Duplexer Line-Symmetrical Terminal Arrangement for Circuit Module Mounting
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Solution Overview
Problem
The existing duplexer designs require complex wiring patterns due to point-symmetrical arrangements of transmission and reception terminals, leading to increased manufacturing costs and reduced design flexibility when mounting multiple duplexers on a circuit module.
Innovation Solution
A duplexer design with a common terminal centrally located and first and second terminals arranged in a line-symmetrical configuration relative to the common terminal, along with strategically placed ground terminals to enhance isolation characteristics and prevent electromagnetic coupling, allowing for simpler and more flexible mounting configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If transmission terminals and reception terminals are arranged in a point-symmetrical configuration, then the duplexer can be mounted on the circuit module, but complex wiring patterns are required
Solution Approach 1:
The patent changes the terminal arrangement from point-symmetrical to line-symmetrical configuration. The common terminal is positioned at the center, while transmission and reception terminals are arranged symmetrically along a straight line passing through the common terminal. This asymmetric breaking of the traditional point-symmetrical layout simplifies the wiring patterns required for mounting multiple duplexers on the circuit module.
2Area of stationary object
If multiple duplexers are mounted with common terminals neighboring each other, then space is optimized, but complex wiring patterns are needed due to point-symmetrical arrangements
Solution Approach 1:
By positioning the common terminal at the center and arranging transmission and reception terminals along a straight line through the common terminal, the patent enables adjacent duplexers to share common terminals directly without requiring complex interconnecting wiring patterns, thus optimizing space while reducing wiring complexity.
Solution Approach 2:
The patent enables common terminals of adjacent duplexers to be positioned at the same location, effectively merging them into a single shared terminal. This reduces the total number of terminals required and simplifies the wiring patterns needed to connect multiple duplexers to the circuit module.
3Ease of manufacture
If traditional terminal arrangements are used, then manufacturing follows conventional processes, but design flexibility is reduced
Solution Approach 1:
The line-symmetrical terminal arrangement with the common terminal at the center creates a universal mounting configuration that can be applied to various duplexer designs and circuit module layouts. This standardized yet flexible arrangement allows the same terminal pattern to serve multiple mounting scenarios, enhancing design flexibility while maintaining ease of manufacture.
Data Source
AI summary
In a duplexer, a common terminal is arranged in a central region of a back surface of a main body of the duplexer, a transmission terminal and a reception terminal are arranged on a virtual line that is parallel or substantially parallel with one side of the back surface of the main body and that passes through the common terminal such that the common terminal is sandwiched between the transmission terminal and the common terminal. By arranging a plurality of the duplexers such that the transmission terminals are aligned and the reception terminals are aligned, the common terminals, the transmission terminals, and the reception terminals provided on the respective duplexers are not spaced apart from one another.