A Broadband Proximity-Coupled Stacked Microstrip Antenna With Cavity-Backed Configuration

Author

Sun, Dan ; Dou, Wenbin ; YoU, Lizhi ; Yan, Xuequan ; Shen, Rong

Author_Institution

State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

1055

Lastpage

1058

Abstract

A broadband cavity-backed proximity-coupled stacked microstrip antenna is presented. Due to the interaction of the two stacked patches, two associated resonances are produced. Unlike conventional proximity-coupled or cavity-backed microstrip antennas, the lower patch and the cavity of this antenna produce the coupled resonances. These devised methods make the antenna act as multiple resonances, conducing to a broadband impedance matching. The simulated and the measured results demonstrate a bandwidth over one octave (VSWR <; 2). In the meantime, stable radiation patterns are obtained across the entire impedance band. The key parameters of the antenna are studied, and a prototype antenna that has a three-dimensional interconnection structure is provided.

Keywords

antenna radiation patterns; broadband antennas; impedance matching; microstrip antennas; 3D interconnection structure; antenna radiation patterns; broadband impedance matching; broadband proximity-coupled stacked microstrip antenna; cavity-backed configuration; coupled resonances; stacked patches; Bandwidth; Broadband antennas; Cavity resonators; Couplings; Microstrip; Microstrip antennas; Broad bandwidth; cavity-backed microstrip antenna; proximity-coupling; stacked patches; three-dimensional interconnection;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2169389

Filename

6026223