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

Document Type : Research Paper

Authors

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

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

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

Main Subjects

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History

  • Receive Date: 27 February 2024
  • Revise Date: 17 April 2024
  • Accept Date: 01 July 2024

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