Patent ID: 8620236
Filing Date: 2013-12-31
Classification: H01Q,H03G,H03H,H04B

Abstract:
1. An apparatus, comprising: an RF matching network comprising one or more variable reactive elements, wherein the RF matching network is tuned to adapt to a change in impedance of a variable load, wherein the tuning for each tuning step is limited within a range up to a pre-determined magnitude for each tuning step initiated during a transmit burst to reduce an undesirable effect that would result in a failure to comply with a transmission specification and that would have occurred based on a transmitted signal if an unconstrained magnitude for each of the tuning steps had been utilized, wherein the transmission specification provides signal specifications for transmission of RF signals in a communication system, and wherein the tuning is initiated from an initial tuning state of the one or more variable reactive elements where the initial tuning state is selected based on a use case of a communication device housing the RF matching network.