Hybrid Duplexer Circuit With Phase Shifting for Signal Isolation
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Solution Overview
Problem
Existing extended duplexer circuits for wireless transceivers are large, complex, and expensive, with high insertion loss and integration challenges, particularly at higher frequencies, making them unsuitable for resource-constrained devices like mobile devices supporting 6G technologies.
Innovation Solution
A duplexer circuit arrangement that eliminates one hybrid and incorporates a splitter and phase shifter circuit, using two electrical branches with capacitors and inductors to reduce size and complexity while maintaining signal isolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an extended duplexer circuit with two duplexers and three hybrids is deployed, then signal isolation is improved, but device size and cost increase significantly
Solution Approach 1:
The patent extracts and eliminates one hybrid component from the traditional extended duplexer circuit configuration. By removing one hybrid and its corresponding load, the circuit achieves the same signal isolation performance with fewer components, directly reducing device size and complexity while maintaining the core functionality of separating transmit and receive signals.
Solution Approach 2:
The patent merges the functionality of the eliminated hybrid into the remaining circuit components. The splitter and phase shifter circuit is integrated to perform signal distribution and phase adjustment that would traditionally require the removed hybrid, combining multiple functions into fewer elements to reduce overall device size.
2Reliability
If an extended duplexer circuit with two duplexers and three hybrids is deployed, then signal isolation is improved, but device complexity and cost increase
Solution Approach 1:
The patent removes one hybrid component from the circuit, directly reducing the number of components and interconnections. This extraction simplifies the circuit architecture, reduces assembly complexity, and lowers overall device cost while preserving the essential signal isolation capability through the remaining two hybrids and the splitter/phase shifter configuration.
Solution Approach 2:
The remaining circuit components are designed to perform multiple functions. The splitter and phase shifter circuit not only distributes signals but also provides phase control that compensates for the removed hybrid's functionality, allowing fewer components to achieve the same overall system performance.
3Volume of stationary object
If a splitter and phase shifter circuit is used instead of one hybrid, then device size is reduced, but signal isolation may be compromised
Solution Approach 1:
The phase shifter circuit acts as an intermediary that adjusts the phase of signals passing through the splitter. By introducing controlled phase shifts, the circuit compensates for the absence of the removed hybrid, maintaining proper signal isolation between transmit and receive paths while keeping the device size reduced.
Solution Approach 2:
The patent changes the operational parameters of the remaining circuit components, specifically introducing phase shifting parameters to the splitter circuit. By adjusting phase parameters rather than relying solely on the traditional hybrid structure, the circuit achieves signal isolation with a more compact configuration.
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
The proposed duplexer circuit arrangement achieves reduced size, complexity, and loss, enabling successful deployment in resource-constrained devices by improving signal isolation and integration, particularly for 6G applications.
Implementation Method 1
a splitter and phase shifter circuit coupled between the third port and the first and second duplexers
Data Source
AI summary
An apparatus is disclosed for a duplexer circuit arrangement. In example aspects, the apparatus includes at least one duplexer circuit arrangement having a first port, a second port, and a third port. The duplexer circuit arrangement includes a first duplexer, a second duplexer, a first hybrid, and a second hybrid. The first hybrid is coupled between the first port and the first duplexer and between the first port and the second duplexer. The second hybrid is coupled between the second port and the second duplexer and between the second port and the first duplexer. The duplexer circuit arrangement also includes a splitter and phase shifter circuit coupled between the third port and the first and second duplexers.