Multi-Link Antenna Radiator Layout for Interference Isolation
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Solution Overview
Problem
Short-range communication antennas for multi-link communication face significant interference between radiators, which degrades communication performance, as they transmit and receive signals independently without distinguished transmission and reception times.
Innovation Solution
The proposed short-range communication antenna features a plurality of radiators with a patch-shaped radiating element, surrounded by first and second parasitic elements, and decoupling elements. Each radiator is rotated +90 degrees or −90 degrees compared to adjacent radiators, and the decoupling elements are arranged at λ/2 intervals to improve isolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple radiators are used for multi-link communication, then communication capability is improved, but interference between radiators worsens
Solution Approach 1:
Parasitic elements are introduced as intermediary structures between the radiating elements. These parasitic elements act as mediators that control and redirect electromagnetic energy, preventing direct interference between adjacent radiators while maintaining multi-link communication capability
Solution Approach 2:
The antenna structure employs a nested configuration where parasitic elements are positioned around and between radiating elements in multiple layers. This nested arrangement allows compact integration of interference mitigation structures within the multi-radiator system
2Object-generated harmful factors
If conventional array antenna structures with slit and barrier ribs are used, then some interference mitigation is achieved, but communication performance degradation cannot be sufficiently prevented
Solution Approach 1:
The patent modifies key parameters of the antenna structure including the dimensions, positions, and configurations of parasitic elements relative to radiating elements. By optimizing these parameters, the system achieves superior interference mitigation and maintains communication performance where conventional structures fail
Solution Approach 2:
The antenna employs a composite structure combining radiating elements, parasitic elements, and dielectric substrates with specific electromagnetic properties. This composite configuration creates synergistic effects that enhance interference cancellation and maintain signal integrity
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 effectively alleviates interference between radiators, enhancing communication performance by improving signal isolation and reducing degradation caused by mutual interference.
Implementation Method 1
a first parasitic element formed to surround the radiating element; and a second parasitic element formed to surround the first parasitic element
Implementation Method 2
each of the plurality of radiators is rotated +90 degrees or −90 degrees compared to adjacent radiators
Data Source
AI summary
A short-range communication antenna for multi-link communication includes a plurality of radiators each independently set to transmit and receive different signals and having a predetermined array structure, in which each of the plurality of radiators includes: a patch-shaped radiating element; a first parasitic element formed to surround the radiating element; and a second parasitic element formed to surround the first parasitic element, wherein each of the plurality of radiators is rotated +90 degrees or −90 degrees compared to adjacent radiators.