MINIATURE DUAL-FREQUENCY WILKINSON POWER DIVIDER

摘要

The present invention relates to signal transceiving electronic devices in the field of communications and radars, and particularly relates to a miniature dual-frequency Wilkinson power divider, comprising a dielectric slab, and an input microstrip transmission line attached to a top layer of the dielectric slab and having output terminals respectively connected to a first and second transmission group arranged in an axially symmetric manner with respect to a structure. The first transmission group comprises a coplanar waveguide transmission line attached to a base layer of the dielectric slab and an output microstrip transmission line and a middle microstrip transmission line attached to the top layer of the dielectric slab, arranged in series. The middle microstrip transmission line has the same shape as the shape of the coplanar waveguide transmission line, and center lines of these two are aligned vertically. An input terminal A of the coplanar waveguide transmission line is connected to the input microstrip transmission line. The coplanar waveguide transmission line is bent inward to form a loop from the input terminal A to an output terminal A, and is connected to the middle microstrip transmission line by means of a metal conductive via B. The middle microstrip transmission line is connected to an output interface by means of the output microstrip transmission line. The present invention effectively solves the problem of Wilkinson power dividers having excessively large volumes in the prior art.