Single-Feed Antenna Terminal for Shared Low- and High-Band Clearance
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Solution Overview
Problem
Traditional antenna systems for 5G devices cannot efficiently coexist with low-frequency antennas due to spatial and circuit limitations, requiring larger spaces or separate feeding systems, which hinder miniaturization and diversification of terminal hardware.
Innovation Solution
A single-feeding-based method using a filter to isolate and power low-frequency and high-frequency antennas, allowing them to operate in the same clearance area by filtering out interference and controlling power supply between the two bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a 5G array antenna and a low-frequency antenna are located in different clearance areas of a terminal product, then the antennas can operate without interference, but the terminal size increases and miniaturization is hindered
Solution Approach 1:
The patent combines the 5G array antenna and low-frequency antenna into the same clearance area by using a single feeding point that serves both antenna types. The feeding system integrates power supply for both antennas through one power supply unit, eliminating the need for separate clearance areas and enabling terminal miniaturization while maintaining reliable operation of both antenna systems
2Area of stationary object
If a 5G array antenna and a low-frequency antenna are located in the same clearance area with different feeding systems, then the antennas can coexist in compact space, but the circuit solution complexity increases and hardware diversification is limited
Solution Approach 1:
The patent implements a universal feeding system where a single feeding point and power supply unit serve both the 5G array antenna and low-frequency antenna. This multi-functional approach eliminates the need for separate feeding systems, reduces circuit complexity, and provides hardware diversification flexibility while enabling compact antenna coexistence in the same clearance area
3Reliability
If separate feeding systems are used for low-frequency and high-frequency antennas, then each antenna can be optimized independently, but the terminal hardware solution becomes less diverse and more complex
Solution Approach 1:
The patent merges the feeding systems into a single unified system that serves both low-frequency and high-frequency antennas through one feeding point. This combination maintains the ability to optimize each antenna's performance while significantly reducing circuit complexity and increasing terminal hardware solution diversity and adaptability
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
Enables the coexistence of low-frequency and high-frequency antennas in a compact form, optimizing terminal size and hardware diversity by using a single feeding point and minimizing space occupation.
Implementation Method 1
a filter, configured to filter out an interference signal generated by the high-frequency antenna in a low-frequency band when the high-frequency antenna works
Data Source
AI summary
Provided in the present disclosure are an antenna, an antenna power supply method, a single-feeding-based method for combining antennas, and a terminal. The antenna comprises: a low-frequency antenna, a high-frequency antenna, and a filter. The filter is provided between the low-frequency antenna and the high-frequency antenna and isolates the low-frequency antenna and the high-frequency antenna. The low-frequency antenna and the high-frequency antenna use the same feeding point for feeding.