Multiport Power Combining Patch Antenna with Stable Reflection Coefficient and Radiation Pattern in Six Polarization States

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)719-729
Journal / PublicationIEEE Transactions on Antennas and Propagation
Volume67
Issue number2
Early online date21 Nov 2018
Publication statusPublished - Feb 2019

Abstract

A new kind of multi-port power combining patch antenna in multiple polarization states is proposed in this paper. The proposed antenna consists of a ground, a stacked patch and a driven patch fed by four centrally-symmetric ports. Based on the S-parameter analysis of the multi-port antenna, six polarization states (0°, 90°, ±45° linear polarization (LP), and left-handed and right-handed circular polarization (RHCP, LHCP)) with stable reflection coefficients and radiation pattern can be realized by controlling the input phases of four ports. In this way, it is not necessary to use extra feeding network to realize the multiple polarization states. Moreover, in addition to radiating EM energy just like conventional antennas, the proposed multi-port antenna can also realize on-antenna power combining without the need of power combiner. As a result, the losses and size caused by extra power combiner and feeding network can be avoided. For verification, the four-port patch antennas in different polarization states are designed and compared. Moreover, a four-port antenna integrated with four power amplifiers is fabricated and measured. The results show that both on-antenna power combining and multiple polarization states can be realized without the need of power combiner and polarization feeding network.

Research Area(s)

  • Antenna feeds, multi-port antenna, Patch antenna, Patch antennas, polarization, power combining, Reflection coefficient, Reflector antennas, Scattering parameters, Substrates

Citation Format(s)

Multiport Power Combining Patch Antenna with Stable Reflection Coefficient and Radiation Pattern in Six Polarization States. / Duan, Wen; Zhang, Xiu Yin; Liao, Shaowei; Wang, Kai Xu; Xue, Quan.

In: IEEE Transactions on Antennas and Propagation, Vol. 67, No. 2, 02.2019, p. 719-729.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review