Microstrip Patch Antenna Design and Analysis with Varying Substrates for 5G

In the Fifth-Generation network, the mobile networking requirements are more likely to work at the millimetre wave frequency bands, which are superior to the frequency bands used in 4G networks. This paper presents the objectives of designing and optimising competent antennas based on 28 GHz and 39 GHz operating frequency bands. These two specified frequency bands form part of the FCC's defined bands for Millimetre waves band to be used for 5G operation. The goal of the project is to design rectangular shaped microstrip patch antennas using ADS Momentum. There has been a variation in terms of substrate material where three different substrate materials namely, Rogers RT Duroid 5880, FR4 and Teflon was used but initially at a constant thickness of 0.5 mm. Several antenna parameter data was acquired and further analysed. From the simulations, it is seen that the antennas resonate at frequencies somewhat drifted apart from the preferred accurate center frequency. To bring enhancements to the previously mentioned situation, a reverse analysis concerning the perfect substrate to design this specific rectangular microstrip patch antenna using an inset feed is performed. A variation in terms of substrate thickness of the latter is also carried out, so as to further study the varying effects in the return plot and the other regarding factors.