Transmitter efficiency optimization
AssigneeHarris Corporation
InventorsMelissa S. Daminski, Cory N. Fitzsimmons
Life of this patent
Estimating the term…
Abstract
Radio transceiver efficiency is improved by operations involving a calibration mode and an operating mode. The calibration mode includes a first calibration to determine a first optimized tuning control data for a first antenna matching network of a first transmitter when a second transmitter of the portable transceiver system inactive. A second calibration of the first antenna matching network while the second transmitter is active to determine second optimized tuning control data. In operational mode the first optimized tuning control data is used when the second transmitter is not active. The second optimized tuning control data is used when the second transmitter is active.
Claims21
A method for maximizing efficiency in a portable transceiver system, comprising:
- during a calibration mode,
- performing a first calibration by selectively varying one or more tuning parameters of a first antenna matching network, to determine a first optimized tuning control data for a first antenna matching network with the first transmitter coupled to a first antenna through a first antenna port, and a second transmitter of the portable transceiver system inactive;
- activating the second transmitter to communicate radio frequency (RF) energy to a second antenna coupled to a second antenna port of the portable transceiver system;
- while the second transmitter is active, performing a second calibration of the first antenna matching network by selectively varying the one or more tuning parameters of the first antenna matching network to determine a second optimized tuning control data;
- storing the first and second optimized tuning control data in a data store;
- and
- during an operational mode,
- controlling the one or more tuning parameters in accordance with the first optimized tuning control data when the second transmitter is not active, and with the second optimized tuning control data when the second transmitter is active.
A portable radio transceiver system, comprising:
- first and second transmitters respectively coupled to first and second antenna ports for providing first and second RF outputs to first and second antennas;
- first and second antenna matching networks configured to facilitate impedance matching respectively between each of the first and second transmitters and the first and second antennas;
- a control processor having access to a data store and configured to cause the portable transceiver system to execute a calibration mode and an operating mode, wherein
- the calibration mode comprises:
- performing a first calibration by selectively varying one or more tuning parameters of the first antenna matching network, to determine a first optimized tuning control data with the second transmitter inactive;
- activating the second transmitter to communicate radio frequency (RF) energy to the second antenna;
- while the second transmitter is active, performing a second calibration of the first antenna matching network by selectively varying the one or more tuning parameters to determine a second optimized tuning control data;
- storing the first and second optimized tuning control data in a data store;
- and
- wherein the operational mode comprises,
- controlling the one or more tuning parameters of the first antenna matching network in accordance with the first optimized tuning control data when the second transmitter is not active, and in accordance with the second optimized tuning control data when the second transmitter is active.
Dependencies are inferred from the claim text.