Design of a Broadband High-Gain Omnidirectional Antenna With Low Cross Polarization Based on Characteristic Mode Theory

Design of a Broadband High-Gain Omnidirectional Antenna With Low Cross Polarization Based on Characteristic Mode Theory

A low-profile, high-gain, and low cross-polarization omnidirectional antenna is proposed. The antenna structure is pretty concise with convenient probe feeding and sandwich-structure design. The characteristic mode analysis shows that the antenna can excite quasi-TM01 and quasi-TM02 modes in a broad...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2022-09, Vol.21 (9), p.1747-1751
Hauptverfasser: Fu, Chen, Feng, Chunjie, Chu, Wubo, Yue, Yutao, Zhu, Xiaobo, Gu, Wenhua
Format: Artikel
Sprache:eng
Schlagworte:
Antenna design
Antenna radiation patterns
Antennas
Bandwidth
Broadband
Broadband antennas
Broadband communication
characteristic mode (CM)
Cross polarization
High gain
low cross polarization
omnidirectional antenna
Omnidirectional antennas
Probes
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Beschreibung
Zusammenfassung:A low-profile, high-gain, and low cross-polarization omnidirectional antenna is proposed. The antenna structure is pretty concise with convenient probe feeding and sandwich-structure design. The characteristic mode analysis shows that the antenna can excite quasi-TM01 and quasi-TM02 modes in a broadband and, thus, results in monopole radiation mode and low cross polarization in a broad operating band. The full-wave simulation and experiments were performed to verify the antenna design. The fabricated prototype antenna showed
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2022.3179144