Choice of DC blocking capacitors in Microstrip Design

Hi,

I was wondering as to how to choose the correct value of a DC
blocking
capacitor with least possible reactance with atleast 5V and 20mA.
Center Frequency 910MHz. The value of capacitor that i need is above
200pF..


I know the thumb rule that SRF(self resonant frequency) > 2 Operating
frequency. but i enquired both Farnell and Rscomponents distributors
in UK as am here .., Only low value capacitors satify the above
criteria of SRF. How do i proceed with the same...


Thanks a lot
Alec


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