I want to design a *5 mulitlier

I'm a beginner of the RF design.
I want to design a *5 mulitlier.
I have a 1.945Ghz signal.
I want to get a 9.725GHz signal use the Ma-com MA44621A.
Thank you!

You have two options. One is to use a PLL with a VCO at the final frequency and a divide by five counter in the feedback loop to the phase detector.

Ther other method is to use a nonlinear circuit to produce harmonics and then a band pass filter to get the one you want. For these higher harmonics, a step recovery diode is usually used.

The first option is usually the cleanest as far as spurious outputs. The second is the cheapest in some cases if you can tolerate the lower power and spurious signals.

An old article from Applied Microwave & RF magazine:

Stable X band Local Oscillator.

There is a X band x5 active frequency multiplier. I think it is nice ones.