1results about How to "Reduced DC power consumption" patented technology

The application provides an electrically small antenna broadband matching circuit, a printed circuit board, an active antenna and a device. The electrically small antenna broadband matching circuit comprises a field effect transistor, a direct current power supply module, a first biasing module, a second biasing module and a third biasing module. The drain of the field effect transistor is used as an output end of the electrically small antenna broadband matching circuit and is connected with a transmission line. The gate of the field effect transistor is used as an input end of the electrically small antenna broadband matching circuit and is connected with an output end of the electrically small antenna. The first biasing module is connected with the direct current power supply module. The first biasing module, the second biasing module and the third biasing module are used for direct current biasing of the field effect transistor in an ohmic region with a preset output impedance. The field effect transistor is used for amplifying a signal input by the electrically small antenna and performing impedance matching with the transmission line. The scheme provided by the application reduces the power consumption of the electrically small antenna matching circuit.