Dual-frequency GPS antenna for radio occultation detection

The invention relates to antenna technology field, specially a kind of double frequency GPS antenna which is used in wireless obscuration detection. The antenna is 1X4 array antenna which comprises four unit antennas which are distributed evenly. The unit antenna adopts the cascade type aperture coupling micro belt antenna form; it includes two layers of radiation medium board and a layer of feeding medium board. The antenna adopts structure of beehive on foundation of four bars supporting, this structure is light, and possesses perfect shock resistance and antivibration capability, it fulfills requirement of star-load. The double frequency GPS antenna in the invention fits for mounting on low track satellite to detect atmosphere and ionosphere using wireless obscuration technique.