Antenna Array Excited by Spoof Planar Plasmonic Waveguide

Author

Huan Yi ; Shi-Wei Qu ; Xue Bai

Author_Institution

Dept. of Microwave Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

13

fYear

2014

fDate

2014

Firstpage

1227

Lastpage

1230

Abstract

This letter presents an efficient and simple way to excite a microstrip patch antenna array in K-band. This array is formed by a spoof planar plasmonic waveguide for excitation and several circular patches for radiation. The optimized proposed 2 × 4 patch array, operating in 18.1 ~ 19.4 GHz, features an average gain of 15.2 dBi with a maximum of 16.5 dBi at 18.2 GHz. An experiment was performed, and the measured results prove validity of the design. This method opens up a new kind of feeding method for patch antenna array, which can be broadly engineered in millimeter-waves (MMW) region even to terahertz (THz) region.

Keywords

antenna feeds; circular waveguides; microstrip antenna arrays; microwave antenna arrays; planar antenna arrays; plasma devices; K-band; circular patches; feeding method; frequency 18.2 GHz; gain 15.2 dB; microstrip patch antenna array; millimeter-waves region; spoof planar plasmonic waveguide; terahertz region; Antenna arrays; Antenna measurements; Arrays; Gain; Metals; Plasmons; Surface waves; Antenna array; millimeter wave; spoof planar plasmons;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2332257

Filename

6846292