FEEDING NETWORK, ANTENNA AND DUAL-POLARIZED ANTENNA ARRAY FEEDING CIRCUIT

摘要

An embodiment of the present invention is directed to a supply network, wherein the supply network comprises a first balun device of a first supply sub-network, the first balun device being connected to a PCB positive 45 degree polarization port, Strip 45 to the PCB first positive 45 degree polarization output port and to the second positive 45 degree polarization output port using the second microstrip so that a first positive 45 degree polarization output port and a second positive The signals at the 45 degree polarization output port are of equivalent amplitude and 180 degree phase difference and the supply network comprises a second balun device of the second supply sub network and the second balun device has a PCB negative 45 degree polarization port And connected to the PCB first positive 45 degree polarization output port using a third microstrip, and using a fourth microstrip to connect the second negative 45 also connected to the output port is biased, which the first negative 45 is also in amplitude and 180 ° phase difference between the signals from the polarization of the equivalent output port and second output port, a negative 45-degree polarization. Embodiments of the present invention further provide an antenna and a dual polarization antenna array supply circuit. The supply network in the embodiment is relatively small and can cover a plurality of frequency bands.