Our company has about 20 authorized invention patents in passive device phase shifter reconfigurable antenna, etc. The application fields are related to radar electronic countermeasures, aerospace, navigation and other military fields. At the same time, it is also widely used in microwave communication, mobile communication and other civil market products, covering RF microwave devices components and antennas, among which, active products include high power solid-state microwave power amplifier, low noise amplifier transceiver module, up and down frequency converter, frequency source, etc. Passive products include microwave filter,duplexer power divider, coupler, power synthesizer, etc. The antenna products are mainly based on various high gain horn antennas, which covers VHF, UHF, L-band, S-band, C-band, X-band, Ku band and so on.