APT Power Amplifier Using One PMIC for Dual-Polarization RF
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Solution Overview
Problem
Conventional RF power amplifiers for mobile communication devices require multiple power management circuits to handle RF signals in different polarizations, leading to increased footprint, power consumption, and costs.
Innovation Solution
An average power tracking (APT) power amplifier apparatus employing a single power management integrated circuit (PMIC) to provide a unified voltage for multiple power amplifier circuits, allowing them to amplify RF signals in different polarizations efficiently, thereby reducing the number of PMICs needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple power management circuits are employed to provide different supply voltages to different sets of power amplifiers for different polarizations, then the power amplifiers can operate efficiently for each polarization, but the footprint, power consumption, and costs of the power amplifier apparatus increase
Solution Approach 1:
The patent combines multiple power management circuits into a single shared power management circuit that serves multiple power amplifier sets for different polarizations. This merging approach reduces the overall footprint and component count while maintaining the ability to provide appropriate supply voltages to each power amplifier set through shared control resources.
Solution Approach 2:
The single power management circuit is designed to perform multiple functions by managing power supply for power amplifier sets across different polarizations. It universally handles voltage regulation and power distribution for all power amplifier sets, eliminating the need for dedicated power management circuits for each polarization.
2Reliability
If multiple power management circuits are employed to provide different supply voltages to different sets of power amplifiers for different polarizations, then the power amplifiers can operate efficiently for each polarization, but the power consumption and costs of the power amplifier apparatus increase
Solution Approach 1:
The patent combines multiple power management circuits into a single shared power management circuit that serves multiple power amplifier sets for different polarizations. This merging approach reduces the overall footprint and component count while maintaining the ability to provide appropriate supply voltages to each power amplifier set through shared control resources.
Solution Approach 2:
The single power management circuit is designed to perform multiple functions by managing power supply for power amplifier sets across different polarizations. It universally handles voltage regulation and power distribution for all power amplifier sets, eliminating the need for dedicated power management circuits for each polarization.
3Reliability
If multiple power management circuits are employed to provide different supply voltages to different sets of power amplifiers for different polarizations, then the power amplifiers can operate efficiently for each polarization, but the costs of the power amplifier apparatus increase
Solution Approach 1:
The patent combines multiple power management circuits into a single shared power management circuit that serves multiple power amplifier sets for different polarizations. This merging approach reduces the overall footprint and component count while maintaining the ability to provide appropriate supply voltages to each power amplifier set through shared control resources.
Solution Approach 2:
The single power management circuit is designed to perform multiple functions by managing power supply for power amplifier sets across different polarizations. It universally handles voltage regulation and power distribution for all power amplifier sets, eliminating the need for dedicated power management circuits for each polarization.
Data Source
AI summary
An average power tracking (APT) power amplifier apparatus is provided. In a non-limiting example, the APT power amplifier apparatus includes multiple sets of power amplifier circuits configured to amplify a radio frequency (RF) signal(s) for transmission in different polarizations (e.g., vertical and horizontal). In examples disclosed herein, the APT power amplifier apparatus can be configured to employ a single power management integrated circuit (PMIC) to provide an APT voltage to all of the power amplifier circuits for amplifying the RF signal(s). By employing a single PMIC in the APT power amplifier apparatus, it is possible to reduce footprint, power consumption, and costs of the APT power amplifier apparatus.