Assertion: antenna's directivity | /r/HasProperty | a measure of the difference
Facets:
value: with directional couplers
type: OTHER
Source sentences:
text: With directional couplers, directivity is a measure of the difference in dB of the power output at a coupled port, when power is transmitted in the desired direction, to the power output at the same coupled port when the same amount of power is transmitted in the opposite direction.