DUAL CIRCULARLY POLARIZED ANTENNA WITH SUSPENDED STRIP LINE FEEDING | Zendy

Jian Wu | Zendy; Yang Hao | Zendy; Yingzeng Yin | Zendy

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DUAL CIRCULARLY POLARIZED ANTENNA WITH SUSPENDED STRIP LINE FEEDING

Author(s) -

Jian Wu,

Yang Hao,

Yingzeng Yin

Publication year - 2014

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

ISSN - 1937-8718

DOI - 10.2528/pierc14092301

Subject(s) - turnstile antenna , dual (grammatical number) , line (geometry) , antenna (radio) , physics , optics , coaxial antenna , telecommunications , engineering , microstrip antenna , mathematics , geometry , art , literature

A dual circularly polarized (CP) antenna is proposed in this paper. By employing suspended strip line to feed the patch at the two diagonal positions with 90 ◦ phase difference, single circular polarization is firstly obtained. Then dual circular polarization is excited by an L-shaped strip. The two feeding ports near the edges of the L-shaped strip arms provide the conversion between left-hand circular polarization (LHCP) and right-hand circular polarization (RHCP). Measured results show that the proposed antenna has 10-dB return loss bandwidth of 30.5% (2.08-2.83 GHz), 10-dB isolation bandwidth of 15.7% (2.29-2.68 GHz), 3-dB axial ratio (AR) bandwidth of 25.1% (2.16-2.78 GHz).

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