Design of the Gradual Patch Spiral Dipole Complementary Gap Composite Ultra Wideband Antenna

According to the performance requirements of the multi band compatible antennas for microwave frequency band multi network integration system, the present paper originally combines gradual patch spiral dipole antenna, complementary gap antenna, polyethylene terephthalate film, ceramics thin slice and ferrite coating, designed a gradual patch spiral dipole complementary gap composite ultra wideband antenna. The result of test indicates that this antenna has a better anti-jamming ability. When the antenna is placed near metal objects and various microwave signal sources, the radiation performance of the antenna is almost unaffected and the antenna can work normally. This antenna completely covered all working frequency bands of the second generation to the fifth generation mobile communication, the frequency bands of the radio frequency identification system, the frequency band of the ultra wideband system, and the frequency band of the mobile digital TV system. This antenna has high radiation intensity and large performance redundancy, so it has broad application prospects. (paper)