Adjustable Duplexer Balancing Network Impedance
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Solution Overview
Problem
As communication networks become more complex, electronic devices face challenges in efficiently communicating over multiple frequencies while maintaining compact dimensions, leading to the need for multiple duplexers and filters, which increases size and complexity.
Innovation Solution
An adjustable and tunable duplexer system is implemented, utilizing a four-port reciprocal network with a balancing network that adjusts impedance to isolate power amplifiers from low noise amplifiers, allowing the duplexer to handle various frequencies and antenna impedances, reducing the number of necessary components and enhancing flexibility in device design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple duplexers and filters are used to handle multiple frequencies, then communication versatility is improved, but device size and complexity increase
Solution Approach 1:
The patent implements a single duplexer system that can handle multiple frequencies by dynamically reconfiguring its impedance characteristics. The duplexer uses a network of reactive elements (inductors and capacitors) that can be tuned to different impedance values, allowing one component to perform the function of multiple frequency-specific duplexers and filters, thereby reducing overall device complexity while maintaining multi-frequency communication capability
Solution Approach 2:
The patent employs dynamic impedance adjustment mechanisms within the duplexer system, allowing the reactive elements to be reconfigured in real-time to match different antenna impedances and frequency requirements. This dynamic adaptability enables a single duplexer to replace multiple static frequency-specific components, resolving the contradiction between versatility and complexity
2Adaptability or versatility
If multiple duplexers and filters are used to handle multiple frequencies, then communication versatility is improved, but device size increases
Solution Approach 1:
The patent merges the functions of multiple frequency-specific duplexers and filters into a single integrated duplexer system. By combining these separate components into one unified structure with reconfigurable impedance elements, the system achieves multi-frequency handling capability while occupying significantly less physical space than would be required for multiple discrete components
Solution Approach 2:
The single duplexer system is designed to perform multiple functions across different frequency bands, replacing what would traditionally require multiple separate components. This multi-functionality directly reduces the overall device area while maintaining the ability to communicate across multiple frequencies
3Ease of manufacture
If fixed impedance duplexers are used, then manufacturing simplicity is improved, but adaptability to different antenna impedances deteriorates
Solution Approach 1:
The patent implements dynamic impedance adjustment capabilities within the duplexer system through reconfigurable reactive elements. These elements can be tuned to match different antenna impedances while maintaining a relatively simple base manufacturing process, thus resolving the contradiction between ease of manufacture and adaptability
Solution Approach 2:
The patent changes the impedance parameters of the duplexer system dynamically through reconfiguration of reactive elements, allowing the same physical component to adapt to different antenna impedances without requiring multiple fixed-impedance versions, thereby maintaining manufacturing simplicity while achieving broad adaptability
Data Source
AI summary
A power distributing duplexer system is provided. In some aspects, the system includes a duplexer configured to couple an antenna to a transmitter and a receiver. The system also includes a balancing network coupled to the duplexer. The balancing network includes a network impedance. The balancing network is configured to adjust the network impedance to match an antenna impedance of the antenna. The balancing network includes a plurality of balancing network modules coupled to the duplexer. Each of the plurality of balancing network modules is configured to receive a portion of an output voltage from the duplexer.