The microwave rotary joint is the essential component to guarantee the normal work of microwave rotary antenna. While the antenna is rotated, the signal is transmitted from transmitter to antenna, and then to the receiving system, which makes the search of the orientation and pitching. We can design and manufacture different kinds of single path coaxial joint, waveguide joint, multi-path coaxial joint, double and multi path waveguide joint, broad band joint, and millimeter joint. These products have features of low VSWR, low insertion loss, little phase fluctuation, high signal integration and etc. They are widely used in radar, navigation, and reconnaissance equipments.