Multiplexing Antenna Circuit for 4G 5G Signal Separation
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Solution Overview
Problem
The independence of 5G and 4G modules in mobile terminals leads to complex circuit layouts and a large number of antennas, occupying more circuit area and increasing the size of mobile devices, due to the need for separate circuits and antennas to support both systems.
Innovation Solution
A communication circuit with a signal reception multiplexing circuit, including a multiplexing antenna, a signal separation module, and separate demodulation modules for 5G and 4G signals, allowing these signals to share antennas and circuits, reducing the number of antennas and simplifying the layout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If 5G and 4G modules are kept independent to support both systems, then system compatibility and signal reception capability are improved, but circuit area occupation and device size increase
Solution Approach 1:
The patent combines 5G and 4G modules into a single integrated communication module, allowing both communication standards to share the same antenna and circuit resources. This merging approach maintains support for both 5G and 4G systems while significantly reducing the circuit area occupied compared to independent modules.
Solution Approach 2:
The integrated communication module is designed to perform multiple functions - supporting both 5G and 4G communication standards through a unified architecture. The module can dynamically switch between or simultaneously handle both communication protocols, making it a universal solution that replaces separate dedicated modules.
2Reliability
If separate antennas are used for 5G and 4G to ensure signal quality, then communication reliability is improved, but the number of antennas and layout complexity increase
Solution Approach 1:
The patent merges the antenna functions by using a single shared antenna for both 5G and 4G communication. The integrated module includes a switching mechanism that directs the shared antenna to connect to either the 5G or 4G module based on communication requirements, thereby reducing antenna quantity and layout complexity while maintaining communication reliability through proper signal routing.
3Area of stationary object
If antenna sharing is implemented to reduce the number of antennas, then device size is reduced, but signal loss increases due to filtering
Solution Approach 1:
The patent introduces a switching mechanism as an intermediary component between the shared antenna and the communication modules. This switch enables selective connection of the antenna to either 5G or 4G modules without requiring complex filtering, thereby reducing signal loss while still achieving antenna sharing and device size reduction.
Data Source
AI summary
Disclosed are a communication circuit and a communication device. The communication circuit comprises a signal reception multiplexing circuit comprising a multiplexing antenna, a signal separation module connected to the multiplexing antenna, and a first signal demodulation module and a second signal demodulation module respectively connected to the signal separation module. The multiplexing antenna is configured to receive a first signal and a second signal of the same frequency band and to send the signals received to the signal separation module. The signal separation module is configured to separate the first signal and the second signal from the signals received, to send the first signal separated to the first signal demodulation module for demodulation processing, and to send the second signal separated to the second signal demodulation module for demodulation processing.