This method requires a skilled operator and a "golden" filter to compare time response between the tuned filter
and an ideal one.
ADI reduced the amplitude of the unwanted sideband into a load by designing a tuned filter
network to provide the proper sum termination as a function of the RF and LO frequencies.
Since the resistor value is infinity, the high pass filters it self will work as a series tuned filter
0] of the correctly tuned filter
and, based on the measured reflection characteristics, the detuned coupling matrix M.
Characteristics of a tuned filter
compared to the [S.
G, collected from a properly tuned filter
randomly, with the use of a robot.
The YIG tuned filter
(YTF) is one of the more difficult devices to measure because of its sensitivity to current fluctuations in its tuning coil (in this case 10 rad/mA) and its sensitivity to temperature variation, as shown in Figure 9a.
Impulse responses are brief, damped oscillations indicative of broadly tuned filters