Microstrip-Fed Ring Slot Antenna Design With Wideband Harmonic Suppression

Author

Sim, Chow-Yen-Desmond ; Ming-Hsuan Chang ; Bo-Yu Chen

Author_Institution

Dept. of Electr. Eng., Feng Chia Univ., Taichung, Taiwan

Volume

62

Issue

9

fYear

2014

fDate

Sept. 2014

Firstpage

4828

Lastpage

4832

Abstract

A microstrip-fed circular ring slot antenna (CRSA) with a fundamental mode at 2.45 GHz is initially studied. To suppress the additional harmonic modes excited by the ring slot, a single inverted U-shaped slot (or defected ground structure, DGS) is integrated into the CRSA. Through this, harmonic suppression over a wide bandwidth (approximately between 3 and 9 GHz) is achieved. This DGS can also be applied to other microstrip-fed ring slot antennas, such as square and triangular ring slot antennas.

Keywords

UHF antennas; defected ground structures; microstrip antennas; slot antennas; CRSA; DGS; defected ground structure; frequency 2.45 GHz; microstrip-fed circular ring slot antenna; single inverted U-shaped slot; square ring slot antennas; triangular ring slot antennas; wideband harmonic suppression; Antenna measurements; Harmonic analysis; Microstrip; Microstrip antennas; Power harmonic filters; Slot antennas; Defected ground structure (DGS); harmonic suppression; microstrip-fed; ring slot antenna;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2014.2330595

Filename

6832498