2-18 GHz dual-polarised tightly coupled dipole array with ±75° scanning range

被引：2

作者：

Zhou, Wen-Liang ^{[1
]}

Qu, Shi-Wei ^{[1
]}

Xia, Mingyao ^{[2
]}

Yang, Shiwen ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China UESTC, Sch Elect Sci & Engn, Chengdu, Peoples R China

[2] Peking Univ, Sch Elect, Beijing, Peoples R China

来源：

IET MICROWAVES ANTENNAS & PROPAGATION | 2023年 / 17卷 / 14期

基金：

中国国家自然科学基金;

关键词：

antenna arrays; antenna radiation patterns; ultra wideband antennas; ULTRAWIDEBAND;

D O I：

10.1049/mia2.12411

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：

The authors proposed an ultrawideband (UWB) dual-polarised tightly coupled dipole array (TCDA). A split X-shaped resistive frequency selective surface (FSS) is utilised, which can get more admirable impedance matching. The proposed antenna can achieve active voltage standing wave ratio (VSWR) below 2.9 when scanning up to +/- 75 degrees and +/- 60 degrees in the E and H planes from 2 to 18 GHz, respectively. Furthermore, two rectangular patches served as directors are designed, which can provide stronger forward radiation to reduce the loss of resistive FSS for radiation efficiency. As a result, the average radiation efficiency is above 84% and the lowest radiation efficiency is 70%. Moreover, the overall antenna profile is 15 mm (0.1 lambda at the largest working wavelength). To validate the design method, a 16 x 16 array prototype is fabricated and measured. Good agreement is achieved between the simulations and measurements.

引用

页码：1033 / 1041

页数：9