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What type of resistors, inductors, and capacitors to use for 2 GHz LNA design?

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skatefast08

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I was going to use 0402 SMD resistors, inductors, and capacitors, but I found on digikey that it has a self resonant frequency parameter filter (narrowing down components). Would the self resonant frequency matter? would I have to get an inductor that resonates between 2-3 GHz? What parameters would you look after when deciding which component to use?
 

Hi skatefast08,

The self-resonant frequency is the frequency above which the device no longer operates as you'd want it to. For example, a coil "inductor" may act as a capacitor, or vice-versa. Near this frequency, losses can increase exponentially.

You want to operate sufficiently far below this frequency; if you're designing for 2 GHz I'd suggest to choose one that has a self-resonance above 2.5 GHz.

Good Luck!
 
skatefast08 said:
I was going to use 0402 SMD resistors, inductors, and capacitors, but I found on digikey that it has a self resonant frequency parameter filter (narrowing down components). Would the self resonant frequency matter? would I have to get an inductor that resonates between 2-3 GHz? What parameters would you look after when deciding which component to use?
Click to expand...
Look at Murata's Coils and Capacitors.
Inductors LQP15N series
Capacitors GRM1555 series..
Both have high quality RF components.
 
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