High gain SIW cavity backed differential slot antenna for X‐band applications. Issue 24 (1st November 2018)

• Record Type: Journal Article
• Authors: Srivastava, G.; Mohan, A.
• Is Part Of: Electronics letters. Volume 54:Issue 24(2018)
• Page Start: 1361
• Page End: 1362
• Publication Date: 2018-11-01
• Subjects: microstrip antennas -- antenna feeds -- substrate integrated waveguides -- antenna radiation patterns -- slot antennas; X‐band applications -- common‐mode suppression -- microstrip feedlines -- measured differential impedance bandwidth -- CM suppression -- designed differential antenna exhibits -- high gain SIW cavity backed differential slot antenna -- differential substrate integrated waveguide antenna -- frequency 10.19 GHz to 11.03 GHz -- H; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2018.6390
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A new differential substrate integrated waveguide (SIW) antenna with good common‐mode (CM) suppression and high gain is presented. The designed antenna uses an H‐shaped slot backed by SIW cavity and is differentially excited by two microstrip feedlines from two opposite sides of the cavity. The measured differential impedance bandwidth of the proposed antenna is 10.19–11.03 GHz with CM suppression below 2 dB. The designed differential antenna exhibits a high gain of 8.7 dBi with a good front‐to‐back ratio of 21 dB.