Variable attenuation circuit utilizing varactor diodes
AssigneeSkyworks Solutions, Inc.
InventorsGordon Glen Rabjohn, Anatoli Pukhovski, Pietro Natale Alessandro Chyurlia
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Abstract
A variable attenuator circuit is disclosed. The variable attenuator circuit comprises a plurality of varactor diodes configured to attenuate an RF signal between an RF input and an RF output; a reference voltage input, and a control voltage input configured to vary the attenuation of the variable attenuator circuit based upon a control voltage. A radio frequency module and wireless device comprising said variable attenuator are also provided.
Claims20
A variable attenuator circuit comprising:
- a plurality of varactor diodes configured to attenuate a radio frequency (RF) signal between an RF input and an RF output, the plurality of varactor diodes being arranged in a pi-type attenuator configuration;
- a reference voltage input;
- and
- a control voltage input configured to vary the attenuation of the variable attenuator circuit based upon a control voltage.
A radio frequency module comprising a variable attenuator, the variable attenuator having:
- a plurality of varactor diodes configured to attenuate a radio frequency (RF) signal between an RF input and an RF output, the plurality of varactor diodes being arranged in a pi-type attenuator configuration;
- a reference voltage input;
- and
- a control voltage input configured to vary the attenuation of the variable attenuator circuit based upon a control voltage.
A wireless communication device comprising a variable attenuator, the variable attenuator circuit having:
- a plurality of varactor diodes configured to attenuate a radio frequency (RF) signal between an RF input and an RF output, the plurality of varactor diodes being arranged in a pi-type attenuator configuration;
- a reference voltage input;
- and
- a control voltage input configured to vary the attenuation of the variable attenuator circuit based upon a control voltage.
Dependencies are inferred from the claim text.