HEAD-HAND CAPACITANCE COMPENSATION WITH DIGITAL VARIABLE CAPACITOR

摘要

The present disclosure generally relates to a device having a capacitance sensor that detects a change in capacitance that occurs in the antenna whenever the antenna is in close proximity to a user's hand and/or head. Following detection of the capacitance change, the capacitance of the antenna may be changed by using a variable capacitor that is coupled to the sensor through a controller.

主权项

1. A device, comprising:
a first antenna; an RF source coupled to the first antenna; a capacitive sensor capable of detecting the capacitance of the antenna; a feedback controller coupled to the capacitive sensor; and a first capacitor coupled to the antenna and to the feedback controller.