Adjustable Power Divider for Amplitude-Phase Current Control
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Solution Overview
Problem
Existing power dividers lack the ability to adjust both the amplitude and phase of output currents, limiting their flexibility in implementing variable outputs in different modes, such as common and differential modes.
Innovation Solution
A compact power divider design that includes a main port, two output ports, and two adjustment branches. Each adjustment branch consists of an odd-even mode circuit and an adjustable reactor, allowing for adjustable admittances that can match input and output impedances, and enable arbitrary adjustment of current amplitudes and phases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional power divider structures are used, then the device structure is simple, but the ability to adjust amplitude and phase of output currents is limited
Solution Approach 1:
The patent introduces adjustable reactors (variable inductors or capacitors) in each adjustment branch, allowing the admittance values to be dynamically changed. This enables real-time adjustment of output current amplitude and phase while maintaining the basic power divider structure, thus improving adaptability without significantly increasing structural complexity.
Solution Approach 2:
The power divider is divided into multiple independent adjustment branches (first adjustment branch and second adjustment branch), each with its own adjustable reactor. This segmentation allows independent control of each output port's amplitude and phase, providing fine-grained adjustability while keeping each branch's structure relatively simple.
2Reliability
If fixed admittance structures are used, then the device structure is simple, but impedance matching cannot be achieved under varying conditions
Solution Approach 1:
The patent changes the admittance parameters of the adjustment branches by introducing adjustable reactors. These reactors can vary their reactance values to match different load conditions and input impedances, ensuring reliable impedance matching across varying operating conditions while maintaining a relatively simple adjustable structure.
3Adaptability or versatility
If no adjustment branches are used, then the device structure is simple, but variable outputs in different modes cannot be implemented
Solution Approach 1:
The adjustment branches are designed with universal functionality to support multiple operating modes (common mode and differential mode). The same adjustable reactor structure can provide different admittance values to achieve various output configurations, enabling variable outputs in different modes without requiring separate dedicated circuits for each mode.
Data Source
AI summary
A power divider and an electronic device are provided. The power divider includes: a main port having an input characteristic admittance; a first output port having a first characteristic admittance; a second output port having a second characteristic admittance, where the second and the first characteristic admittances have a predetermined ratio relationship; a first adjustment branch coupled between the main port and the first output port; and a second adjustment branch coupled between the main port and the second output port. The input characteristic admittance is a sum of admittances presented by the first and second adjustment branches at the main port. The admittance presented by the first adjustment branch at the main port and the admittance presented by the second adjustment branch at the main port are adjustable and the input characteristic admittance is enabled to be equal to a sum of the first and the second characteristic admittances.