Salam Ahmed,

May I know the applications  i mean where do you want to use for?? 

electrolytic dq capacitor can be better. 

Dear Ahmed,

The type of the capacitor you can use is the high frequency capacitors. They have small losses at the high frequency in addition to high stability. Perhaps the most suitable type is the silver- Mica capacitors. For more information please see the link:http://www.gqrp.com/na5ndatasheet.pdf

Electrolytic capacitors are polarized and not suitable for your application as you need a non polarized capacitor. They may have also high polarization losses at high frequencies.

wish you success

I do agree with Abdelhalim Zekry "The type of the capacitor you can use is the high frequency capacitors".

However, AVX is providing SRF in GHz. You can go through

Try this for litz wires purchase: http://www.mwswire.com/ 

For capacitors, you can check Kemet, the SMD ceramic capacitors may be preferred for low ESR/ESL.

If your capacitor operates at changing temperature environments, you may want to use C0G type capacitor to avoid the capacitance drift with the temperature.