Wideband Circularly Polarized Horn Antenna with Twisted Ridges of Gielis Super-Formula Contour

Kwok Wa Leung; Chu-Tian Huang; Zheng Fang; Kai Lu; Nan Yang

doi:10.1109/TAP.2024.3489891

Wideband Circularly Polarized Horn Antenna with Twisted Ridges of Gielis Super-Formula Contour

Kwok Wa Leung
, Chu-Tian Huang
, Zheng Fang
, Kai Lu^*
, Nan Yang

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

12 Citations (Scopus)

Abstract

This communication presents a wideband singly-fed circularly polarized (CP) twisted-ridge horn antenna. This horn antenna has a record-high CP operating bandwidth of 86.3%. The Gielis super formula is employed to design the twisted ridges, enhancing the axial ratio (AR) bandwidth. A new waveguide-coax launcher with a ridged back cover is incorporated to boost the impedance bandwidth. By using these new design techniques, the overlapped bandwidth of the CP horn antenna can be increased. For demonstration, a K-band CP twisted-ridge horn antenna is designed, fabricated, and experimentally evaluated. The measured 10-dB impedance bandwidth and 3-dB AR bandwidth are 90.6% (14.6-38.8 GHz) and 88.2% (15.4-39.7 GHz) respectively, giving a very wide overlapped bandwidth of 86.3% (15.4-38.8 GHz). It is found that the measured antenna gain generally increases with frequency in the operating passband.

© 2024 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.

Original language	English
Pages (from-to)	1197-1202
Journal	IEEE Transactions on Antennas and Propagation
Volume	73
Issue number	2
Online published	7 Nov 2024
DOIs	https://doi.org/10.1109/TAP.2024.3489891
Publication status	Published - Feb 2025

Funding

This work was supported in part by the Guangdong Natural Science Foundation under Grant 2024A1515010146, and in part by the General Research Fund (GRF) Grant from the Research Grants Council of Hong Kong SAR, China, under Project CityU 11217123.

Research Keywords

Circular polarization
horn antenna
ridge
super formula

RGC Funding Information

RGC-funded

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10.1109/TAP.2024.3489891

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@article{51e54d405fa34a8590ee6c6f57d8594e,

title = "Wideband Circularly Polarized Horn Antenna with Twisted Ridges of Gielis Super-Formula Contour",

abstract = "This communication presents a wideband singly-fed circularly polarized (CP) twisted-ridge horn antenna. This horn antenna has a record-high CP operating bandwidth of 86.3\%. The Gielis super formula is employed to design the twisted ridges, enhancing the axial ratio (AR) bandwidth. A new waveguide-coax launcher with a ridged back cover is incorporated to boost the impedance bandwidth. By using these new design techniques, the overlapped bandwidth of the CP horn antenna can be increased. For demonstration, a K-band CP twisted-ridge horn antenna is designed, fabricated, and experimentally evaluated. The measured 10-dB impedance bandwidth and 3-dB AR bandwidth are 90.6\% (14.6-38.8 GHz) and 88.2\% (15.4-39.7 GHz) respectively, giving a very wide overlapped bandwidth of 86.3\% (15.4-38.8 GHz). It is found that the measured antenna gain generally increases with frequency in the operating passband. {\textcopyright} 2024 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.",

keywords = "Circular polarization, horn antenna, ridge, super formula",

author = "Leung, \{Kwok Wa\} and Chu-Tian Huang and Zheng Fang and Kai Lu and Nan Yang",

year = "2025",

month = feb,

doi = "10.1109/TAP.2024.3489891",

language = "English",

volume = "73",

pages = "1197--1202",

journal = "IEEE Transactions on Antennas and Propagation",

issn = "0018-926X",

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TY - JOUR

T1 - Wideband Circularly Polarized Horn Antenna with Twisted Ridges of Gielis Super-Formula Contour

AU - Leung, Kwok Wa

AU - Huang, Chu-Tian

AU - Fang, Zheng

AU - Lu, Kai

AU - Yang, Nan

PY - 2025/2

Y1 - 2025/2

N2 - This communication presents a wideband singly-fed circularly polarized (CP) twisted-ridge horn antenna. This horn antenna has a record-high CP operating bandwidth of 86.3%. The Gielis super formula is employed to design the twisted ridges, enhancing the axial ratio (AR) bandwidth. A new waveguide-coax launcher with a ridged back cover is incorporated to boost the impedance bandwidth. By using these new design techniques, the overlapped bandwidth of the CP horn antenna can be increased. For demonstration, a K-band CP twisted-ridge horn antenna is designed, fabricated, and experimentally evaluated. The measured 10-dB impedance bandwidth and 3-dB AR bandwidth are 90.6% (14.6-38.8 GHz) and 88.2% (15.4-39.7 GHz) respectively, giving a very wide overlapped bandwidth of 86.3% (15.4-38.8 GHz). It is found that the measured antenna gain generally increases with frequency in the operating passband. © 2024 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.

AB - This communication presents a wideband singly-fed circularly polarized (CP) twisted-ridge horn antenna. This horn antenna has a record-high CP operating bandwidth of 86.3%. The Gielis super formula is employed to design the twisted ridges, enhancing the axial ratio (AR) bandwidth. A new waveguide-coax launcher with a ridged back cover is incorporated to boost the impedance bandwidth. By using these new design techniques, the overlapped bandwidth of the CP horn antenna can be increased. For demonstration, a K-band CP twisted-ridge horn antenna is designed, fabricated, and experimentally evaluated. The measured 10-dB impedance bandwidth and 3-dB AR bandwidth are 90.6% (14.6-38.8 GHz) and 88.2% (15.4-39.7 GHz) respectively, giving a very wide overlapped bandwidth of 86.3% (15.4-38.8 GHz). It is found that the measured antenna gain generally increases with frequency in the operating passband. © 2024 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.

KW - Circular polarization

KW - horn antenna

KW - ridge

KW - super formula

UR - https://www.scopus.com/pages/publications/85208975088

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85208975088&origin=recordpage

U2 - 10.1109/TAP.2024.3489891

DO - 10.1109/TAP.2024.3489891

M3 - RGC 21 - Publication in refereed journal

SN - 0018-926X

VL - 73

SP - 1197

EP - 1202

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 2

ER -

Wideband Circularly Polarized Horn Antenna with Twisted Ridges of Gielis Super-Formula Contour

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GRF: Gain Enhancement of Horn Antenna Using Novel Metal Lens

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Wideband Circularly Polarized Horn Antenna with Twisted Ridges of Gielis Super-Formula Contour

Abstract

Funding

Research Keywords

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GRF: Gain Enhancement of Horn Antenna Using Novel Metal Lens

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