Reconfigurable RF Diplexer for Multi-Protocol Signal Segregation
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Solution Overview
Problem
Wireless communications devices require RF circuitry that is low cost, small, simple, flexible, and efficient to support multiple wireless communications protocols with varying performance requirements, while minimizing size, cost, and power consumption.
Innovation Solution
A reconfigurable RF receive diplexer incorporating a first and second hybrid RF coupler and reconfigurable RF filter circuitry, allowing operation in multiple modes to handle RF signals across different frequency bands, with the ability to segregate and process RF signals effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate RF circuits are used to support different wireless communications protocols, then protocol compatibility and performance requirements are met, but device size, cost, and power consumption increase
Solution Approach 1:
The diplexer enables a single RF circuit to perform multiple functions by supporting different wireless communications protocols through frequency-based signal separation. The circuit can handle both first RF signals (e.g., LTE/WiFi) and second RF signals (e.g., Bluetooth) simultaneously, eliminating the need for separate dedicated circuits for each protocol while maintaining protocol-specific performance requirements
2Adaptability or versatility
If multiple separate RF circuits are used to support different wireless communications protocols, then protocol compatibility is achieved, but device size increases
Solution Approach 1:
The patent combines multiple RF signal handling functions into a single integrated diplexer circuit. By merging the处理能力 for first RF signals and second RF signals into one circuit structure with frequency-selective paths, the physical footprint is reduced compared to using separate circuits for each protocol
3Adaptability or versatility
If multiple separate RF circuits are used to support different wireless communications protocols, then protocol compatibility is achieved, but power consumption increases
Solution Approach 1:
A single RF circuit performs multiple protocol functions, reducing the total power consumption compared to running multiple separate circuits. The frequency-selective signal paths enable the circuit to handle different protocols (first RF and second RF signals) efficiently within one power domain
4Productivity
If frequency-selective signal paths are implemented, then RF signal processing efficiency is improved, but circuit complexity increases
Solution Approach 1:
The diplexer circuit is segmented into frequency-selective paths that separate first RF signals and second RF signals based on their frequency characteristics. This segmentation allows independent optimization of each signal path while maintaining overall circuit efficiency
Data Source
AI summary
A reconfigurable RF receive diplexer, which includes a first hybrid RF coupler, a second hybrid RF coupler, and reconfigurable RF filter circuitry, is disclosed. The reconfigurable RF receive diplexer receives a first adjunct RF antenna receive signal via a first isolation port to provide a first adjunct RF receive signal via a second main port. The reconfigurable RF receive diplexer further receives a first RF transmit signal via a first main port to provide a first RF antenna transmit signal via the first isolation port. The reconfigurable RF receive diplexer operates in each of a group of operating modes, such that during a first operating mode, a carrier frequency of the first adjunct RF antenna receive signal is within a first RF communications band; and during a second operating mode, a carrier frequency of the first adjunct RF antenna receive signal is within a second RF communications band.