XC0450L-03 Datasheet, PDF (23/24 Pages) Anaren Microwave – High Power

Variable Phase Shifter Circuit Utilizing a 3dB Coupler
4
Input
1
Vdc
Output
2
3
* |Γ (0.5V ∠2θ -90 + 0.5V ∠2θ -90)| =| Γ|
Model XC0450L-03
Rev E
Γ× 0.707V ∠θ
0.707V∠θ (-3dB)
Varactor Diodes
0.707V ∠θ -90 (-3dB)
Γ× 0.707V ∠θ -90
* The phase angle of the signal exiting port 2 will vary with the phase angle of Γ, which is the reflection
angle from the varactor. The varactors must be matched so that their reflection coefficients are equal.
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