How to evaluate and measure the specs and dataes with the EVB of RF SPDT switches ?

Question

Hi all, 
 
 Following the EVB of the RF SPDT switches, dc blocking capacitor is no insert. 
 ADRF5023, ADRF5021, ADRF5027, HMC1118 
 
 Q1. How to evaluate and measure the specs and dataes with EVB ? 
 How to set the measurement enviromet @ ADI ? 
 Q2. To evaluate and measure the specs and dataes with EVB @ 9 kHz ～ 13 GHz, what is the recommend value of dc blocking capacitors ? 
 
 Best regards, 
 sss

zwang · Accepted Answer

Hi, 
 For ADRF5023, it has positive supply VDD and negative supply VSS, therefore, the RF line potential is 0VDC, and no DC blocking cap is required at all RF ports; 
 For HMC849a, it only has positive supply VDD, therefore, the RF line potential is NOT 0VDC, and DC blocking cap is required at all RF ports; 
 You can refer the datasheet of the part and it is clearly defined in the datasheet about whether DC blocking cap is needed or not.)

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How to evaluate and measure the specs and dataes with the EVB of RF SPDT switches ?