RF PA Mid Coupling Switch for Compact Feedback Detection
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Solution Overview
Problem
The high costs and space occupation of switches and high area occupation of multiple switches in the feedback detection channel of multiple switches in the feedback detection channel of radio-frequency systems, and the complexity of wiring and interference in radio-frequency systems due to the use of multiple switches for coupling and switching control of radio-frequency signals.
Innovation Solution
A radio-frequency PA Mid device with a coupling unit and a coupling switch, including a coupling input and output port, which allows for internal signal coupling and detection without the need for external switches, reducing space and costs, and improving isolation and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple switches are disposed in the feedback detection channel to support coupling switching control of multiple radio-frequency signals, then the power detection of different coupled signals can be achieved, but the costs increase and great area is occupied
Solution Approach 1:
The patent combines multiple switch functions into a single coupling switch by integrating multiple directional couplers (first directional coupler and second directional coupler) that share common ports. This merging approach allows one switch to perform the function of multiple switches, reducing the overall area occupied while maintaining the capability to detect power of different coupled signals.
Solution Approach 2:
The coupling switch is designed with multi-functionality to handle both forward coupled signals and reverse coupled signals through shared ports (first coupling port, second coupling port, third coupling port). This universal design enables a single switch to perform coupling switching control for multiple radio-frequency signals, eliminating the need for multiple separate switches and thereby reducing area occupation.
2Adaptability or versatility
If multiple switches are disposed in the feedback detection channel to support coupling switching control of multiple radio-frequency signals, then the power detection of different coupled signals can be achieved, but the costs increase
Solution Approach 1:
The patent merges multiple switch components into a single integrated coupling switch structure. By combining the functions of multiple switches into one component with shared ports and integrated directional couplers, the bill of materials is reduced, manufacturing complexity is lowered, and overall costs are decreased while maintaining full power detection capability for multiple signals.
Solution Approach 2:
The coupling switch is designed as a universal component that can handle multiple signal types (forward and reverse coupled signals) through its multiple ports. This multi-functional design eliminates the need to manufacture and assemble multiple separate switches, thereby reducing production costs while achieving comprehensive power detection functionality.
3Ease of operation
If multiple switches are used for coupling and switching control of radio-frequency signals, then signal coupling control can be achieved, but the wiring complexity increases and interference occurs
Solution Approach 1:
The patent merges multiple coupling functions into a single integrated coupling switch structure with shared ports. This integration reduces the number of separate wiring connections needed, as the shared ports and integrated directional couplers eliminate redundant wiring paths, thereby simplifying the overall wiring layout and reducing wiring complexity while maintaining full signal coupling control capability.
Data Source
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AI summary
Provided is a radio-frequency Power Amplifier Modules including Duplexers (PA Mid) device. The radio-frequency PA Mid device has a coupling output port (CPLOUT), a coupling input port (CPLIN), and an antenna port (ANT). The radio-frequency PA Mid device includes: a transceiving circuit (110) configured to support transceiving control of a radio-frequency signal; a coupling unit (120) including an input port (a), an output port (b), a first coupling port (c) configured to couple the radio-frequency signal and output a forward coupled signal, and a second coupling port (d) configured to couple a reflected signal of the radio-frequency signal and output a reverse coupled signal; and a coupling switch (130) configured to selectively output, via the coupling output port (CPLOUT), the forward coupled signal, the reverse coupled signal, or an external coupled signal received via the coupling input port (CPLIN).