A Broadband Low-Profile Dual-Linearly Polarized Dipole-Driven Metasurface Antenna

被引：20

作者：

Liu, Guo ^{[1
]}

Sun, Xiaoshuai ^{[2
]}

Chen, Xiaoming ^{[2
]}

Xiong, Dong ^{[2
]}

Li, Mei ^{[2
]}

Tang, Ming-Chun ^{[2
]}

机构：

[1] Sci & Technol Elect Informat Control Lab, Chengdu 610036, Peoples R China

[2] Chongqing Univ, Sch Microelect & Commun Engn, Minist Educ, Key Lab Dependable Serv Comp Cyber Phys Soc, Chongqing 400044, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2020年 / 19卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Roads; Safety; Accidents; Additives; Industries; Loss measurement; Broadband; dual-linearly polarized; low-profile; metasurface antennas (MSAs); WAVE;

D O I：

10.1109/LAWP.2020.3017173

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：

A low-profile broadband metasurface antenna (MSA) with dual-linear polarization is developed. The developed MSA mainly consists of a 4 x 4 grid-slotted patch array, two pairs of orthogonally printed feeding dipole strips, two vertically grounded and orthogonally placed microstrip Gamma-shaped feeding structures, and an intact ground plane. It is demonstrated that the strip-excited MSA excites a leaky wave mode, a surface wave mode, and a dipole mode to provide a wide operational bandwidth. The prototype, with an overall size of 0.65 lambda(0) x 0.65 lambda(0) x 0.07 lambda(0) (lambda(0) is the wavelength in free space at the center operating frequency) was fabricated and measured. Three modes with broadside radiation patterns for each port are simultaneously excited to create a wide impedance bandwidth 36% with the average gain value 9.3 dBi. Moreover, the port-to-port isolation and the cross-polarization discrimination (XPD) are, respectively, higher than 26 and 25 dB.

引用

页码：1759 / 1763

页数：5

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