High Speed Op Amps for 100MHz Signal Amplification Without Phase Shift Matching Gain

Hello,

I'm working on a task where I need to amplify two 100MHz analog signals (voltage and current) without disturbing their phase difference. The two sine wave voltage signals actually measure current and voltage in RF. One of the two signals is upto +/-7V while the other is upto +/-1V.

How can I use high speed op amps to make both signals amplitude equal by using opamps and variable resistors without affecting the phase difference?

Can I use two sets of high speed (>500MHz bandwidth) opamps for each signal and adjust the gain of both seperately to make the opamps amplitude equal?

Please recommend me some opamps as well.

Thank you.

Hi Zeeshan,

I think a voltage follower or isolation amplifier will be a great help in you circuit before feeding in to your high speed op amps.

Good Luck.

Best,
Neil