Simulation analysis of k-band coaxial-fed microstrip antenna structure

The patch shape of microstrip patch antenna is an important factor affecting the performance of the antenna, in order to make the microwave antenna miniaturization, high gain performance requirements, respectively, k-band operating frequency at 24GHz rectangular and circular coaxial fed microstrip antenna simulation, compare the performance and size of the circular and rectangular microstrip antenna, the dielectric substrate using Rogers 4350, the dielectric constant of 3.66, the thickness of substrate is 0.5mm. The simulation results show that the circular coaxial fed microstrip antenna operating at 24GHz is superior to the rectangular microstrip antenna in terms of size and performance, and this structure can be used in the development of small microwave sensors for the transmission and reception of microwave signals.