Broadband circularly polarized printed falcate‐shaped monopole antenna. Issue 11 (25th August 2020)

• Record Type: Journal Article
• Authors: Xu, Bihui; Zhao, Yanwen; Gu, Li; Huang, Changbin; Nie, Zaiping
• Is Part Of: International journal of RF and microwave computer-aided engineering. Volume 30:Issue 11(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-08-25
• Subjects: broadband -- circular polarization -- planar monopole antenna -- rectangular split‐ring resonator; Microwave devices -- Computer-aided design -- Periodicals; Computer-aided engineering -- Periodicals; 621.3813
• DOI: 10.1002/mmce.22395
• Languages: English
• ISSNs: 1096-4290

Abstract

Abstract: In this study, a simple broadband circularly polarized (CP) printed monopole antenna for S/C‐band applications is proposed. The CP antenna is composed of a falcate‐shaped monopole with a right‐angle trapezoid stub, then wide impedance and axial ratio (AR) bandwidths are achieved. By placing one rectangular split‐ring resonator above the stub for generating upper CP mode, both of impedance and CP performances are further improved. The proposed antenna is fabricated on a FR4 substrate and measured. The measured −10‐dB impedance bandwidth is 107%, ranging from 2.4‐7.9 GHz, and the measured 3‐dB AR bandwidth is 94% (2.4‐6.6 GHz), covering the entire wireless local area network (WLAN) and WiMAX bands.