Bi‐directional SIW leaky‐wave antenna using TE20 mode for frequency beam scanning. Issue 15 (1st July 2017)

• Record Type: Journal Article
• Authors: Sarkar, A.; Sharma, A.; Adhikary, M.; Biswas, A.; Akhtar, M.J.
• Is Part Of: Electronics letters. Volume 53:Issue 15(2017)
• Page Start: 1017
• Page End: 1019
• Publication Date: 2017-07-01
• Subjects: substrate integrated waveguides -- microstrip antennas -- power dividers -- slot lines -- microstrip lines -- antenna radiation patterns -- electric fields -- slot antennas; bidirectional SIW leaky‐wave antenna -- TE20 mode -- frequency beam scanning -- compact LWA -- substrate integrated waveguide -- X‐band -- microstrip power divider‐slotline transitions -- overall radiation capability enhancement -- rectangular slots -- electric field -- bidirectional radiation -- frequency 9.6 GHz to 11.2 GHz; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2017.1280
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A compact bi‐directional leaky‐wave antenna (LWA) based on TE20 mode substrate integrated waveguide (SIW) is proposed at X‐band. The microstrip power divider–slotline transitions are utilised to excite TE20 mode SIW array in order to enhance the overall radiation capability of the designed structure. The rectangular slots are etched out on the top and bottom plane of SIW such a way that the orientation of the slots can perturb the distribution of electric field at TE20 mode and provide bi‐directional radiation. The proposed antenna is working within the frequency range of 9.6–11.2 GHz ( S 11 < −10 dB) having the beam scanning range of 66° from both top and bottom side of the structure with maximum gain of 14 dBi. All experimental results show a fair agreement with the simulated data.