Printed Multiband Antenna Layout for Compact Wi‑Fi 6E Coverage
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Solution Overview
Problem
There is a need for multiband antennas that support the Wi-Fi 6 GHz band and have smaller sizes to accommodate the miniaturization trend of electronic devices while increasing providable frequency bands.
Innovation Solution
A multiband printed antenna design featuring a radiation unit and a grounding unit, with specific geometric configurations allowing operation in multiple frequency bands, including 2.4 GHz to 2.5 GHz and 5 GHz to 7.2 GHz, optimized for compact spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the antenna size is reduced to accommodate miniaturization trends, then the antenna can be integrated into smaller electronic devices, but the available frequency bands and radiation performance may be limited
Solution Approach 1:
The radiation unit is divided into multiple radiation parts (first radiation part, second radiation part, third radiation part) with different geometric configurations. Each radiation part is responsible for radiating in specific frequency bands, allowing the compact antenna to cover multiple frequency bands including 2.4 GHz, 5 GHz, and 6 GHz Wi-Fi bands simultaneously
Solution Approach 2:
The antenna structure extends in multiple spatial dimensions with radiation parts arranged at different positions and orientations. The first radiation part extends in a first direction, the second radiation part extends in a second direction, and the third radiation part extends in a third direction, utilizing three-dimensional space efficiently to achieve multiband performance in a compact footprint
2Ease of manufacture
If the antenna structure is simplified for ease of manufacture, then production cost and complexity are reduced, but the ability to support multiple frequency bands is compromised
Solution Approach 1:
The antenna integrates multiple functional radiation parts and grounding structures into a single printed circuit board assembly. The radiation unit combines first, second, and third radiation parts with a feed-in portion, while the grounding unit integrates first, second, and third grounding parts, all manufactured as one piece using standard PCB fabrication processes
Solution Approach 2:
The antenna structure is designed to perform multiple functions: the radiation unit supports Wi-Fi 2.4 GHz, 5 GHz, and 6 GHz bands, while the grounding unit provides both grounding function and additional radiation enhancement. The feed-in portion can accommodate different feeding configurations, making the antenna universally applicable to various wireless communication standards
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 antenna achieves stable operation and high efficiency in these frequency bands with minimal reflection loss, supporting the Wi-Fi 6 GHz band and adapting to the popularity of Wi-Fi 6E technology and electronic device miniaturization.
Implementation Method 1
The radiation unit includes a first radiation part extended horizontally, and a second radiation part which is extended upward and then is bent rightward from a left of a top edge of the first radiation part
Implementation Method 2
The grounding unit includes a first extension extended vertically, a second extension straightly extended leftward from a top of a first left edge of the first extension, a grounding part straightly extended leftward from a bottom of the first left edge of the first extension, and a third extension straightly extended leftward from a middle of the first left edge of the first extension
Data Source
AI summary
A multiband printed antenna includes a radiation unit and a grounding unit. The radiation unit is arranged at a right of a circuit board. The radiation unit includes a first radiation part, and a second radiation part which is extended upward and then is bent rightward from a left of a top edge of the first radiation part. The grounding unit is arranged at a left of the circuit board. The grounding unit is separated from the radiation unit. The grounding unit includes a first extension, a second extension straightly extended leftward from a top of a first left edge of the first extension, a grounding part straightly extended leftward from a bottom of the first left edge of the first extension, and a third extension straightly extended leftward from a middle of the first left edge of the first extension.