WIDEBAND CIRCULARLY POLARIED CROSS BOWTIE DIPOLE ANTENNA WITH AXIAL-RATIO BANDWIDTH ENHANCEMENT | Zendy

D. Wu | Zendy; Zhiya Zhang | Zendy; LuYang Ji | Zendy; Long Yang | Zendy; Guang Fu | Zendy; Xiaowei Shi | Zendy

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WIDEBAND CIRCULARLY POLARIED CROSS BOWTIE DIPOLE ANTENNA WITH AXIAL-RATIO BANDWIDTH ENHANCEMENT

Author(s) -

D. Wu,

Zhiya Zhang,

LuYang Ji,

Long Yang,

Guang Fu,

Xiaowei Shi

Publication year - 2017

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 34

ISSN - 1937-8718

DOI - 10.2528/pierc17011503

Subject(s) - wideband , bandwidth (computing) , physics , axial ratio , dipole , dipole antenna , optics , acoustics , antenna (radio) , circular polarization , electrical engineering , telecommunications , engineering , microstrip , quantum mechanics

A wideband circularly polarized (CP) cross-dipole antenna is proposed for wireless applications. In this design, four parasitic square patches are utilized around the radiation patch to enhance the Axial-ratio (AR) bandwidth. By employing the bowtie-shape dipoles, the proposed antenna can achieve a wide impedance bandwidth. Meanwhile, by integrating with a curved-delay line which provides a 90◦ phase difference, the proposed antenna can radiate a CP pattern. A prototype is calculated, fabricated, and measured. Good agreement between the simulated and measured results is achieved. The measured results show an impedance bandwidth for VSWR ≤ 2 of 47.73% (1.93– 3.14 GHz) and a 3-dB AR bandwidth of 42.8% (2.00–3.09 GHz).

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