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

被引：0

作者：

Yan, Qi-Bo ^{[1
]}

Wei, Liu-Yu ^{[1
]}

Xie, Ze-Ming ^{[1
]}

机构：

[1] School of Electronic and lnformation Engineering, South China University of Technology, Guangzhou,510641, China

来源：

AEU - International Journal of Electronics and Communications | 2024年 / 175卷

关键词：

Antenna arrays - Antenna feeders - Microstrip antennas - Microwave antennas - Notch filters - Slot antennas;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

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). © 2024 Elsevier GmbH

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