Design of a triple-band dual circularly polarized noncentralized microstrip antenna

Siyan Li; Shaobin Liu; Lingbing Kong

doi:10.1117/12.3054646

20 January 2025 Design of a triple-band dual circularly polarized noncentralized microstrip antenna

Siyan Li, Shaobin Liu, Lingbing Kong

Author Affiliations +

Proceedings Volume 13515, Fourth International Conference on Advanced Manufacturing Technology and Electronic Information (AMTEI 2024); 135150C (2025) https://doi.org/10.1117/12.3054646
Event: 4th International Conference on Advanced Manufacturing Technology and Electronic Information (AMTEI 2024), 2024, Chongqing, China

Abstract

An innovative design for a tri-band dual circularly polarized microstrip antenna is presented in this study. The structure utilizes a dual-layer metallic patch design, integrating single-point feed and perturbation techniques. Tri-band circular polarization is achieved through the employment of chamfered edges and the incorporation of small stubs in the design. A compact structure and high radiation gain are boasted by the resulting antenna. The simulated -10 dB reflection bandwidths are 3.48% (1608-1665 MHz), 1.31% (1672-1694 MHz), and 0.52% (1733-1742 MHz). The frequency ranges where the axial ratio is less than 3 dB are 1614-1628 MHz, 1682-1687 MHz, and 1733-1739 MHz, all falling within the effective impedance bandwidth, where the reflection coefficient is less than -10 dB. Additionally, a peak gain of 5.84 dBi is demonstrated by the antenna within the 3 dB axial ratio bands, showcasing its effectiveness for applications requiring compact and high-performance antenna solutions.

(2025) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Siyan Li, Shaobin Liu, and Lingbing Kong "Design of a triple-band dual circularly polarized noncentralized microstrip antenna", Proc. SPIE 13515, Fourth International Conference on Advanced Manufacturing Technology and Electronic Information (AMTEI 2024), 135150C (20 January 2025); https://doi.org/10.1117/12.3054646

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