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Hi,Faber
C1,C3 may use NP0 ceramic capactior, 50~100p is ok.
C2,C4 may use Electrolytic capacitor, or you can decrease the capacitance then use X7R ceramic capactiors
It depends on the aim of using inductor， high Q or else.
you may find some help in the book 《secrets of rf circuit design》.
---------- Post added at 15:24 ---------- Previous post was at 15:20 ----------
you can find it in chapter 4
bias-t design
U may use high-Q inductors for designing wideband Bias tee,
it's large enough for 0.1MHz and its resonance freq in series larger than 1800M is enough.
There is no strict differences betweem them,
but microwave if more wideband for frequences
Added after 3 minutes:
Maybe you can follow the upstairs' opinion
+reflection coefficient +positive +negative
You may first to understand the characteristics of filter,
the tools to display you can choose anyone you like.
you can find these books :
High-efficiency shared-current microwave power amplifier design
Advanced.Techniques.in.RF.Power.Amplifier.Design
RF Power Amplifiers for Wireless Communications
the first filter :0.80 to 0.96GHz .
You can try it with lump elements on microstrip or use lump element to improve its parameters.
the higher freq filter I thik you can try to use stripline to design for High Q, for microstrip Q is so poor
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