Journal of Systems Engineering and Electronics
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Hongmei Liu, Shaojun Fang*, and Zhongbao Wang
Online:
Published:
Abstract:
A novel dual-band antenna is proposed for mitigating the multi-path interference in the global navigation satellite system (GNSS) applications. The radiation patches consist of a shortedannular-ring reduced-surface-wave (SAR-RSW) element and an inverted-shorted-annular-ring reduced-surface-wave (ISAR-RSW)element. One key feature of the design is the proximity-coupled probe feeds to increase impedance bandwidth. The other is the defected ground structure band rejection filters to suppress the interaction effect between the SAR-RSW and the ISAR-RSW elements. In addition, trans-directional couplers are used to obtain tight coupling. Measurement results indicate that the antenna has a larger than 10 dB return loss bandwidth and a less than 3 dB axial-ratio (AR) bandwidth in the range of (1.164 – 1.255) GHz and (1.552 – 1.610) GHz. The gain of the passive antenna in the whole operating band is more than 7 dBi.
Key words: active antenna, dual-band antenna, multi-path interference
Hongmei Liu, Shaojun Fang, and Zhongbao Wang. Novel dual-band antenna for multi-mode GNSS applications[J]. Journal of Systems Engineering and Electronics, doi: 10.1109/JSEE.2015.00003.
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URL: https://www.jseepub.com/EN/10.1109/JSEE.2015.00003
https://www.jseepub.com/EN/Y2015/V26/I1/19