afz23
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Kindly explain,why does a locked VCO o/p gets affected if its interfaced with a non-linear circuit like varactor based reftection
type analog phase modulator?
It has been observed that ,if isolation between the two circuits(VCO and modulator) is not very good(>50dB),you will get
over modulated or imbalanced side-bands as shown in the figure.![modulation.JPG modulation.JPG](https://www.edaboard.com/data/attachments/29/29857-b8c0a3b7fd45b878780a6eb4c2e646c2.jpg)
type analog phase modulator?
It has been observed that ,if isolation between the two circuits(VCO and modulator) is not very good(>50dB),you will get
over modulated or imbalanced side-bands as shown in the figure.
![modulation.JPG modulation.JPG](https://www.edaboard.com/data/attachments/29/29857-b8c0a3b7fd45b878780a6eb4c2e646c2.jpg)