Bandwidth Enhancement Using Z-Shaped Defected Ground Structure for a Microstrip Antenna

Bandwidth Enhancement Using Z-Shaped Defected Ground Structure for a Microstrip Antenna

ABSTRACT A novel design of a circular patch antenna having Z‐shaped defected ground structure is presented in this communication. The antenna is designed for X‐band applications. A wideband is obtained in the X‐band frequency range 8–12 GHz. The return loss and input impedance is measured experiment...

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Veröffentlicht in:Microwave and optical technology letters 2013-10, Vol.55 (10), p.2251-2254
Hauptverfasser: Kandwal, Abhishek, Sharma, Rakesh, Kumar Khah, Sunil
Format: Artikel
Sprache:eng
Schlagworte:
Bandwidth
defected ground
Frequency ranges
Grounds
Impedance
microstrip antenna
Microwaves
Noise levels
Reproduction
X-band
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Zusammenfassung:ABSTRACT A novel design of a circular patch antenna having Z‐shaped defected ground structure is presented in this communication. The antenna is designed for X‐band applications. A wideband is obtained in the X‐band frequency range 8–12 GHz. The return loss and input impedance is measured experimentally and compared with the simulated results. Parameters like impedance bandwidth, voltage standing wave ratio, and antenna gain are calculated and discussed. Impedance bandwidth of about 1.2 GHz is obtained with a gain of 8.7 dBi and side lobe level of −20.1 dB. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2251–2254, 2013
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.27836