Optimization Design of Ultra Wideband Antenna Based on Simulated Annealing Algorithm
Antennas play an important role in wireless communication system, and UWB antenna is an important way in antenna design. For UWB antenna, it can be optimized by simulated annealing algorithm, which has high advan-tages in accuracy and convergence speed, and can optimize the performance of UWB antennas and effectively re-duce electromagnetic interference. The simulation results show that at 2.05 GHz, S11 is less than-10 dB, and at 3.45 GHz, S11 is less than-25 dB. In this frequency band, the incident power will be transmitted by the antenna with an efficiency of more than 90％. At the same time, the bandwidth coverage of UWB antenna is basically in the frequen-cy range of 2.00 GHz to 3.50 GHz, and the results basically meet the requirements of the coverage frequency band. In the operating frequency band of 2.45 GHz, the simulated gain result is 6.62 dBi, and the gain effect in the YZ axis plane is good. After optimized by simulated annealing algorithm, the incident power of UWB antenna has been greatly increased, and it meets the requirement of coverage frequency band, and the signal fidelity is good.
万方数据
维普
