Edge-Frame Antenna Assembly for Multi-Band Bandwidth Tuning
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Solution Overview
Problem
Existing antennas struggle to achieve multiple resonance frequencies and sufficient bandwidth, particularly as communication technologies advance, such as in 5G communication, where antennas need to transmit information across various frequency bands effectively.
Innovation Solution
The proposed antenna assembly incorporates a parasitic branch arranged near a second branch, which increases the bandwidth of the resonance frequency and enhances communication performance by allowing the antenna to operate effectively across multiple frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional antenna structure is used, then the structure is simple, but the bandwidth and resonance frequency adjustment capability are insufficient
Solution Approach 1:
The antenna is divided into multiple independent branches (first branch, second branch, third branch, and parasitic branch), each capable of resonating at different frequencies. This segmentation allows the antenna to achieve multiple resonance frequencies and broader bandwidth while maintaining a relatively simple overall structure based on the base frame.
Solution Approach 2:
The patent utilizes the edge region of the base frame as a two-dimensional layout space for arranging multiple branches. By effectively using the edge region's length and width dimensions, the antenna achieves complex multi-frequency functionality without significantly increasing the overall footprint or structural complexity.
2Adaptability or versatility
If multiple resonance frequencies are achieved through complex structures, then bandwidth increases, but manufacturing complexity increases
Solution Approach 1:
Multiple antenna branches are integrated into a single planar structure on the base frame, sharing common grounding and support infrastructure. This merging approach enables multi-resonance functionality while simplifying manufacturing compared to assembling separate antenna components.
Solution Approach 2:
The resonance frequencies are adjusted by changing geometric parameters (length, width, position) of the branches rather than using different materials or complex tuning mechanisms. This allows easy manufacturing with standard fabrication processes while achieving customizable multi-frequency performance.
3Reliability
If the antenna operates across multiple frequency bands, then communication performance improves, but the antenna structure becomes more complex
Solution Approach 1:
The antenna structure is designed to perform multiple functions simultaneously: each branch can operate as an independent resonator for different frequency bands, and together they provide broad-band communication capability. The parasitic branch specifically enhances high-frequency band performance while the overall structure remains relatively simple.
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
This configuration enables the antenna to achieve a larger bandwidth in high frequency bands, improving communication performance and adaptability to different applications by allowing direct adjustment of the resonance frequency.
Implementation Method 1
a parasitic branch having a ground point, where the parasitic branch is arranged in the layout region and forms a second slot with the second branch
Implementation Method 2
a first slot is formed between the third branch and the first branch and between the third branch and part of the second branch
Data Source
AI summary
Disclosed in the embodiments of the present disclosure are an antenna assembly and a communication terminal, where a layout region is arranged at an edge position on a base frame, and a radiation pattern and a parasitic branch are arranged together on the layout region. Thus, in an aspect, when the communication terminal is assembled, it is convenient to observe the connection between a feed point and a ground point of the antenna assembly, thereby improving the assembly efficiency of the communication terminal. In another aspect, a parasitic branch is arranged near a second branch, so that the antenna has a larger bandwidth in a high frequency band. In yet another aspect, configuring a shape of a first slot, a second slot, and the parasitic branch enables direct adjustment to a resonance frequency of the antenna, which improves the adaptability of the antenna to different applications.