Compact circularly polarized antenna with wide axial ratio bandwidth using modified quasi-self-complementary structure
Published online by Cambridge University Press: 26 July 2018
Abstract
A compact circularly polarized antenna with wide axial ratio bandwidth (ARBW) using quasi-self-complementary (QSC) structure is presented. A 3-dB ARBW is achieved by shortening the ground plane of the QSC structure. Furthermore, the wide ARBW is obtained by the introduction of a stepped stub in the extended ground plane of the QSC structure. The antenna is fabricated on a FR4 substrate with the overall dimensions of 25 mm × 22 mm × 0.8 mm. The proposed antenna has an impedance bandwidth of 5.9 GHz (2.4–8.3 GHz, 110%) and 3 dB ARBW of 1.6 GHz (2.4–4 GHz, 50%). A peak gain of 1–3 dBi is observed within the 3 dB ARBW.
- Type
- Research Papers
- Information
- International Journal of Microwave and Wireless Technologies , Volume 11 , Issue 1 , February 2019 , pp. 35 - 40
- Copyright
- Copyright © Cambridge University Press and the European Microwave Association 2018
References
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