The antenna obtains the gain by means of .
A . Using a power amplifier in the antenna system
B . Making the antenna radiation more concentrated
C . Use high efficiency antenna feeder
D . Use low standing wave ratio equipment
Answer: B
The antenna obtains the gain by means of .
A . Using a power amplifier in the antenna system
B . Making the antenna radiation more concentrated
C . Use high efficiency antenna feeder
D . Use low standing wave ratio equipment
Answer: B