System and method for adjusting group delay
First Claim
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1. A feedforward amplifier comprising:
- a main amplifier gain path including a first group delay adjuster having a virtual inductor; and
an error amplifier gain path including a second group delay adjuster having a virtual inductor having an output coupled to an output of the main amplifier gain path, wherein each of the virtual inductors includes a quarter wavelength transmission line coupled to a variable shunt capacitor.
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Abstract
A group delay adjusting circuit. The group delay adjusting circuit comprises an electronically adjustable variable capacitance, and an electronically variable virtual inductor coupled in parallel to the electronically variable capacitance at a node.
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Citations
3 Claims
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1. A feedforward amplifier comprising:
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a main amplifier gain path including a first group delay adjuster having a virtual inductor; and
an error amplifier gain path including a second group delay adjuster having a virtual inductor having an output coupled to an output of the main amplifier gain path, wherein each of the virtual inductors includes a quarter wavelength transmission line coupled to a variable shunt capacitor. - View Dependent Claims (2, 3)
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Specification