Investigation and Implementation of Low Side Lobe Slotted SIW Antenna Array

Abstract

In this paper, A novel (6×10) slotted substrate integrated waveguide (SIW) antenna array was designed, fabricated, and measured. The proposed antenna array consists of (1x6) combined Y-and T SIW Taylor power weighted power divider to achieve a −30 dB sidelobe level (SLL) in the E-plane. On the other plane, a 6x10 double-slot SIW antenna Has been connected to the previous power divider. The proposed slotted SIW has been weighted according to Taylor distribution to accomplish −35 dB SLL. The combined power divider has a wide operating frequency from 8 to 10 GHz, furthermore equal phase among this band. In addition to that, a stable amplitude difference has been accomplished. For the slotted column, a wide 8.2 to 9.7 has been investigated unlike the conventional standing wave antenna regarding the multi-slot technique to broadening the operating bandwidth. The whole array −25, and −29 dB for E-plane, and H-plane respectively has been achieved with 16 o half power beamwidth and 16 dBi gain.