Twice-band irregular rectangular cut-in microstrip patch antenna for microwave communication

A single layer, single feed compact slotted patch antenna is thoroughly simulated in this paper. Resonant frequency has been reduced drastically by cutting two irregular rectangular slots from the conventional microstrip patch antenna. It is shown that the simulated results are in acceptable. More importantly, it is also shown that the differentially-driven microstrip antenna has higher gain of simulated 3.57 dBi at 9.75 GHz and 1.14 dBi at 13.4⁰ GHz and beamwidth of simulated 163.51⁰ at 9.75 GHz and 145.430 at 13.40 GHz of the single-ended microstrip antenna. Simulated antenna size has been reduced by 49.89% with an increased frequency ratio when compared to a Conventional microstrip patch antenna.