A Cross Polarization Suppressed Sequential Array with L-Probe Fed Rectangular Microstrip Antennas

Autor:	Shigeki Obote, Atsushi Tomiki, Kenichi Kagoshima, Tomoaki Toda, Keigo Sato, Kazuki Ikeda
Rok vydání:	2011
Předmět:	Patch antenna Computer Networks and Communications Computer science business.industry Aspect ratio (image) Directivity Microstrip antenna Wavelength Optics Antenna element Standing wave ratio Electrical and Electronic Engineering Antenna (radio) Telecommunications business Software
Zdroj:	IEICE Transactions on Communications. :2653-2655
ISSN:	1745-1345 0916-8516
DOI:	10.1587/transcom.e94.b.2653
Popis:	In this paper, we present a sequentially rotated array antenna with a rectangular patch MSA fed by an L-probe. Since it's important to decrease couplings between patch elements in order to suppress the cross-polarization level, rectangular patches with aspect ratio of k are adopted. We investigate the cross-polarization level of the sequential array and discuss the relationship between the cross-polarization level and the mutual coupling. As a result, the bandwdith of the antenna element is obtained 14.6% when its VSWR is less than 1.5, and the directivity and cross-polarization level of a 4-patch sequential array are 10.8dBic and 1.7dBic, respectively, where k=0.6 and the patch spacing of d=0.5 wave length. These characteristics are 5.6dB and 5.8dB better than the corresponding values of a square patch sequential array antenna.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfb15ce8e40dac4ee531d32f33d9f687 https://doi.org/10.1587/transcom.e94.b.2653 Zobrazit plný text záznamu