A Wideband Low Profile Horizontally Polarized Omnidirectional Antenna Loaded with Coupling Ring

Cui, Feng; Li, Xudong; Ren, Yuhui; Wu, Handong; Zhao, Jiayu

doi:10.1109/csrswtc50769.2020.9372732

Cited by 1 publication

(2 citation statements)

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Section: Introductionmentioning

confidence: 99%

“…Various studies have been conducted on horizontally polarized, omnidirectional radiation pattern antennas in the horizontal plane [1,2]. In reference [1], a capacitive loop-shaped antenna with a relative bandwidth of 27.4% and antenna element height and diameter of 0.0060 and 0.320, respectively, is considered, which correspond to a wideband and low-profile antenna with a large antenna element diameter. In reference [2], a cylindrical microstrip antenna with a miniscule antenna element height and diameter of 0.030 and 0.140, respectively, is proposed, which can only achieve a narrow relative bandwidth of 1.46%.…”

Section: Introductionmentioning

confidence: 99%

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Low-profile double-shell Halo antenna with wideband characteristic

et al. 2023

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In this study, the characteristics of a wideband, low-profile, double-shell Halo antenna is investigated. The Halo antenna is a horizontally polarized antenna with a small diameter and a relative bandwidth of about 4%, which corresponds to a narrow bandwidth characteristic. Therefore, as a conventional broadband method, it is possible to increase the bandwidth of the Halo antenna while maintaining the antenna diameter by loading parasitic elements vertically above and below. However, the disadvantage of this method is that the antenna height increases owing to vertical stacking of the elements. In this study, a double-shell structure with the parasitic elements placed inside the Halo antenna is used to achieve a relative bandwidth of 9.3% while maintaining the antenna height and diameter.

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Section: Introductionmentioning

confidence: 99%