Marki microwaves three port full band directional couplers allow power to be sampled from a transmission line in one direction and have high directivity of 35 dB typical. The directional coupler uses a multi-hole split block design. Which achieves a flat coupling level across the band and low insertion loss. The directional couplers also have a great return loss of 30 dB plus in all 3 ports.
WR-15 High Directivity Waveguide Coupler, 20 dB, 50-75 GHz
Mean Coupling: - dBc Directivity: 41 dB
WR-12 High Directivity Waveguide Coupler, 20dB, 60-90GHz
Mean Coupling: - dBc Directivity: 38 dB
WR-10 High Directivity Waveguide Coupler, 20dB, 75-110GHz
Mean Coupling: - dBc Directivity: 36 dB
WR-28 High Directivity Waveguide Coupler, 10dB, 26.5-40 GHz
Mean Coupling: 10 dBc Directivity: 38.9 dB
WR-22 High Directivity Waveguide Coupler, 10 dB 33-50 GHz
Mean Coupling: 9 dBc Directivity: 40 dB
WR-19 High Directivity Waveguide Coupler, 10dB, 40-60GHz
Mean Coupling: 9 dBc Directivity: 42.2 dB
WR-15 High Directivity Waveguide Coupler, 10dB, 50-75 GHz
Mean Coupling: 8.25 dBc Directivity: 40 dB
WR-12 High Directivity Waveguide Coupler, 10dB, 60-90GHz
Mean Coupling: 9 dBc Directivity: 40 dB
WR-10 High Directivity Waveguide Coupler, 10dB, 75-110GHz
Mean Coupling: 9 dBc Directivity: 42.5 dB