Compact Conductive Loop Antenna for Multi-Band Omni Coverage
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Solution Overview
Problem
The increasing deployment of antennas in wireless communication devices, such as those for Wi-Fi applications, results in aesthetically unappealing designs due to their visible nature, and there is a need for miniaturization to achieve space-saving solutions while maintaining effective communication performance.
Innovation Solution
A compact antenna design featuring a conductive loop with multiple electromagnetically and galvanically coupled conductive members, allowing for a small form factor and omni-directional coverage across multiple frequency bands, including 2.4 GHz and 5 GHz, by utilizing a substrate with strategically arranged conductive elements to minimize footprint and maximize radiation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional antenna designs are used, then communication performance is maintained, but the antenna size and visibility compromise aesthetic appeal and space utilization
Solution Approach 1:
The patent embeds the antenna structure within the housing of the wireless communication device, nesting the antenna inside the existing device volume. The conductive loop is formed on the inner surface of the housing, effectively utilizing the available space without increasing the external dimensions of the device.
Solution Approach 2:
The patent transitions from traditional external three-dimensional antenna structures to a two-dimensional conductive loop pattern formed on the inner surface of the housing. This dimensional reduction allows the antenna to be integrated flush with the device housing, eliminating protrusions and reducing visible footprint while maintaining radiation functionality.
2Adaptability or versatility
If multiple antennas are deployed to improve communication performance and functionality, then wireless capabilities are enhanced, but the number of visible antennas increases reducing aesthetic appeal
Solution Approach 1:
The conductive loop antenna structure is designed to support multiple frequency bands and wireless communication standards (including Wi-Fi and other wireless protocols) through a single integrated antenna design. The antenna can operate in different modes (magnetic dipole, electric dipole) to provide versatile wireless functionality without requiring multiple separate antenna elements.
Solution Approach 2:
The patent combines multiple antenna functions into a single conductive loop structure that can serve multiple wireless communication purposes. The antenna is designed to handle both magnetic and electric field radiation modes, effectively merging what would traditionally require separate antenna elements into one integrated structure that maintains aesthetic appeal.
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 solution achieves miniaturization of antennas while maintaining high gain and omni-directional radiation patterns across desired frequency bands, addressing both aesthetic and space-saving requirements without compromising communication performance.
Implementation Method 1
a first conductive member electromagnetically coupled to the conductive loop
Implementation Method 2
a first conductive member electromagnetically coupled to the conductive loop and galvanically coupled to a radio frequency circuit
Implementation Method 3
maintaining high gain and omni-directional radiation patterns across desired frequency bands
Data Source
AI summary
In accordance with some embodiments, there is provided an apparatus. The apparatus includes a conductive loop; a first conductive member electromagnetically coupled to the conductive loop and galvanically coupled to a radio frequency circuit; a second conductive member arranged across and electromagnetically coupled to the conductive loop; and a third conductive member arranged across and electromagnetically coupled to the conductive loop, the third conductive member being spaced apart from the second conductive member and electromagnetically coupled to the first conductive member.