Antenna tuning

Antenna tuning
9
Antenna Measurements
The electrical characteristics of an antenna that are of interest to obtain
by direct measurement are:

1) The frequency at which the antenna is tuned.
2) The gain.
3) The radiation pattern.

Tuning of an antenna.
To check if an antenna is tuned at the correct frequency, we can use a
Directional Coupler and a Spectrum Analyzer. The signal is internally
generated by the Tracking Generator of the Spectrum Analyzer, which is
connected to the input port of the Directional Coupler. The antenna is
connected to the output port of the Directional Coupler.

SPECTRUM ANALYZER
WITH TRACKING GENERATOR


ANTENNA
UNDER