Design And Application Of High Gain Broadband Dual Polarized Printed Oscillator Antenna

In recent years, the dual polarized antenna research more and more get the attention of people. The traditional dual polarized antenna was in form of microstrip antenna, four ridged horn antenna and printed dipole antenna. But the bandwidth of microstrip antenna is too narrow, the size of horn antenna is too big, and ordinary double polarization printing oscillator antenna gain is low. Therefore, design a new type of high gain, wide band, miniaturization dual polarized antenna has very important application value.On the basis of dual polarized broadband antenna reflector design requirements of the project, the study of lead printed dipole antenna and the antenna radiation mechanism, the matching principle of printed dipole antenna are analyzed in this paper;By loading the Coplementary Split Ring Resonator, further improved the bandwidth of the bipolar printing element antenna to the octave; By loading to-implement oscillator before radiation oscillator, effectively improve the increased antenna gain, and narrow the beamThe simulation and measured results show that through the load on the radiation oscillator with Coplementary Split Ring Resonator, antenna’relative bandwidth is53.3%in return loss less than-10dB. By loading director before radiation oscillator, the gain of antenna improved2dB on the premise that its bandwidth is constant,and the-10dB beam of antenna decreases by about130°,so the antenna is match to the design requirements of the dual polarization reflector antenna feed.