Title of article :
A Capacitive Fed Microstrip Patch Antenna with Air Gap for Wideband Applications
Author/Authors :
Fakharian, M. M Department of Electrical and Computer Engineering - Semnan University , Rezaei, P Department of Electrical and Computer Engineering - Semnan University , Azadi, A Department of Electrical and Computer Engineering - Semnan University , Dadras, M. R Department of Electrical and Computer Engineering - Semnan University
Abstract :
In this paper a microstrip antenna on a suspended substrate with capacitive feed is presented. capacitive feed is created by a slot within the rectangular patch around the feed point. The proposed antenna exhibits a much higher impedance bandwidth of about 47% (S11 < −10 dB). Effects of key design parameters such as the air gap between the substrate and the ground plane, the gap width between radiator patch and feed point, and the location of the feed point on the input characteristics of the antenna have been investigated and discussed. A prototype of the antenna is also fabricated and tested, to verify the design. Measured characteristics of the antenna are in good agreement with the simulated results
Farsi abstract :
در اين مقاله يك آنتن مايكرواستريب بر روي زيرلايه‌اي معلق با تغذيه خازني ارائه شده است. تغذيه خازني بواسطه يك شكاف داخل پچ مستطيلي اطراف نقطه تغذيه ايجاد شده است. آنتن پيشنهاد شده يك پهناي‌باند امپدانسي در حدود 47% (S11<-10dB) نشان مي‌دهد. اثرات پارامترهاي مهم طراحي مانند: فاصله هوايي بين زيرلايه و صفحه زمين، ضخامت شكاف بين پچ تشعشع كننده و نقطه تغذيه، و موقعيت نقطه تغذيه بر مشخصه ورودي آنتن بررسي و بحث شده است. همچنين يك نمونه اوليه از آنتن ساخته و تست شده است. مشخصه‌هاي انداه‌گيري شده از آنتن با نتايج شبيه‌سازي شده تطابق خوبي دارند.
Keywords :
Microstrip patch antenna , capacitive fed , suspended , wideband
Journal title :
Astroparticle Physics
