Dual band dual circularly polarized patch antenna for Ku-band applications

This paper proposes a duplex antenna, with four square patches to form a sequential rotating array, which can generate dual circular polarization radiation. A feeding network consisting of power dividers, phase shifters and couplers feeds the antenna with ±90° phase difference and achieves dual circ...

Full description

Saved in:
Bibliographic Details
Published inInternational journal of electronics and communications Vol. 175; p. 155107
Main Authors Yan, Qi-Bo, Wei, Liu-Yu, Xie, Ze-Ming
Format Journal Article
LanguageEnglish
Published Elsevier GmbH 01.02.2024
Subjects
Dual circular polarization
Duplex antenna
Low reflection filter
Low reflection filter
Duplex antenna
Dual circular polarization
Online AccessGet full text

Cover

More Information
Summary:This paper proposes a duplex antenna, with four square patches to form a sequential rotating array, which can generate dual circular polarization radiation. A feeding network consisting of power dividers, phase shifters and couplers feeds the antenna with ±90° phase difference and achieves dual circular polarization. A band stop filter with low reflection is employed in the receive port to increase the isolation in the transmitting band (14–14.5 GHz) to over 30 dB. The receive port achieves a gain of over 4.8 dBi and an axial ratio under 3 dB in the receiving band (10.7–12.7 GHz). The transmit port has a gain of more than 5.1 dBi and a 3 dB axial ratio in the whole frequency band (10.5–15 GHz).
ISSN:1434-8411
1618-0399
DOI:10.1016/j.aeue.2023.155107