High-Efficiency Slot Array Antenna Fed by a Microstrip Line to ESIW Transition for X-band Applications

Parsa, Ahmad; Rezaei, Pejman; Amne Elahi, Ali; Mousavirazi, Zahra

doi:10.22075/mseee.2024.33391.1150

High-Efficiency Slot Array Antenna Fed by a Microstrip Line to ESIW Transition for X-band Applications

Document Type : Research Article

Authors

Ahmad Parsa ¹

Pejman Rezaei ¹

Ali Amne Elahi ¹

Zahra Mousavirazi ²

¹ Electrical and Computer Engineering Faculty, Semnan University, Semnan, Iran.

² Institut National de la Recherche Scientifique, University of Quebec, Montreal, QC, Canada.

10.22075/mseee.2024.33391.1150

Abstract

In this manuscript, a planar slot array antenna with an innovative method is designed at a 10 GHz centrecentre frequency. The designed antenna is manufactured on PCB. In this antenna, the input power enters the microstrip line, then this power enters the empty SIW (ESIW) structure via transition and then this structure fed the eight radiation slots on the antenna. The geometry of the ESIW structure is designed as a tapered substrate, which eliminates the interference effects of higher-order modes with the dominant mode, thus providing extreme antenna radiation power. The techniques used in feeding the radiation elements have acceptable effects on the impedance bandwidth and radiation efficiency. The designed antenna feeding bandwidth is 2 GHz, also the antenna fractional bandwidth is 7.5%. All simulations were performed using CST Studio Suite software. The antenna radiation gains and efficiency are 13.8 dB and about 92% at 10 GHz, respectively. The configured antenna dimension is 222.75 × 40 × 4.4 mm³.

Keywords

Microstrip

tapered substrate

slot array antenna

substrate integrated waveguides (SIW)

Empty SIW

via transition

Subjects

Communication System

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