For the biasing sequence please look at the Apps section (page 15) of the HMC8108 Datasheet. Link below:
For the bias controllers please take a look at this page:
My customer reviews the datasheet of HMC8108 and find some confusion.
Please refer below question and let me know your answer.
About value of MIX_VG
As page 4 (ABSOLUTE MAXIMUM RATINGS), the rating of MIX_VG is -2V to +0.15V.
And as page 15…
I received a question about the response time of input ATT of HMC8108 from our customer. The customer would like to know the response time when we change the VCTRL from 0V to -1V and from -1V to 0V. Do you have reference data of them or any information…
My customer is considering to use HMC8108 for marine radar. They would like to have the information about 90 degree hybrid coupler shown in the our measurement diagram below. Could you let me know what the part or module name ?
Keiichi Okuji …