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phase shifter working in the 2-6 GHz range - design

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allan681

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phase shifter

I want to design a phase shifter working in the 2-6 GHz range
 

toonafishy

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Do you want a fixed phase shift or a variable one? Do you want a mechanical version, such as a double stub tuner or an electronic solution using something like microstrips and PIN diodes? Whats the application?
 
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lkuzu

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phase shifter

I also want to design the same thing but fixed degree phase shift.

first, I am trying to design 90' phase shift operating between 2-6 GHz, and then I want to widen the bandwidth to 2-8 and so on.

I know a lumped element solution. I need to convert this model into distributed one. All I need is to simulate the series capacitor.

any help is appreciated.

thnx
Lkuzu
 
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flatulent

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classical method

The classical methods are branch line couplers and parallel line couplers. To get these wide bandwidths, you will have to use many elements and usually an analysis program with an optimizer. In each type the elements are a quarter wave long at the center frequency. In the branch line method they are of different impedances. In the parallel line method they are different distances. In both methods the system is symetrical from end to end.
 

zgx

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the lange coupler lately is always used in broadband shifter,and using cascaded coupler reflective phase shfter was reported reaching the 1-19GHz wideband.
 

lkuzu

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phase shifter

zgx,

could you give us more information about lange couplers as a phase shifter device? You say 1-19 GHz bandwidth reported, but where? Could you give us paper name and year?

thanks :)

Lkuzu
 

zgx

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please look at it "Decade bandwith hybrid analogue phase shift using...."
Electronics Letters,1992,28(11),PP1064-1065.
sorry. I have not this paper.
 

yingyang

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phase shifter

What is the phase shift you are looking for????
:roll: :roll: :roll:
 

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