Multi-band Patch Antenna Module for Wi-Fi Band Integration
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Solution Overview
Problem
Conventional patch antennas require significant space to accommodate separate antennas for the 2.4 GHz and 5 GHz Wi-Fi bands, making miniaturization challenging for mobile terminals and electronic devices.
Innovation Solution
A multi-band patch antenna module is designed with an inner radiation patch having different horizontal and vertical lengths and an outer radiation patch on a dielectric layer, allowing for signal transmission and reception across both bands using a single antenna, minimizing space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate antennas for 2.4 GHz and 5 GHz bands are mounted, then signal transmission and reception for both bands is achieved, but mounted space increases
Solution Approach 1:
The patent combines two separate antenna functions (2.4 GHz and 5 GHz band antennas) into a single integrated antenna structure. The antenna module includes a feeding section with feeding holes and a radiation section with resonant elements that operate across both frequency bands simultaneously, eliminating the need for separate physical antennas for each band.
Solution Approach 2:
The antenna module is designed as a multi-functional component that serves dual purposes: it transmits and receives signals for both the 2.4 GHz band (first frequency band) and the 5 GHz band (second frequency band). The radiation section includes elements with different resonant frequencies that enable the single antenna to perform multiple communication functions.
2Adaptability or versatility
If multiple antennas for different frequency bands are mounted, then all frequency bands are covered, but device miniaturization becomes difficult
Solution Approach 1:
The patent merges multiple antenna functions into one integrated structure. The radiation section contains first and second resonant elements with different resonant frequencies, allowing a single antenna module to cover multiple frequency bands (2.4 GHz and 5 GHz) without requiring separate antenna components, thus enabling device miniaturization.
3Ease of manufacture
If conventional square radiation patches are used, then GPS and SDARS frequencies are supported, but 2.4 GHz and 5 GHz Wi-Fi bands cannot be served simultaneously
Solution Approach 1:
The patent transitions from conventional symmetric square radiation patches to an asymmetric rectangular radiation patch design. The radiation section includes first and second resonant elements with different dimensions and orientations, allowing the antenna to support multiple frequency bands (2.4 GHz and 5 GHz Wi-Fi bands) while maintaining ease of manufacturing through standardized PCB fabrication processes.
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
The module effectively transmits and receives signals across both Wi-Fi bands, reducing signal interference and maintaining stable connections by increasing the bandwidth of the 5 GHz band, thus minimizing frequency interference and space usage.
Implementation Method 1
The patch antenna is formed to have a resonance characteristic in a frequency band of GPS, SDARS and the like
Data Source
AI summary
Disclosed is a multi-band patch antenna module, which forms an inner radiation patch having different horizontal and vertical lengths and an outer radiation patch spaced from the inner radiation patch on one surface of a dielectric layer, and transmits and receives signals of a 2.4 GHz band and a 5 GHz band. The multi-band patch antenna module disclosed includes the dielectric layer, the outer radiation patch formed with an insertion hole and formed on one surface of the dielectric layer, and the inner radiation patch inserted into the insertion hole and formed on one surface of the dielectric layer; and a horizontal length of the inner radiation patch is different from a vertical length of the inner radiation patch.