Design of a Multifrequency One-Quarter-Rings Microstrip Antenna

Author

Jianbin Zhang ; Yuanxin Li ; Zhixi Liang ; Shaoyong Zheng ; Yunliang Long

Author_Institution

Dept. of Electron. & Commun. Eng., Sun Yat-sen Univ., Guangzhou, China

Volume

14

fYear

2015

fDate

2015

Firstpage

209

Lastpage

212

Abstract

A novel multifrequency one-quarter-rings microstrip antenna is presented in this letter. The proposed antenna consists of two one-quarter rings in different sizes, with an inverted T-shaped slot loaded. The T-shaped slot is used to suppress the higher-order mode. The relationship of the resonant frequency f with different physical size parameters for the single one-quarter-ring microstrip antenna is also reported, and it contributes to the antenna design. The resonant frequencies of the multifrequency antenna are determined by the size of the one-quarter rings. The experimental results show that the proposed antenna operates at 0.9, 1.4, 1.8, and 2.4 GHz, respectively. The radiation patterns at different resonant frequencies are similar.

Keywords

UHF antennas; microstrip antennas; multifrequency antennas; slot antennas; antenna radiation pattern; frequency 0.9 GHz; frequency 1.4 GHz; frequency 1.8 GHz; frequency 2.4 GHz; higher-order suppression mode; inverted T-shaped slot loading; multifrequency one-quarter-ring microstrip antenna; physical size parameter; single one-quarter-ring microstrip antenna; Antenna measurements; Antenna radiation patterns; Microstrip; Microstrip antennas; Resonant frequency; Microstrip antenna; T-shaped slot; multifrequency; one-quarter ring;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2360412

Filename

6910229