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HMC313 output matching w/Evaluation Board

Hi all,

Our cust evaluated the HMC313E w/ 104217-HMC313.

Attached the file is result of evaluation @ Gain & Return Loss.

Target frequency is 5.8GHz, but gain is degraduation.

We checked the following thread.

https://ez.analog.com/rf/f/q-a/73147/hmc313-matching-app-note

https://ez.analog.com/rf/f/q-a/71824/hmc313-evaluation-board-problem

https://ez.analog.com/rf/f/q-a/73574/hmc313-test-data-in-the-datasheet-and-evaluation-board

They replaced the Materials for Evaluation PCB for 5.8GHz matching.

C1 - C2 100 pF Capacitor, 0402 Pkg. >>>22pF
C3 100 pF Capacitor, 0805 Pkg. >>>22pF
L1 22 nH Inductor, 0805 Pkg. >>>12nH
R1 22 Ω Resistor, 0805 Pkg.

But result is same!

Please advise us for 5.8GHz matching, DC block and RF choke.

Best regards,

sss



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[edited by: sss@jpn at 8:27 AM (GMT -4) on 23 Oct 2020]
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  • Hi sss@jpn,

    Just a follow-up, we have discovered the HMC313 is not the problem, it is an eval board issue. The part was characterized with a different eval board than it currently resides on. We attached the HMC313 to a different eval board and the problem seems to be resolved. We will be re-spinning the evaluation board to correct this problem.

    Thanks,

    DanO

  • Hi Dan0 - san,

    Thank you for your reply!
    We have to report to our customers that there is a problem with the evaluation board design and that the HMC313E itself is not.
    Is it possible for you to provide us with evaluation board information and evaluation data for 5.8GHz matching circuits?

    Best regards,

    sss

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  • Hi Dan0 - san,

    Thank you for your reply!
    We have to report to our customers that there is a problem with the evaluation board design and that the HMC313E itself is not.
    Is it possible for you to provide us with evaluation board information and evaluation data for 5.8GHz matching circuits?

    Best regards,

    sss

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