Research And Design Of Miniature Super Bandwidth Patch Antenna

With the rapid development of wireless communication systems,the integration of circuits in communication equipment is getting higher and higher,and the volume of electronic devices gradually decreases.This requires that the antenna should be as small as possible in meeting the functional requirements.Second,due to the rapid development of the Internet of Things(Io T),the number of users who use wireless communications is gradually increasing,and the amount of wireless data traffic increases.Data rates of wireless terminals are required to be increased.Therefore,wireless terminals should have wideband or multiband capabilities,The size should be reduced as much as possible to match the communication equipment.This dissertation focuses on the miniaturization and wideband microstrip patch antenna.Theoretical analysis,antenna model construction and structure optimization,simulation verification and other means are mainly used for the miniaturization and wide band Design,the specific process and results are as follows:1.The design of a rotating microstrip patch antenna for wireless communication is optimized.The design of the original rotating patch antenna is further optimized by adding a parasitic patch.Through finite element simulation and optimization of relevant structural parameters To achieve the best bandwidth.The simulation results show that the impedance bandwidth of the antenna can reach 10GHz(2GHz-12GHz),the relative bandwidth is 142%,and its bandwidth is 1.4 times the bandwidth of the reference rotating patch antenna.2.Optimized an elliptical slotted microstrip antenna for wireless communication,slotted the right half of the existing elliptical antenna through the slotting technology in the antenna miniaturized ultra-bandwidth method,and optimized the antenna through simulation The experimental results show that the impedance bandwidth(10dB return loss)of the antenna is 9.19GHz(2.79GHz-11.98GHz),and the relative bandwidth is about 124%.Is 4x the bandwidth of the reference elliptical patchantenna and has good omnidirectional characteristics and gain levels in the operating band.The optimized two microstrip patch antennas have good omnidirectional radiation characteristics and gain levels in the operating frequency.On the basis of the original antennas,the optimized antenna bandwidth has been greatly improved,the frequency band has a wide coverage,It can be widely used in various wireless terminals with stable performance,simple structure and strong practicability.