Silicon Laboratories Inc.
Apparatus for Antenna Impedance-Matching and Associated Methods

Abstract:

An apparatus includes an impedance matching circuit for matching an impedance of a high quality factor (high-Q) antenna to an impedance of a radio-frequency (RF) circuit. The impedance matching network includes a first reactive network. The impedance matching network also includes a second reactive network coupled in series with the first reactive network. The second reactive network includes a reactive component realized by multiple reactive components so as to reduce sensitivity of the impedance matching network to component tolerances in the second reactive network.