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Compact substrate integrated waveguide mono‐pulse antenna array
Author(s) -
Soleiman Meiguni Javad,
Khatami Seyed Amin,
AmneElahi Ali
Publication year - 2018
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21155
Subject(s) - materials science , printed circuit board , bandwidth (computing) , antenna array , optoelectronics , optics , acoustics , electrical engineering , electronic engineering , antenna (radio) , computer science , engineering , physics , telecommunications
A compact monopulse antenna array based on substrate integrated waveguide technology is presented through this article. The design is fabricated on Printed Circuit Board (PCB) technology consisting of a double‐layered 8‐cell array antenna with a slot in the middle‐ground metal used for aperture‐coupling excitation and reducing unwanted spurious emissions from feed network. The Impedance bandwidth and AR bandwidth are enhanced due to optimal feed network, including Rat‐Race coupler to generate sum and difference patterns for mono‐pulse applications operating at 10 GHz. The prototype of the proposed antenna with the size of 124*25 mm 2 is fabricated and tested. Measured results compared very well to simulation results obtained by CST microwave studio and show −10‐dB impedance bandwidth of 4% and −22 dB null‐depth in difference mode.