This looks good: http://www.ti.com/corp/docs/university/pdf/adc2012_politecnico_di_milano.pdf

parts can be purchased at farnell, mouser, ... as you don't need anything special for the circuit.

Hi Vahid,

It depends on what form do you want the circuit in. Do you want connectorized components or at a board level/ chip ? In any case, you can order samples or buy one from companies like pasternack, TI, Analog Devices etc. Digi-Key should list some available components. You can even get a 90 degree power splitter and use it as a phase shifter.

Can you explain the purpose of this phase shifter?

You can use a Narrow Band Phase Shifter like JCPHS-2.5+ attached here if needed.

Or you can design one (Which is always the Better Option) using

1. Voltage Comparator

2. Linear Gain Amplifier

along with some connectors and passive component depending on the design diagram.

Or Using some already designed circuits given in Phase Shifter Pdf.

Phase Shifter Design

Thanks all of you for your answer.

Actually, because I was hurry and I don't want to invest time on design and fabrication of circuit and because my goal was to have just signal, I decided to use a 2-channal function generator which have feature of providing the adjustable phase shift between signal.

So, my problem will solve in this way

thanks