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Slot‐loaded gap‐coupled microstrip array antenna for wide impedance bandwidth
Author(s) -
Konda R. B.,
Mulgi S. N.,
Satnoor S. K.,
Hunagund P. V.
Publication year - 2007
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.22894
Subject(s) - microstrip antenna , microstrip , wideband , bandwidth (computing) , return loss , microwave , electrical impedance , patch antenna , aperture (computer memory) , engineering , antenna array , optics , electrical engineering , electronic engineering , optoelectronics , antenna (radio) , physics , acoustics , telecommunications
A novel design of four‐element gap‐coupled slot rectangular microstrip array antenna fed by aperture coupling is presented for wideband operation. From the experimental results it is seen that a −10 dB return loss impedance bandwidth of 34.17% is achieved at X‐band frequencies. This impedance bandwidth is 2.43 times more than that of conventional corporate fed four‐element gap‐coupled rectangular microstrip array antenna, which operates at triple band of frequencies. The effect of slot in the radiating and parasitic elements and use of aperture coupling is studied for converting its triple bands into a single band. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 3014–3017, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22894