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Manufacturing.

Model XC0900E-03

Rev B

Hybrid Coupler Pin Configuration

The XC0900E-03 has an orientation marker to denote Pin 1. Once port one has been identified the other ports are

known automatically. Please see the chart below for clarification:

Configuration

Pin 1

Pin 2

Pin 3

Pin 4

Splitter

Input

Isolated

-3dB

90

−

∠

θ

-3dB

θ

∠

Splitter

Isolated

Input

-3dB

θ

∠

-3dB

90

−

∠

θ

Splitter

-3dB

90

−

∠

θ

-3dB

θ

∠

Input

Isolated

Splitter

-3dB

θ

∠

-3dB

90

−

∠

θ

Isolated

Input

*Combiner

A

90

−

∠

θ

A

θ

∠

Isolated

Output

*Combiner

A

θ

∠

A

90

−

∠

θ

Output

Isolated

*Combiner

Isolated

Output

A

90

−

∠

θ

A

θ

∠

*Combiner

Output

Isolated

A

θ

∠

A

90

−

∠

θ

*Note: “A” is the amplitude of the applied signals. When two quadrature signals with equal amplitudes are

applied to the coupler as described in the table, they will combine at the output port. If the amplitudes are

not equal, some of the applied energy will be directed to the isolated port.