Microstrip-Fed Ring Slot Antenna Design With Wideband Harmonic Suppression

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 sup...

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Bibliographic Details
Published inIEEE transactions on antennas and propagation Vol. 62; no. 9; pp. 4828 - 4832
Main Authors Sim, Chow-Yen-Desmond, Ming-Hsuan Chang, Bo-Yu Chen
Format Journal Article
LanguageEnglish
Published New York IEEE 01.09.2014
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Antenna measurements
Antennas
Bandwidth
Circularity
Defected ground structure (DGS)
Excitation
Grounds
Harmonic analysis
harmonic suppression
Harmonics
Microstrip
Microstrip antennas
microstrip-fed
Power harmonic filters
ring slot antenna
Slot antennas
Wideband
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Summary: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.
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ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2014.2330595