Author Topic: need help matching chip antenna M620720  (Read 350 times)

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Offline bug13

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need help matching chip antenna M620720
« on: November 28, 2017, 03:30:41 pm »
Hi guys

I have done a couple PCB antennas matching, but I have trouble matching this chip antenna M620720 with a PI network to 50ohm:

I found an example in this developer guide:
Multitech xDot

In P33, they use two caps? I don't understand this configuration, can someone give me some pointers? Thanks a lot!

  • I am able to turn the frequency with the minor and major turning, but with no luck matching it 50ohm.
    I only have a USB desktop VNA

« Last Edit: November 28, 2017, 03:33:42 pm by bug13 »
Zhuhua Wu
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