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About Detecting Circuit of HMC6981LS6

Question asked by Tomo-Kakehi on Nov 19, 2014
Latest reply on Nov 20, 2014 by Tomo-Kakehi

The customer uses HMC6981LS6 at 17.7 to 19.7GHz.

He is minding the detecting characteristics changes when the load of antenna is fluctuated. (VSWR, etc)

So, please tell me the following.

- About the inside detecting circuit of HMC6981LS6, how structure does it have?

How connected does the inside diode to RFOUT pin?

- Coupling connection?

- Direct connect to RFOUT through resister?


If HMC6981LS6 has the coupling connection, he will feel easy because it has good isolation.


BR, Tomo