Electronic Communication Systems 2nd Edition by Roy Blake

تمرين 50

Explain how you could measure the insertion loss, coupling, and directivity of a directional coupler. Draw a block diagram and give step-by-step procedures. Include sample results for a source with an output of 0 dBm (measured at the input to the directional coupler) and specifications as follows:
insertion loss: 0.5 dB
coupling: 25 db
directivity: 35 dB