Miniaturized broadband circularly polarized slot antenna with good gain characteristics

Tang, Lanling; Zhu, Yongzhong; Xie, Wenxuan; Zhao, Hefeng; Peng, Tongtong; Yang, Yufei

doi:10.1587/elex.18.20210378

Cited by 4 publications

(2 citation statements)

References 30 publications

(31 reference statements)

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“…Wideband antennas have attracted great attention due to their ability of broad coverage across frequency band such as modern high-speed wireless communication systems [1,2,3,4,5]. For example, common forms for broadband antenna include dipole antenna [6 7], spiral antenna [8], log periodic antenna [9], Vivaldi antenna [10], etc.…”

Section: Introductionmentioning

confidence: 99%

A wideband dual-polarized crossed antenna with low profile and enhanced gain performance

Zhang,

Wu,

Wang

et al. 2024

IEICE Electron. Express

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A wideband dual-line polarized antenna with low-profile property is presented in this paper. The dual-polarized antenna consists of two crossed antenna elements over a metal reflector and is excited by RF connectors vertically. Here, the crossed antenna element is based on Vivaldi radiator to obtain wideband performance. By loading resistors on the patches of Vivaldi radiator, not only the impedance matching of the proposed antenna can be improved further but also the profile is reduced greatly. Whatever, the loaded resistors can also depress radiation efficiency of the antenna element to a certain extent, especially in the lower band. For this reason, three periodic slots etched on the Vivaldi radiator are introduced herein to enhance the gain performance. To verify the feasibility of the proposed design, a prototype has been fabricated and measured. The results show good performance of a relative bandwidth of 153% for VSWR ≤ 2 (2-15 GHz) and a low profile of 0.22 λL (in terms of the lowest frequency of the band). Besides, the prototype can achieve an average gain of approximately 5 dBi and a maximum radiation efficiency of 80% within passband.

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Section: Introductionmentioning

confidence: 99%

A wideband dual-polarized crossed antenna with low profile and enhanced gain performance

Zhang,

Wu,

Wang

et al. 2024

IEICE Electron. Express

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“…The CP antennas have made much progress in research and development and are widely known as the critical technologies of various wireless systems, including mobile communications, global navigation satellite systems (GNSS), wireless local area networks (WLAN) and other applications. It is because CP antennas have essential advantages over linear polarized antennas [5][6] [7][8][9] [10].…”

Section: Introductionmentioning

confidence: 99%

An improved design and implementation of a broadband and wide axial ratio beamwidth circularly polarized parallel plate antenna

Huang

Sun

et al. 2022

IEICE Electron. Express

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This paper presents an improved design and implementation of broadband circularly polarized (CP) antenna that features a broad bandwidth and wide axial ratio (AR) beamwidth. First, the relationship between the three parallel plates (rectangular, semicircular, and semielliptical) and θ is analyzed. The semielliptical parallel plates (PP) used to obtain a wider 3dB AR-beamwidth (104°×110°×102°×118° at φ= 0°, 45°, 90°, 135°, respectively) compared with rectangular and semicircular PP. Secondly, orthogonal crosses with 43° inclined are used to generate orthogonal fields, and broadband characteristics can be obtained by adjusting the arm of orthogonal crosses. The semielliptical CP-PP antenna prototype was verified by ANSYS HFSS simulation. According to the measurement results, the -10 dB return loss is about 20% . A gain of 9.22 dBic at 27 GHz and a 3 dB ARbeamwidth of 106°×105° at φ=0° and φ=90° are obtained. The designed semielliptical CP-PP antenna can be more beneficial to 5G millimeter wave applications

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Low-profile Broadband Circularly Polarized Antenna with Bending Vivaldi Elements

Xiaoyu,

Yongzhong,

Wenxuan

2023

2023 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

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Miniaturized broadband circularly polarized slot antenna with good gain characteristics

Cited by 4 publications

References 30 publications

A wideband dual-polarized crossed antenna with low profile and enhanced gain performance

A wideband dual-polarized crossed antenna with low profile and enhanced gain performance

An improved design and implementation of a broadband and wide axial ratio beamwidth circularly polarized parallel plate antenna

Low-profile Broadband Circularly Polarized Antenna with Bending Vivaldi Elements

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