Wideband Circularly Polarized Slotted-Patch Antenna With a Reflector

Autor:	Jeen-Sheen Row, Jhih-Ming Chen
Rok vydání:	2015
Předmět:	Patch antenna Microstrip antenna Optics Materials science Coaxial antenna Cassegrain antenna business.industry Antenna measurement Electrical and Electronic Engineering business Monopole antenna Periscope antenna Antenna efficiency
Zdroj:	IEEE Antennas and Wireless Propagation Letters. 14:575-578
ISSN:	1548-5757 1536-1225
DOI:	10.1109/lawp.2014.2374453
Popis:	A design for wideband circularly polarized (CP) antennas with unidirectional radiation is described. The antenna structure is mainly composed of a rectangular slotted patch and a metallic reflector. First, an optimum CP design for the standalone slotted patch antenna is investigated, and a 3-dB-axial-ratio bandwidth of 53% is obtained. Then, the metallic reflector is placed at the rear of the slotted patch for generating unidirectional radiation, and the effects of various reflector sizes on CP performances are studied. Measured results show that the slotted patch antenna with a reflector has almost the same CP bandwidth as the standalone slotted patch antenna, and it has good impedance matching as well as stable radiation patterns across the CP operating frequencies.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a832aecdb973a3cc81da48f64c0d8dc8 https://doi.org/10.1109/lawp.2014.2374453 Zobrazit plný text záznamu