A Feeding Technique for Wideband CP Patch Antenna Based on 90° Phase Difference Between Tapped Line and Parallel Coupled Line

Wu, Qiong‐Sen; Zhang, Xiao; Li, Zhu

doi:10.1109/lawp.2019.2920256

Cited by 24 publications

(20 citation statements)

References 17 publications

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“…Compared with, 13,15 although the unidirectional gain of the antenna in this paper is lower, it has the advantages of small physical size, large impedance fractional bandwidth and 3-dB AR bandwidth. [30][31][32] achieves circular polarization characteristics with smaller physical size and high gain, nonetheless, with lower impedance fractional bandwidth and 3-dB AR bandwidth, and more expensive substrate. The physical dimension of presented antenna in 33,34 is similar to the proposed antenna, and can achieve higher unidirectional gain, but it also has the disadvantage of high cost, inferior impedance fractional bandwidth and 3-dB AR bandwidth.…”

Section: Resultsmentioning

confidence: 99%

Compact broadband bi‐directional circularly polarized fan‐shaped patch with parasitic annular groove for S ‐band satellite applications

Duan

et al. 2022

Int J RF Mic Comp-Aid Eng

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A novel bi-directional circularly polarized (CP) antenna with low profile, real planar configuration and broad axial ratio (AR) bandwidth is presented for S-band satellite relay communication application. The designed antenna consists of four fan-shaped patches, a sequentially rotating feed network and ground plane with annular gaps. Four fan-shaped patches are directly integrated with the feed network on the same FR4 substrate for good impedance matching and compact size. To realize the two-way radiation characteristics and excellent AR bandwidth, one parasitic annular groove on the ground plane is designed. The sequential rotation feeding network can provide good port characteristics within the available bandwidth and good AR. The properties of designed antenna was tested to validate its simulation. The final prototype is 83 Â 83 Â 0.8 mm 3 in size and it can generate a broad impedance bandwidth for voltage standing wave ratio (VSWR) <2 of 36.6% (2.32-3.36 GHz), 3-dB AR bandwidth of 21.3% (2.6-3.22 GHz) and gain over 5.4 dB in the bi-directional direction. The miniaturization, low-cost and good CP radiation for this proposed antenna make it a better candidate for future applications in the field of spacecraft relay communication.

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Section: Resultsmentioning

confidence: 99%

Compact broadband bi‐directional circularly polarized fan‐shaped patch with parasitic annular groove for S ‐band satellite applications

Duan

et al. 2022

Int J RF Mic Comp-Aid Eng

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show abstract

“…Although the multi-port CP antennas have a wide CP bandwidth, they usually need a large size and extra feeding network. 15,16 In practical application, the wide beam-width CP antenna can realize wide signal coverage and wide angle radiation, 17 so it is very suitable for indoor/urban wireless communication scenarios. To realize the wide beam-width operation, parasitic patch/extra reflector/thick substrate/dimension reduction were adopted.…”

Section: Introductionmentioning

confidence: 99%

“…The wideband crossed dipole CP antennas with high profiles are researched in References 13 and 14 and they are more suitable for outdoor base station applications. Although the multi‐port CP antennas have a wide CP bandwidth, they usually need a large size and extra feeding network 15,16 . In practical application, the wide beam‐width CP antenna can realize wide signal coverage and wide angle radiation, 17 so it is very suitable for indoor/urban wireless communication scenarios.…”

Section: Introductionmentioning

confidence: 99%

Metamaterial‐based, compact, wide beam‐width circularly polarized antenna for 5G indoor application

Wang

Liang

Dong

2021

Micro & Optical Tech Letters

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This paper describes a metamaterial-based miniaturized circularly polarized (CP) antenna with high radiation efficiency and wide beam-width or coverage for 5G indoor application. A novel meta-resonator is first proposed, which is investigated by transmission line and equivalent circuit models. By exploring a split-ring resonator-like metaresonator structure, a high-Q LC resonator tank is formed. Substantial size reduction and a wide beam-width are achieved. Owing to a uniform field on these multiple capacitive gaps incorporated on this meta-resonator surface, enhanced aperture efficiency and gain are obtained. It is partly inspired by the classical metasurface-based antenna. For validation, a miniaturized CP antenna with a size of 0.29 λ 0 × 0.29 λ 0 × 0.04 λ 0 (where, λ 0 is the free-space wavelength at 3.55 GHz) is fabricated and measured. The fabricated antenna achieves a good bandwidth of 3.30-3.80 GHz that well covers 5G-N78 band, a peak radiation gain of 5.4 dBic, a high radiation efficiency of 90% and a wide half-power beam-width of 91 . It exhibits the merits of compact size, good bandwidth and beam-width, high efficiency, and low-cost, demonstrating good potential in miniaturized 5G indoor systems demanding wide-beam coverage.

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“…As we known, to design a circularly polarized antenna, two orthogonal resonant modes with a 90-degree phase difference must be simultaneously excited [8]. In [9], a single-feed CP antenna was presented based on phase difference between tapped line and parallel coupled line. A CP antenna with folded ground element was designed in [10], in which the antenna was fed by two ports feeding network.…”

Section: Introductionmentioning

confidence: 99%

A Compact Hollow Dual Circularly Polarized Antenna With Folded Coupled Feed Structure for Distance Detection Application

Ding

Geng-lu³

et al. 2020

IEEE Access

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A wideband and dual circular polarization hollow patch antenna fed by a tapered fold coupled structure is presented for distance detection application. The proposed antenna consists of a gear-shaped ring radiation patch etched on a three-layer dielectric substrate, four tapered folded feedlines, a ring ground plane and a feeding network. To achieve right-handed circular polarization (RHCP) and left-handed circular polarization (LHCP) characteristics, four hybrids are employed. The proposed hollow antenna can be seamlessly integrated and installed under the cover of sharp shaped aerobat without effect on its flight characteristics. As a proof-of-concept, an antenna working at 1.8 GHz is prototyped and tested. The measured and simulated results show that the proposed antenna exhibits a wide impedance bandwidth of 270 MHz (1.695-1.965 GHz) and a wide 3-dB axial ratio (AR) beamwidth of 140 degree.

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A Feeding Technique for Wideband CP Patch Antenna Based on 90° Phase Difference Between Tapped Line and Parallel Coupled Line

Cited by 24 publications

References 17 publications

Compact broadband bi‐directional circularly polarized fan‐shaped patch with parasitic annular groove for S ‐band satellite applications

Compact broadband bi‐directional circularly polarized fan‐shaped patch with parasitic annular groove for S ‐band satellite applications

Metamaterial‐based, compact, wide beam‐width circularly polarized antenna for 5G indoor application

A Compact Hollow Dual Circularly Polarized Antenna With Folded Coupled Feed Structure for Distance Detection Application

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