yefj
Advanced Member level 5
Hello,I have made a progress in the project( the previos post is not allowing me to reply there).
The system is based on the article attached.
I tuned the YIG to the resonance of the resonator, then i measured the output of the IF on a scope as shown below.
When I tuned to ph2 pase shifter i see the "error voltage" level shanges which need to go back to the YIG "FM" port as shown below.
Also i need to make sure that the signal going back to the YIG is something which the YIG could make changes so It will be sensitive to the signal.
How do i need to tune the phi2 phase shifter so I wull get a lock in the resonance frequency?
View attachment 195583
View attachment 195584
The system is based on the article attached.
I tuned the YIG to the resonance of the resonator, then i measured the output of the IF on a scope as shown below.
When I tuned to ph2 pase shifter i see the "error voltage" level shanges which need to go back to the YIG "FM" port as shown below.
Also i need to make sure that the signal going back to the YIG is something which the YIG could make changes so It will be sensitive to the signal.
How do i need to tune the phi2 phase shifter so I wull get a lock in the resonance frequency?
strategy for designing a locking component in PLL
Hello,there is a circuit shown below taken from the attached article, where we put a YIG signal to a cavity resonator(from A to B) . Then for feedback we lock on the point of the dip. this dip is supposed to be a resonance of a cavity. resonance is when the magnetic energy equals the electric...
View attachment 195583
View attachment 195584