Multi-Mode Multi-Band RF Power Amplifier Configuration
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Solution Overview
Problem
Traditional multi-mode multi-band RF communications devices require complex and costly circuitry to support various wireless communications protocols, including different modes and frequency bands, leading to size, cost, and power consumption challenges in portable devices.
Innovation Solution
The implementation of multi-mode multi-band RF power amplification circuitry with PA control circuitry and a digital communications interface, which configures amplification circuitry for selected modes and frequency bands using a look-up table and switching circuitry to optimize performance and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional multi-mode multi-band wireless communications devices use complex RF front-end circuitry to support various communication modes and frequency bands, then communication versatility is improved, but device size increases
Solution Approach 1:
The patent implements a universal RF power amplifier capable of operating in multiple communication modes (linear and non-linear) and multiple frequency bands through a single integrated circuit. The amplifier uses switching circuitry and look-up tables to dynamically reconfigure its operation, allowing one amplifier to replace multiple dedicated amplifiers, thereby reducing device size while maintaining communication versatility across different modes and bands
Solution Approach 2:
The RF power amplifier employs dynamic reconfiguration capabilities through switching circuitry controlled by mode selection signals and frequency band identification. The amplifier can dynamically switch between linear and non-linear operating modes, and adjust its parameters via look-up tables based on the selected frequency band, enabling a single static hardware structure to perform multiple functions adaptively
2Adaptability or versatility
If traditional multi-mode multi-band wireless communications devices use complex RF front-end circuitry to support various communication modes and frequency bands, then communication versatility is improved, but manufacturing cost increases
Solution Approach 1:
The patent implements a universal RF power amplifier capable of operating in multiple communication modes (linear and non-linear) and multiple frequency bands through a single integrated circuit. The amplifier uses switching circuitry and look-up tables to dynamically reconfigure its operation, allowing one amplifier to replace multiple dedicated amplifiers, thereby reducing device size while maintaining communication versatility across different modes and bands
Solution Approach 2:
The patent combines multiple previously separate functions into a single RF power amplifier circuit. The switching circuitry integrates mode selection and frequency band identification logic within the amplifier itself, merging what would traditionally require separate control circuits and multiple amplifier devices into one unified integrated solution, simplifying manufacturing and reducing component count
3Adaptability or versatility
If traditional multi-mode multi-band wireless communications devices use complex RF front-end circuitry to support various communication modes and frequency bands, then communication versatility is improved, but power consumption increases
Solution Approach 1:
The RF power amplifier employs dynamic reconfiguration capabilities through switching circuitry controlled by mode selection signals and frequency band identification. The amplifier can dynamically switch between linear and non-linear operating modes, and adjust its parameters via look-up tables based on the selected frequency band, enabling a single static hardware structure to perform multiple functions adaptively
Solution Approach 2:
The patent utilizes parameter changes to optimize power consumption based on operating conditions. The look-up tables store pre-calibrated parameters for different frequency bands and communication modes, allowing the amplifier to switch between parameter sets rather than maintaining fixed high-power settings. This enables the amplifier to operate efficiently in non-linear mode when appropriate, reducing power consumption while maintaining communication versatility
Data Source
AI summary
Circuitry, which includes multi-mode multi-band radio frequency (RF) power amplification circuitry, power amplifier (PA) control circuitry, and a PA-digital communications interface (DCI) is disclosed according to one embodiment of the circuitry. The PA control circuitry is coupled between the amplification circuitry and the PA-DCI, which is coupled to a digital communications bus, and configures the amplification circuitry. The amplification circuitry includes at least a first RF input and multiple RF outputs, such that at least some of the RF outputs are associated with multiple communications modes and at least some of the RF outputs are associated with multiple frequency bands. Configuration of the amplification circuitry associates one RF input with one RF output, and is correlated with configuration information defined by at least a first defined parameter set. The PA control circuitry stores at least a first look-up table (LUT), which provides the configuration information.