Wideband and high-gain circularly polarised microstrip antenna design using sandwiched metasurfaces and partially reflecting surface

被引：18

作者：

Srivastava, Kunal ^{[1
,2
]}

Kumar, Ashwani ^{[3
]}

Chaudhary, Prashant ^{[3
,4
]}

Kanaujia, Binod K. ^{[2
]}

Dwari, Santanu ^{[1
]}

Verma, Anand K. ^{[4
,5
]}

Esselle, Karu P. ^{[6
,7
]}

Mittra, Raj ^{[6
,7
]}

机构：

[1] IIT ISM Dhanbad, Dept Elect Engn, Dhanbad, Jharkhand, India

[2] Sch Computat & Integrat Sci JNU, New Delhi, India

[3] Univ Delhi, Dept Elect, Sri Aurobindo Coll, New Delhi 110017, India

[4] Univ Delhi, Dept Elect Sci, South Campus, New Delhi 110021, India

[5] Macquarie Univ, Dept Elect, Sydney, NSW, Australia

[6] Univ Cent Florida, Dept Elect & Comp Engn, Orlando, FL 32816 USA

[7] King Abdulaziz Univ, Jeddah, Saudi Arabia

来源：

IET MICROWAVES ANTENNAS & PROPAGATION | 2019年 / 13卷 / 03期

关键词：

microwave metamaterials; metamaterial antennas; broadband antennas; impedance matching; electromagnetic wave polarisation; microstrip antennas; antenna radiation patterns; PRS-based patch antenna; low-cost substrate FR-4; 3 dB axial ratio bandwidth; peak gain varies; PRS superstrate; antenna performance; high-gain circularly polarised microstrip antenna design; sandwiched metasurfaces; partially reflecting surface; sandwiched anisotropic metasurface; linearly polarised elliptical patch antenna; wideband circularly polarised antenna; design rules; combined metasurface; noise figure 3; 0; dB; frequency; 3; 08 GHz to 4; 56; GHz; bandwidth; 1; 01; 33; gain; 7; 0 dB to 7; 84; BEAMWIDTH;

D O I：

10.1049/iet-map.2018.5061

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 study, the authors propose a new type of metasurface, namely a sandwiched anisotropic metasurface, for converting a linearly polarised elliptical patch antenna into a wideband circularly polarised antenna. A partially reflecting surface (PRS) as a superstrate is further used to enhance the gain of the antenna. The design rules of the antenna are also presented. The combined metasurface and the PRS-based patch antenna is designed on a low-cost substrate FR-4. The realised 3 dB axial ratio bandwidth (ARBW) of the antenna is 1.01 GHz (3.55-4.56 GHz), its impedance matching bandwidth is 1.33 GHz (3.08-4.41 GHz), and its peak gain varies from 7 to 7.84 dB within the band. By placing the PRS superstrate above the antenna, gain further improves to 9.32 dBi without degrading the performance of the antenna. Measured results are presented to validate the antenna performance and results are compared against a large number of similarly available antenna.

引用

页码：305 / 312

页数：8

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