Broadband Directional Couplers 559 Series

Release time：2025-5-3 9:24:11 Add to cart

Mi-Waves’ 559 series broadband directional couplers are broadwall multi-hole energy-coupling devices. The 559 series couplers are designed in 7 waveguide sizes from 18.0 to 110 GHz. Nominal couplings of 3 dB, 6 dB, 10 dB, 20 dB, 30 dB, and 40 dB are offered to complement specific test set requirements. Other custom configurations are available upon request.

 

Model Number	559K	559A	555B	555U	555V	555E	555W
Frequency Band (GHz)	18.0-26.5	26.5- 40	33.0- 50	40.0-60	50.0-75	60.0-90	75.0-110
Coupling (dB)	------3, 6, 10, 20, 30, 40------
Coupling Variation (dB)	± 0.6	± 0.6	± 0.6	± 0.8	± 1.0	± 1.0	± 1.0
Coupling Accuracy (dB)	± 1.0	± 1.0	± 1.0	± 1.2	± 1.5	± 1.5	± 1.5
Directivity (dB) Typical	40	40	40	40	40	40	40
Main Line VSWR	1.05	1.05	1.05	1.1	1.1	1.1	1.1
Auxiliary Line VSWR	1.12	1.12	1.12	1.15	1.15	1.15	1.17