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Analog phase shifter (Read 2177 times)
kr106
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Analog phase shifter
May 16th, 2012, 6:35am  
I already made fixed phase shifter but I need to make an (variable) analog phase shifter (0-180°) with variable control voltage (0-13V) at 2.45 GHz centre frequency using ADS tools. Anyone can give me idea about whole circuit schematic or provide me any made schematic.
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raja.cedt
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Re: Analog phase shifter
Reply #1 - May 16th, 2012, 6:49am  
hello,
what kind of signal you are going to delay? If it is a digital signal better go for gilbert mixer which gives variable phase shift, but it need I &Q signals. If they pure analog i donno may be RC phase shifter with Controlled R

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raj.
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Re: Analog phase shifter
Reply #2 - May 20th, 2012, 10:17am  
is this purely for a math model or are you going to need to make it out of transistors later on?
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aaron_do
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Re: Analog phase shifter
Reply #3 - May 20th, 2012, 5:57pm  
The control voltage sounds very large (13 V). What technology are you using? At low frequencies, you can use an op-amp based all-pass filter. There are also passive RLC methods to design an all-pass filter.
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