Patent ID: 9231536
Filing Date: 2016-01-05
CPC Classification: H03F,H04B,H04W

Claim Text:
1. A power amplifier (PA) system configured to operate about a plurality of modes and a plurality of frequency bands, the PA system comprising: an input port for inputting input signals that are processed in the PA system to generate output signals; an output port that outputs the output signals in a mode selected from the plurality of modes and in a frequency band selected from the plurality of frequency bands during a time interval, wherein the output signals vary with time; one or more amplifying modules, each amplifying module comprising a plurality of banks, each of the banks comprising one or more transistors, wherein each of the banks is configured to have an input terminal and amplify power of signals to a predetermined level; a plurality of matching modules, each matching module being configured to be adjusted to provide an impedance corresponding to the frequency band and conditions, wherein the number of the plurality of matching modules is one more than the number of the one or more amplifying modules, and the plurality of matching modules and the one or more amplifying modules are coupled alternately in series having a first matching module coupled to the input port of one of the one or more amplifying modules and a last matching module coupled to the output port of the one or another of the amplifying modules; and a controller coupled to the input terminal of each of the banks and to the plurality of matching modules through a bidirectional control line; at least one of the matching modules comprising: the PA system being further characterized in that: the controller receives information on the output signals and the conditions, and based on the information the controller controls the input terminal of each of the banks to select one of the banks from each amplifying module in a predetermined series to turn on the selected banks in the series and adjusts the plurality of matching modules, wherein the matching module coupled to receive signals from a last bank of the selected banks in the series is coupled to the output port, and wherein the controller controls the input terminal of each of the banks and adjusts the matching modules variably with time as the information varies to provide a signal path that has the selected banks and the adjusted matching modules to meet specifications on properties associated with the output signals during each time interval.