Design of bias-T (L band,10 MHz,DC)
You basically need the highest inductance you can get, with the lowest DCR, and with SRF above 2200 MHz.
Most likely you will end up needing to use two or more inductors in series to get really good performance. Possibly you might want to add some large-ish resistors in parallel with these inductors to &quot;de-queue&quot; the circuit. And practically, you will need to basically try a variety of parts from various vendors, considering their parasitic properties, until you find a combination that works well in your application.