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Eighth‐mode SIW based compact high gain leaky‐wave antenna
Author(s) -
Sarkar Anirban,
Sharma Abhishek,
Biswas Animesh,
Akhtar Mohammad Jaleel
Publication year - 2019
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.21611
Subject(s) - leaky wave antenna , resonator , microstrip , antenna (radio) , planar , optics , microstrip antenna , waveguide , high gain antenna , antenna gain , mode (computer interface) , optoelectronics , materials science , physics , coaxial antenna , electrical engineering , engineering , computer science , computer graphics (images) , operating system
Abstract In this article, a novel electrically small eighth‐mode substrate integrated waveguide (EMSIW) based leaky‐wave antenna (LWA) in planar environment is presented. The proposed antenna uses 1/8th mode SIW resonator which helps to improve compactness of the design while maintaining high gain and increased scanning angle. The proposed SIW cavity is excited by a 50 Ω microstrip line feeding to resonate at dominant TE 110 mode in X‐band. The dimensions of the resonators are adjusted to keep resonant mode at same frequency. The fabricated prototype is approximately 5λ 0 long. Measured results show that the proposed leaky‐wave antenna is able to operate within frequency range of 8‐10 GHz with beam scanning range of 51° and maximum gain of 13.31 dBi.