A Compact Broadband Circularly Polarized Slot Antenna With Two Linked Rectangular Slots and an Inverted-F Feed Line

Gyasi, Kwame Oteng; Wen, Guangjun; Inserra, Daniele; Affum, Emmanuel Ampoma; Huang, Yongjun; Li, Jian; Basit, Muhammad Abdul; Zhang, Haobin

doi:10.1109/tap.2018.2867020

Cited by 31 publications

(6 citation statements)

References 11 publications

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“…For further improvement of IBW and ARBW, in Ant.6 a horizontal rectangular slot is placed on the right edge of the right CPW ground to support vertical and horizontal surface currents on the right CPW ground . The final IBW and ARBW of the simulated antenna are depicted in Figure A,B, respectively.…”

Section: Antenna Design and Analysismentioning

confidence: 99%

A compact broadband coplanar waveguide fed circularly polarized printed monopole antenna with asymmetric modified ground plane

Alsariera

Zakaria

Isa

et al. 2020

Int J RF Microw Comput Aided Eng

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In this communication, a broadband circularly polarized (CP) monopole antenna with coplanar waveguide (CPW) feeding is proposed. It consists of a modified rectangular monopole, an asymmetric ground plane, a two‐linked inverted L‐shaped strips on the left CPW ground, and two rectangular horizontal slots in asymmetric CPW ground plane. The overall dimension is only 0.47λ o × 0.47λ o. The antenna prototype has been fabricated. The measured results indicate that a broad −10 dB impedance bandwidth (IBW) of 107.5% (4.3 GHz, 1.85‐6.15 GHz) and a broad 3 dB axial ratio ARBW of 104.3% (4 GHz, 1.855‐5.9 GHz) can be achieved; the average realized gain is 2.3 dBi for the entire CP band. The proposed antenna is an attractive candidate for several wireless communication systems.

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Section: Antenna Design and Analysismentioning

confidence: 99%

A compact broadband coplanar waveguide fed circularly polarized printed monopole antenna with asymmetric modified ground plane

Alsariera

Zakaria

Isa

et al. 2020

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

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“…In reference 4, a U‐shaped microstrip feedline is used to enhance the impedance bandwidth (IBW) and axial ratio bandwidth (ARBW). In reference 5, the antenna achieves a broadband CP by employing a two‐linked rectangular slots configuration with a simple inverted‐F‐shaped feedline. In reference 6, a hexagonal slot with meander tips and parasitic patch is employed to obtain a wide CP bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Compact broadband circularly polarized slot antenna with artificial magnetic conductor reflector

Han

Chai

Han

et al. 2022

Int J RF Mic Comp-Aid Eng

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A compact broadband circularly polarized slot antenna for Sub-6G applications is proposed in this article. It is composed of a broadband slot antenna exited by a Γ-shaped microstrip feedline and an artificial magnetic conductor (AMC) reflector with a wide in-phase reflection phase bandwidth. A unidirectional circularly polarized radiation is achieved by using the AMC reflector consisting of 6 Â 6 modified Jerusalem cross unit cells. A prototype of the proposed antenna is fabricated. The impedance bandwidth and axial ratio bandwidth of the antenna is 40.78% (3.26-4.93 GHz) and 39.02% (3.3-4.9 GHz), respectively.

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“…These antennas have significantly improved the impedance bandwidth and axial ratio bandwidth of the antenna by continuously adjusting the ground slot and the shape of the radiator, as well as the relative position of the them. [20][21][22][23][24][25][26] made full use of the broadband characteristics of monopole patch antennas, irregularly-shaped slots which could excite circularly polarized waves, and the coupling of slots generated by appropriate branches to complete antennas design. However, these antennas have never been able to balance the antenna bandwidth and gain.…”

Section: Introductionmentioning

confidence: 99%

Miniaturized broadband circularly polarized slot antenna with good gain characteristics

Tang

Zhu

Xie

et al. 2021

IEICE Electron. Express

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A broadband circularly polarized(CP) flower-shaped slot antenna is presented and experimentally studied in this paper. Circular polarization radiation is achieved by a flower-shaped(composed of six ellipses) slot of this antenna. And the irregularly shaped patch with a stub in the center of the slot provides a broad impedance and axial ratio bandwidth. After the prototype is manufactured and tested, it is shown that the measurement results are consistent with the simulation results. The measured results indicate that the proposed antenna has a 3-dB axial ratio bandwidth(ARBW) of 50.7% (from 1.68 to 2.82 GHz) at a CP center frequency of 2.2 GHz, and a wide -10-dB impedance bandwidth(IBW) of 67.0% (from 1.62 to 3.25 GHz). The antenna occupies an overall volume of 0.28 ×0.28 ×0.005 ( is the free-space wavelength at f , f =1.68 GHz). And the gain values fluctuate slightly within 1.68 to 2.82 GHz, and the variation is less than 0.5 dBic. In particular, the gain at low frequencies is outstanding compared with similar antennas.

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A Compact Broadband Circularly Polarized Slot Antenna With Two Linked Rectangular Slots and an Inverted-F Feed Line

Cited by 31 publications

References 11 publications

A compact broadband coplanar waveguide fed circularly polarized printed monopole antenna with asymmetric modified ground plane

A compact broadband coplanar waveguide fed circularly polarized printed monopole antenna with asymmetric modified ground plane

Compact broadband circularly polarized slot antenna with artificial magnetic conductor reflector

Miniaturized broadband circularly polarized slot antenna with good gain characteristics

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