Bandwidth Enhancement Method for Low Profile E-Shaped Microstrip Patch Antennas

Author

Chen, Yikai ; Yang, Shiwen ; Nie, Zaiping

Author_Institution

Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China (UESTC), Chengdu, China

Volume

58

Issue

7

fYear

2010

fDate

7/1/2010 12:00:00 AM

Firstpage

2442

Lastpage

2447

Abstract

A simple bandwidth enhancement method for low profile E-shaped patch antennas is presented. By introducing a distributed LC circuit to the E-shaped patch antenna, a new resonant frequency close to that of the E-shaped patch is obtained, thus the bandwidth is widened. Moreover, the air thickness of the E-shaped patch antennas is reduced to only 0.0344λ₀. A prototype antenna operated at AMPS band (824-894 MHz) was fabricated and measured. Measured results show that the designed low profile antenna has an impedance bandwidth over 9% for VSWR<; 2, with a satisfactory radiation performance within the bandwidth. The proposed method is also applicable to the design of other types of low profile slot-loaded patch antennas.

Keywords

microstrip antennas; slot antennas; bandwidth 824 MHz to 894 MHz; bandwidth enhancement method; distributed LC circuit; low profile E-shaped microstrip patch antennas; low profile slot-loaded patch antennas; Antenna measurements; Bandwidth; Broadband antennas; Distributed control; GSM; Impedance; Loaded antennas; Microstrip antennas; Mobile antennas; Patch antennas; Low profile; microstrip antennas; wideband antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2010.2048850

Filename

5452981