A Novel Unidirectional Dual-Band Circularly-Polarized Patch Antenna

Autor:	Can-Hui Chen, Edward K. N. Yung
Rok vydání:	2011
Předmět:	Physics Patch antenna Microstrip antenna Optics Feed technique business.industry Excited state Bandwidth (signal processing) Multi-band device Electrical and Electronic Engineering business Electrical impedance Circular polarization
Zdroj:	IEEE Transactions on Antennas and Propagation. 59:3052-3057
ISSN:	1558-2221 0018-926X
DOI:	10.1109/tap.2011.2158961
Popis:	A novel unidirectional dual-band circularly -polarized (CP) patch antenna is proposed in this communication. By loading a pair of L-shaped stubs outside the truncated patch, an outer mode and an inner mode are excited respectively. Therefore, dual-band CP operations are generated. The dual CP bandwidths are 3% and 4%. Because the meandering probe feed technique is used, the proposed antenna enjoys the wide impedance bandwidths of 8% for the lower band and 19% for the upper band. The peak gains within the dual bands are 9 dBic and 8.2 dBic and its height is 0.086λ. Besides, the front-to-back ratios are about 20 dB.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::88657b078fd3e113d1ea80711b0d0266 https://doi.org/10.1109/tap.2011.2158961 Zobrazit plný text záznamu