In the field of power synthesis, the present invention proposes a compact four-way power distribution and synthesis structure, including a straight
waveguide, a
microstrip probe, an
impedance matching section, a Wilkinson bridge, and an isolation
resistor, and the straight
waveguide is the input port of the power divider and the output port of the synthesizer, two symmetrical substrates are arranged at a quarter
wavelength away from the short-circuit surface of the straight
waveguide, and opposite
microstrip probes for
signal coupling are fixedly installed on the substrates, and each
microstrip probe The strip probes are matched and connected to the microstrip line through the corresponding
impedance matching section, and the microstrip line corresponds to the cascaded Wilkinson bridge; the
impedance matching section, microstrip line, and Wilkinson bridge are all installed on the substrate The present invention has the characteristics of small size, compact structure, low loss, high port isolation, wide bandwidth, etc., and also has the function of four-way power distribution / combination from waveguide to microstrip transition; it can be applied to
radar, electronic countermeasures,
Electronic communication and other fields, suitable for
microwave and
millimeter wave frequency bands.