Amplifier Module With External Impedance Matching for Multi-Band Signals
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Solution Overview
Problem
Existing communication circuits with amplifier modules face difficulties in amplifying signals across various frequency bands due to the limitations of their internal matching circuits, which are designed for specific frequency bands, making it challenging to support multiple frequency bands without increasing the number of amplifier modules.
Innovation Solution
Implementing an impedance matching circuit outside the amplifier module, allowing the communication circuit to perform impedance matching between amplifiers, enabling the amplification of signals across multiple frequency bands using the same amplifier module without increasing the number of modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the matching circuit is designed inside the amplifier module for a specific frequency band, then the amplifier module can efficiently amplify signals in that frequency band, but it cannot amplify signals in other frequency bands
Solution Approach 1:
The patent separates the matching circuit from the amplifier module, making them independent components. The matching circuit is designed outside the amplifier module and can be selectively connected to different amplifiers based on frequency band requirements. This segmentation allows the amplifier module to be reused across multiple frequency bands by changing only the matching circuit configuration.
Solution Approach 2:
The amplifier module is designed to be universal and support multiple frequency bands through external matching circuits. By making the amplifier module frequency-agnostic and allowing different matching circuits to be connected externally, a single amplifier module can serve multiple frequency bands (e.g., 5G NR bands, 4G LTE bands) without requiring dedicated amplifier modules for each band.
2Adaptability or versatility
If multiple amplifier modules are used to support various frequency bands, then each frequency band can be optimized, but the device complexity and number of components increase
Solution Approach 1:
The patent makes the amplifier module universal by designing it to work with multiple frequency bands through external matching circuits. This allows a single amplifier module to replace multiple frequency-specific amplifier modules, reducing the total quantity of amplifier modules needed in the system.
Solution Approach 2:
The matching circuit is extracted from the amplifier module and placed outside as a separate component. This extraction allows the amplifier module to be decoupled from frequency-specific constraints, enabling it to be reused across different frequency bands by simply changing the external matching circuit configuration.
3Shape
If the matching circuit is integrated inside the amplifier module, then the module structure is compact, but the frequency band support is limited to what the internal matching circuit can handle
Solution Approach 1:
The patent segments the amplifier module into two independent parts: the amplifier itself and the matching circuit. By separating these functions, the amplifier can maintain its compact structure while the matching circuit can be externally configured for different frequency bands, thus preserving both structural integrity and frequency flexibility.
Solution Approach 2:
The external matching circuit acts as an intermediary between the amplifier module and the signal source/load. This intermediary component enables frequency band adaptation without modifying the amplifier module's internal structure, allowing the amplifier to work with multiple frequency bands while maintaining its original compact design.
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 allows the communication circuit and electronic device to support amplification of signals across various frequency bands, enhancing flexibility and reducing the need for multiple amplifier modules, while maintaining efficient signal amplification.
Implementation Method 1
a first matching circuit disposed outside the amplifier module and performing impedance matching between the first amplifier and the second amplifier
Data Source
AI summary
A communication circuit and an electronic device comprising the communication circuit are provided. The communication circuit includes an amplifier module including a first amplifier and a second amplifier for amplifying a signal amplified by the first amplifier, and a first matching circuit that is disposed outside the amplifier module and performs impedance matching between the first amplifier and the second amplifier, wherein the amplifier module includes a first terminal for outputting, to the outside, the signal amplified by the first amplifier, and a second terminal for a signal that is input to the second amplifier, and the first matching circuit may be connected to the amplifier module via the first terminal and the second terminal.