Low profile Substrate Integrated Waveguide (SIW) wideband antenna for Ku-band Applications

Abstract

For wireless applications, a low-profile circular slot with a substrate integrated waveguide (SIW) antenna is given. For bandwidth augmentation, the proposed antenna structure consists of a microstrip antenna with two circular-shape slots etched on the top of the radiation plane and stacked one on top of the other. An FR-4 substrate with a dielectric constant of 4.3 and a thickness of 1.5 mm was used to create this antenna. The optimised antenna design has a 13.2 GHz operating frequency, a 4.913 percent bandwidth, and a peak gain of roughly 6.05 dB over the operating frequency, making it appropriate for wireless communication applications with good matching characteristics. CST Microwave Studio is used to compute the design model and performance evaluation of a proposed antenna..