These wireless communications components are useful for base-station receivers, consumer electronics, and industrial microwave instrumentation.

This design allows broadband power combining with high isolation between the H port and E port, and achieves a lower insertion loss than any other broadband planar magic-T. Passive micro wave/millimeter-wave signal power is combined both in-phase and out-of-phase at the ports, with the phase error being less than ±1°, which is limited by port impedance.