Wideband millimeter-wave substrate integrated waveguide cavity-backed antenna for satellites communications

Abstract

This paper presents a new type of wideband waveguide (SIW) cavity-backed patch antenna for millimeter wave (mmW). The antenna proposed applies to applications of 31-36 GHz Ka-band such as satellites communications. The SIW is intended with settings for particular slots. The antenna is constructed on Rogers RT5880 (lossy) with 2.2 dielectric constant, l.27 mm thickness, and 0.0009 loss tangent. It is simulated in the programming of computer simulation technology (CST) Microwave Studio. The simulated results show that the SIW antenna resonates across 31 to 36 GHz bands, which means that this new antenna covers all applications within this range. The reflection coefficients in targeting range are below 10 dB. The antenna achieves good efficiency and gain with 80% and 8.87 dBi respectively.

Effects of Substrates and Shapes of Cavities on the Gain and Directivity of a Dipole Antenna

“…It also achieved an efficiency of 80% and a gain of 8.87 dBi. This means that the antenna will work properly on the desired application [8]. Since the study utilized a cavity for their antenna, it showed that there are changes with regards to functions of the antenna.…”

Deign of Millimeter-Wave Antennas for 5G

“…The microstrip patch basically have four part which is patch, ground, substrate ad feeding part. The advantage of the microstrip patch it has small size, low profile and lightweight conformable to planar and non-planar surface [6]. The objectives of this project are to design a compact antenna for 5G.…”