and low stowed volume. In the past decades, extensive studies have been carried out on active and passive membrane antennas.
Ming-Jian Li   +4 more
doaj   +1 more source

A novel broadband windmill‐shaped metasurface antenna with stable radiation patterns

open access: yesIET Microwaves, Antennas & Propagation, 2023
A novel windmill‐shaped metasurface (MTS) structure is firstly presented and applied to realise broadband antennas with stable radiation patterns. Different from conventional square MTS structure, the proposed windmill‐shaped MTS structure is formed by ...
Dongxu Chen   +5 more
doaj   +1 more source

Wideband circularly polarised antenna with dual‐fed strategy simplification based on common mode and differential mode

open access: yesIET Microwaves, Antennas & Propagation, 2023
A novel circularly polarised (CP) antenna design, termed differential mode (DM) and common mode (CM) design, is presented with equal‐amplitude in‐phase feed (EAIPF) in this article.
Yang Luo   +3 more
doaj   +1 more source

Decoupling and Cloaking of Tailored Complementary Cloaked Antennas

open access: yesIEEE Access, 2023
We explore complementary cloaked antennas to improve their designs and to increase our understanding of the fundamental concepts of mutual coupling and cloaking effects by metasurface cloaks.
Doojin Lee
doaj   +1 more source

A broadband dual‐polarised antenna with L‐shaped strips for long‐term evolution/5G application

open access: yesIET Microwaves, Antennas & Propagation, 2023
A broadband dual‐polarised antenna with L‐shaped strips for long‐term evolution (LTE)/5th generation mobile networks (5G) is proposed in this article. Based on the principle of multi‐mode resonance, wide bandwidth is achieved with L‐shaped strips and H ...
Rui Wu   +3 more
doaj   +1 more source

Tuning-Range Extension Strategies for Varactor-Based Frequency-Reconfigurable Antennas

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
Tuning range extension strategies for varactor-based frequency-reconfigurable planar patch antennas are presented. The three tuning range optimization methods described in the paper include co-optimization of antenna dimensions and varactor properties ...
Quoc Hung Dang   +3 more
doaj   +1 more source

An investigation into the Gustafsson limit for small planar antennas using optimisation [PDF]

open access: yes, 2013
The fundamental limit for small antennas provides a guide to the effectiveness of designs. Gustafsson et al, Yaghjian et al, and Mohammadpour-Aghdam et al independently deduced a variation of the Chu-Harrington limit for planar antennas in different ...
Lewis, Andrew   +2 more
core   +2 more sources

Design of a Wideband Inductively Coupled Loop Feed Patch Antenna for UHF RFID Tag [PDF]

open access: yes, 2015
A planar wideband patch antenna for ultra-high frequency (UHF) radio frequency identification (RFID) tag for metallic applications is presented in this research work.
Bashri, M. S. R.   +2 more
core   +10 more sources

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