Hybrid & Directional Couplers

Tappers | High Power | Low PIM specifications | High Directivity 
Low Insertion Loss | Wide Band specifications | Connectors: SMA, N, TNC, 7/16, 4.3-10

3dB Hybrid Coupler

Hybrid Couplers are most commonly used to combine two wireless carriers in the operating band to a single antenna feed or distribution cable. This requires the termination of one output port in and results in a 3 dB loss in each signal. In situations where two similar feeds are required, as required for an in-building application, both outputs may be used eliminating the need for a termination and the 3 dB loss.

Directional Coupler

Directional couplers provide flat coupling of one signal path to another in one direction only (known as directivity) and low VSWR over one full octave or more. They commonly consist of an auxiliary line coupling electrically to a main line, which becomes more complex as the bandwidth increases. One end of the auxiliary line is permanently fitted with a matched termination. Directivity (the difference between coupling in one direction compared to the other) is approximately 20 dB for printed couplers, 25 dB or more for air-dielectric couplers.

Directional couplers are used whenever part of a signal needs to be separated off or two signals need to be combined.

We offers narrow band and wireless band directional couplers with coupling ranging from 3 dB to 50 dB or more, always reference to the input port.


Tappers unevenly split high power cellular signals in fixed ratios from 1000:1 to 2:1 with minimal reflections or loss over the key wireless bands in the range 350 – 5,930 MHz, (there is no coupling 1550 to 1650 MHz).

The innovative asymmetric design ensures an excellent input VSWR and coupling flatness across the specified bands, even down to a 2:1 split.


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