Simple-Structured Dual-Slot Broadband Circularly Polarized Antenna

Tuan Tu Le; Huy Hung Tran; Hyun Chang Park

doi:10.1109/LAWP.2018.2796608

Simple-Structured Dual-Slot Broadband Circularly Polarized Antenna

Tuan Tu Le, Huy Hung Tran, Hyun Chang Park

Department of Electronics & Electrical Engineering

Dongguk University

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

A simple-structured single-fed dual-slot broadband antenna with circularly polarized waves is presented. Two semicircular slots etched in the ground plane were used as the radiators. The slots were proximity-coupled to a 50 microstrip feedline printed on the other side of the substrate. The fabricated antenna with an overall size of 101 × 64 × 1.52 mm³ yielded a very wide-10 dB impedance bandwidth of 86.9% (3.63-9.21 GHz) and a 3 dB axial-ratio bandwidth of 74.3% (4.18-9.12 GHz). The measured antenna peak gain in the broadside direction over the axial-ratio bandwidth ranged from 3.9 to 7.3 dB. Good agreement between the simulated and measured results validates the proposed antenna.

Original language	English
Pages (from-to)	476-479
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	17
Issue number	3
DOIs	https://doi.org/10.1109/LAWP.2018.2796608
State	Published - Mar 2018

Keywords

Broadband
circular polarization (CP)
high gain
slot antenna

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10.1109/LAWP.2018.2796608

Cite this

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title = "Simple-Structured Dual-Slot Broadband Circularly Polarized Antenna",

abstract = "A simple-structured single-fed dual-slot broadband antenna with circularly polarized waves is presented. Two semicircular slots etched in the ground plane were used as the radiators. The slots were proximity-coupled to a 50 microstrip feedline printed on the other side of the substrate. The fabricated antenna with an overall size of 101 × 64 × 1.52 mm3 yielded a very wide-10 dB impedance bandwidth of 86.9% (3.63-9.21 GHz) and a 3 dB axial-ratio bandwidth of 74.3% (4.18-9.12 GHz). The measured antenna peak gain in the broadside direction over the axial-ratio bandwidth ranged from 3.9 to 7.3 dB. Good agreement between the simulated and measured results validates the proposed antenna.",

keywords = "Broadband, circular polarization (CP), high gain, slot antenna",

author = "Le, {Tuan Tu} and Tran, {Huy Hung} and Park, {Hyun Chang}",

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AU - Le, Tuan Tu

AU - Tran, Huy Hung

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N2 - A simple-structured single-fed dual-slot broadband antenna with circularly polarized waves is presented. Two semicircular slots etched in the ground plane were used as the radiators. The slots were proximity-coupled to a 50 microstrip feedline printed on the other side of the substrate. The fabricated antenna with an overall size of 101 × 64 × 1.52 mm3 yielded a very wide-10 dB impedance bandwidth of 86.9% (3.63-9.21 GHz) and a 3 dB axial-ratio bandwidth of 74.3% (4.18-9.12 GHz). The measured antenna peak gain in the broadside direction over the axial-ratio bandwidth ranged from 3.9 to 7.3 dB. Good agreement between the simulated and measured results validates the proposed antenna.

AB - A simple-structured single-fed dual-slot broadband antenna with circularly polarized waves is presented. Two semicircular slots etched in the ground plane were used as the radiators. The slots were proximity-coupled to a 50 microstrip feedline printed on the other side of the substrate. The fabricated antenna with an overall size of 101 × 64 × 1.52 mm3 yielded a very wide-10 dB impedance bandwidth of 86.9% (3.63-9.21 GHz) and a 3 dB axial-ratio bandwidth of 74.3% (4.18-9.12 GHz). The measured antenna peak gain in the broadside direction over the axial-ratio bandwidth ranged from 3.9 to 7.3 dB. Good agreement between the simulated and measured results validates the proposed antenna.

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KW - slot antenna

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Simple-Structured Dual-Slot Broadband Circularly Polarized Antenna

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Keywords

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