Results 51 to 60 of about 320,379 (193)

Integrated Filter Antennas for Wireless Transceivers [PDF]

, 2017
This thesis presents the research carried out on the integration of filters and antennas for wireless transceivers. Filters and antennas are parts of wireless transceivers of all wireless communication systems. Filters and antennas, albeit connected, are
Ahmad, W.
core   +1 more source

Radiation characteristics of corner reflector antennas. [PDF]

, 1998
PhDThis thesis presents a study of the radiation characteristics of corner reflector antennas. The influence of the design parameters on the radiation characteristics are assessed using an analytical method and the Finite Difference Time Domain (FDTD)
Sterr, U.
core   +2 more sources

Experimental verification of broadband antennas loaded with metamaterials

, 2015
The intrinsic frequency dispersion has been usually considered as a relevant drawback of metamaterials, limiting their application to narrowband microwave components.
BILOTTI, FILIBERTO, A Toscano, VERRENGIA, ANDREA, MONTI, ALESSIO, Muha, D., TROTTA, FABRIZIO, F. Trotta, TOSCANO, ALESSANDRO, A. Verrengia, D. Ramaccia, F. Bilotti, RAMACCIA, DAVIDE, BARBUTO, MIRKO, A. Monti, D. Muha, M. Barbuto, Hrabar, S., S. Hrabar   +17 more
core   +1 more source

Compact circularly polarized metasurface antenna based on characteristic mode analysis

Electronics Letters
This article introduces a novel, single‐layer, low‐profile, circularly polarized metasurface antenna. Through characteristic mode analysis, the optimization of a 3×3 rectangular metasurface structure was performed.
Qing Wang, Xiaopeng Lei, Xiaohai Han, Zhiwei Ge, Zhenya Lei   +4 more
doaj   +1 more source

Azimuth Null-Reduced Radiation Pattern, Ultralow Profile, Dual-Wideband and Low Passive Intermodulation Ceiling Mount Antenna for Long Term Evolution Application

IEEE Access, 2019
An ultralow profile, dual-wideband and low passive intermodulation (PIM) in-building ceilingmount antenna for long term evolution (LTE) distributed antenna system (DAS) application is presented.
Kok Jiunn Ng, Mohammad Tariqul Islam, Adam Alevy, Mohd. Fais Mansor, Choon Chung Su   +4 more
doaj   +1 more source

Antenna arrays focused by broadband signals

Физика волновых процессов и радиотехнические системы, 2015
Broadband and ultra-wideband signals are increasingly used in modern antenna technology, and various radio systems. Traditional performance evaluation antennas operating with narrow band signals are not always adequately reflect the characteristics of ...
Yu.E. Sedelnikov, D.A. Vedenkin
doaj  

High‐gain omnidirectional patch antenna for conformal application based on near‐zero‐index metamaterials

IET Microwaves, Antennas & Propagation, 2021
Achieving a high‐gain omnidirectional patch antenna with low profile is a challenging task. On the basis of improving antennas by metamaterials, a broadband near‐zero‐index metamaterial (NZIM) is designed to enhance the horizontal gain of the ...
Tianqiang Zhang, Jing Zhao, Yao Guo, Xiaopeng Zhao   +3 more
doaj   +1 more source

Compact broadband rectangular microstrip antennas

, 2006
Compact and broadband gap-coupled microstrip antennas using modified variations of the rectangular microstrip antenna (MSA), namely, C-shaped, shorted L-shaped, W-shaped, and square-ring MSAs. are proposed.
Amit A. Deshmukh, KUMAR, G, Girish Kumar, DESHMUKH, AA   +3 more
core   +1 more source

Trade-off between complexity and BER performance of a polynomial SVD-based broadband MIMO transceiver [PDF]

, 2010
In this paper we investigate non-linear precoding solutions for the problem of broadband multiple-input multiple output(MIMO) systems. Based on a polynomial singular value decomposition (PSVD) we can decouple a broadband MIMO channel into independent ...
Al-Hanafy, Waleed, Weiss, S.
core   +3 more sources

Design of a Highly Durable X-Band Array Antenna for Military Radar Systems [PDF]

Journal of Electromagnetic Engineering and Science
In this paper, we propose a design technique for a highly durable X-band array antenna operating in the harsh maritime environment of military ships.
En-yeal Yim, Doyoung Jang, Hosung Choo
doaj   +1 more source