Microstrip antenna for low-orbit satellite communication

The invention discloses a microstrip antenna for a low-orbit satellite communication. The microstrip antenna for the low-orbit satellite communication comprises a quadrate dielectric substrate, and a quadrate copper cladding paster which is attached to the quadrate dielectric substrate and concentric with the quadrate dielectric substrate; a diagonal line of the quadrate copper cladding paster is overlapped with the diagonal line of the quadrate dielectric substrate in position; right-angled triangles with right angle side being 3.0mm in length are respectively cut from four corners of the quadrate dielectric substrate; right-angled triangles with right angle side being 6.90mm in length are respectively cut off from two symmetric corners of the quadrate copper cladding paster; feed holes which pass through the quadrate dielectric substrate and the quadrate copper cladding paster are formed in the central vertical lines of four sides of the quadrate dielectric substrate and 26mm far away from the center of the quadrate dielectric substrate; conductors in the feed holes are 1.00mm in diameter, and conductors outside the feed holes are 2.30mm in diameter. According to the microstrip antenna, the centimeter-wave and millimeter-wave paster microstrip antenna technology is applied to a low band of the microwave section, so that the portable and small microstrip antenna at the band can be achieved while the performance indexes are met.