RF Power Amplifier Circuit With Shared 2G/3G/4G Signal Paths
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Solution Overview
Problem
The existing wireless communication systems require multiple radio frequency power amplifiers to handle different mobile communication signals, leading to increased manufacturing costs, debugging complexity, and board space occupation due to the need for multiple amplifiers to accommodate varying power outputs and harmonic suppression requirements across 2G, 3G, and 4G networks.
Innovation Solution
A radio frequency amplification circuit that uses a single radio frequency power amplifier for multiple network types and frequency bands, with an additional filtering component for 2G signals to perform harmonic power suppression and impedance conversion, eliminating the need for multiple amplifiers and simplifying the circuit design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple radio frequency power amplifiers are used to handle different mobile communication signals (2G, 3G, 4G), then the system can meet the varying power outputs and harmonic suppression requirements for each network type, but the manufacturing cost, debugging complexity, and board space occupation increase
Solution Approach 1:
The patent applies universality by designing a single radio frequency power amplifier that can handle multiple mobile communication signals (2G, 3G, 4G) across different frequency bands. The amplifier is configured with adjustable parameters to meet the varying power outputs and harmonic suppression requirements for each network type, eliminating the need for separate amplifiers for each signal type while maintaining comprehensive signal processing capability
Solution Approach 2:
The patent utilizes parameter changes by adjusting the operating parameters of the single power amplifier to adapt to different network requirements. By modifying parameters such as output power, frequency band, and harmonic suppression levels, the amplifier can effectively process 2G, 3G, and 4G signals with different characteristics, resolving the contradiction between handling diverse signals and maintaining system simplicity
2Adaptability or versatility
If multiple radio frequency power amplifiers are used to accommodate varying power outputs and harmonic suppression requirements, then the system can support multiple network types, but the manufacturing cost increases
Solution Approach 1:
The patent reduces manufacturing cost by implementing a universal power amplifier design that supports multiple network types (2G, 3G, 4G) through software or configuration control rather than requiring separate hardware amplifiers for each network. This multi-functional approach allows a single amplifier unit to be manufactured and deployed across all network types, significantly reducing component costs and assembly complexity
3Manufacturing precision
If multiple radio frequency power amplifiers are used to handle different signals, then the system can meet specific power and harmonic requirements, but the debugging difficulty increases
Solution Approach 1:
The patent simplifies debugging by using parameter changes instead of hardware changes. A single power amplifier's parameters (frequency, power output, harmonic suppression) can be adjusted via software or control signals to match different network requirements, eliminating the need to debug multiple amplifiers and reducing the complexity of detecting and measuring system performance across different network types
4Adaptability or versatility
If multiple radio frequency power amplifiers are used, then the system can process multiple wireless communication signals with different requirements, but the board space occupation increases
Solution Approach 1:
The patent applies merging by combining the functions of multiple power amplifiers into a single amplifier unit. By integrating the capability to handle 2G, 3G, and 4G signals within one amplifier, the board space required is reduced from multiple amplifier footprints to a single amplifier footprint, while maintaining the adaptability to process all three signal types through parameter adjustment
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces manufacturing costs, debugging difficulties, and board space usage by processing multiple wireless communication signals with a single amplifier, while ensuring effective harmonic suppression and impedance matching for 2G signals, thereby enhancing overall system efficiency.
Implementation Method 1
The radio frequency power amplifier is configured to perform radio frequency amplification on a power of a modulated first wireless communication signal
Implementation Method 2
The filtering component is configured to perform filtering processing on the amplified second wireless communication signal
Implementation Method 3
The isolated filtering component is configured to perform isolated filtering on a transmitted signal and a received signal
Implementation Method 4
the impedance matching component, configured to perform impedance matching on the radio frequency power amplifier according to a load impedance of the transmitting antenna
Data Source
AI summary
A radio frequency amplification processing circuit includes: a radio frequency power amplifier, a transmitting antenna and a filter element; the radio frequency power amplifier is configured to perform radio frequency amplification on a modulated first wireless communication signal, and transmit, with a first line, the amplified first wireless communication signal to the transmitting antenna for transmission, or perform radio frequency amplification on a modulated second wireless communication signal, and transmit, with a second line, the amplified second wireless communication signal to the filter element; and the filter element is configured to filter the amplified second wireless communication signal, and transmit, also with the second line, the filtered second wireless communication signal to the transmitting antenna for transmission.