Design, Simulation, and Analysis of Microstrip Antenna Circular Patch High Efficiency for Radar Applications at 32 GHz

This research paper introduces the design and analysis of a high-efficiency circular antenna specifically developed for RADAR applications. The simulation results demonstrate the performance of a circular microstrip patch antenna operating at 32 GHz, which is well-suited for various wireless systems. The antenna designed on substrate of RT5880, with a thickness of 0.035 mm. The design procedure involved utilizing a substrate with a relative permittivity (εr) of 2.2. The substrate also had a loss tangent (tan δ) of 0.0009 and a substrate height (H) 1.575 mm. The antenna small size dimensions of 22 mm × 20 mm, a circular patch with a selected radius of 8 mm. The frequency range of the antenna extends from 22 GHz to 40 GHz. The antenna demonstrates a return loss value of − 21.6, a high very very bandwidth of 8.8 GHz a VSWR of 1.1808 a gain of 7.891 dB, and directivity of 7.897 dBi. The antenna has a high efficiency of 99.999%. Antenna designed and simulated utilizing CST Studio Suite software for radar applications.