Dual-band Circularly-polarized Millimeter-wave Substrate Integrated Waveguide Slot Antenna Array with a Small Frequency Ratio

被引：0
|
作者：
Li, Jianxing [1 ]
Yu, Xiaoyan [1 ]
Wu, Sifan [1 ]
Yan, Sen [1 ]
Xu, Kai-Da [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Informat & Commun Engn, Xian 710049, Peoples R China
来源：
APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL | 2024年 / 39卷 / 10期
基金：
国家重点研发计划;
关键词：
Index Terms - Circularly-polarized (CP) antenna; dual-; band; slot antenna; small frequency ratio (FR); substrate integrated waveguide (SIW); STACKED PATCH ANTENNA;
D O I：
10.13052/2024.ACES.J.391008
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
- In this paper, a 4x4 dual-band circularlyslot antenna array with a small frequency ratio (FR) is investigated in the Ka-band. The proposed antenna array achieves the small FR by radiating two highorder modes, i.e. TM130 and TM230, with close resonant frequencies. To realize CP performance, a sequential rotated feeding (SRF) network is used to design a 2x2 subarray. A 4x4 CP antenna array is further developed to enhance the directivity. Measured results show the 10 dB) of 27.35-27.96 GHz at the lower band and 29.6230.58 GHz at the higher band with an FR of only 1.1. The measured 3-dB axial-ratio (AR) bandwidths are obtained as 27.66-27.78 GHz and 30.34-30.45 GHz with righthanded circularly-polarized (RHCP) peak gains of 16.9 and 16.8 dBi, respectively. The proposed antenna array is a potential candidate for millimeter-wave communication systems.
引用
收藏
页码：901 / 907
页数：7
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