The max. value of the capacitor found in the market to meet the SRF for an operating frequency of 3.4GHz is 27pF.
Please provide the part number of a 100pF DC blocking capacitor which can be used in HMC291SE with good SRF.
We use a standard 100pF Ceramic Capacitor in 0402 package available from various vendors (for example Kemet, Yageo). It works well at 4 GHz.
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