Research Of Microstrip Antenna And Array Antenna In Radiation And Designing

Aiming at the advantages and disadvantages of conventional microstrip antenna, this paper used FDTD to simulate the radiation pattern of microstrip antenna in gain and bandwidth. Studying the parameters of microstrip antenna in detail to get the result of gain, bandwidth, field strength and radiation directivity in E-plane as well as H-plane are given also. The results show that similar circle antenna works in 2.25 ~ 2.33 GHz, 3.51 ~ 3.7 GHz, 4.34 ~ 4.6 GHz frequency band with the highest gain of antenna up to 7.37 d B; The half-power beamwidth of E plane and H plane is about °60. Composite rectangular antenna is suitable for S, C, Wi MAX(2.3-3.5GHz), Wi Fi(5.25-5.35GHz) bands, The highest gain of antenna is 9.45 d B, which is about 5 d B higher than that of traditional microstrip antenna. Simulating and comparing the radiation pattern for different parameters of Y antenna. As for the radiation of the antenna array, this paper simulated the radiation of array antenna whose element distance and cell shape are different, because of that we can have the results that what and how the cell shape of the array antenna and the distance of element influence the radiation.