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Circularly polarized ceramics dielectric resonator antenna excited by Y-shaped microstrip

✍ Scribed by Li-Xian Li; Shun-Shi Zhong; Sai-Qing Xu; Min-Hua Chen

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
248 KB
Volume
51
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A circularly polarized ceramics dielectric resonator antenna fed by a Y‐shaped microstrip is proposed and analyzed. The CP design is achieved by simply adjusting the lengths and widths of two quadrate shorted stubs. The antenna is compact in structure, whose radius is only 4.5 mm. The reflection, polarization, and radiation characteristics of the antenna are studied. For the proposed antenna, with relative dielectric constant of resonator Ξ΅~__r__1~ = 38, a measured impedance bandwidth of 6.8%, a measured minimum axial ration of 0.8 dB, and a wide beamwidth of 164Β°are achieved. Β© 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2416–2418, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24653

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