I'm now looking a device which can continuously adjust phase while maintain constant impedance. So far i come across with two solutions - line stretcher and phase shifter. However, I'm bit confuse with both items and could anyone advise me the difference(s) between line stretcher and phase shifter?
Also, I'm now looking a line stretcher/phase shifter which meet below criteria -
Frequency range: DC – 6GHz
Power rating: 45dBm max (32W max)
Load impedance: short circuit or open circuit
Phase shift step size: 5 –10 degree
Insertion loss: 3dB max
Phase shift range: 360 degree
Please kindly share if you can recommend any solution.