MRMC Mesh Antenna Isolation via 3D Stacking
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Solution Overview
Problem
In areas with limited connectivity to broadband Internet infrastructure, existing technologies face challenges in efficiently delivering high-bandwidth digital content to users, particularly in developing nations where broadband rollout is slow or absent.
Innovation Solution
A wireless mesh network (WMN) architecture is implemented, utilizing multi-radio, multi-channel (MRMC) mesh network devices with phased array patch antennas and omnidirectional antennas to establish a self-contained network that distributes content through peer-to-peer connections, reducing reliance on gateway nodes and leveraging cellular connections for control data, enabling content delivery to client devices without direct Internet access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional broadband infrastructure is used for content delivery, then high bandwidth and reliable connectivity are achieved, but deployment cost and infrastructure complexity increase significantly in areas with limited connectivity
Solution Approach 1:
The network is segmented into multiple independent mesh nodes that each operate autonomously, eliminating the need for centralized broadband infrastructure. Each node functions as both client and router, distributing content through peer-to-peer connections rather than relying on a centralized delivery system.
Solution Approach 2:
The mesh network is self-configuring and self-healing, automatically routing content through available nodes without requiring manual infrastructure deployment or centralized control. The network adapts dynamically to node failures and connectivity changes, providing reliable content delivery through distributed intelligence.
2Productivity
If mesh network devices use multiple radios and channels for content distribution, then bandwidth and content delivery capability improve, but antenna isolation and signal interference become critical challenges
Solution Approach 1:
The patent employs three-dimensional antenna placement with vertical stacking and angular orientation. Phased array antennas utilize spatial dimensionality to create directional beams, while omnidirectional antennas are positioned at different heights and angles to achieve frequency diversity and spatial separation, effectively isolating multiple radio channels in three-dimensional space.
Solution Approach 2:
Different antenna regions are optimized for specific functions: phased array elements are positioned and oriented to provide directional coverage for backhaul connections, while omnidirectional antennas are configured for lateral client connections. The antenna structure varies locally to match the specific radiation and isolation requirements of each radio channel.
3Power
If phased array antennas are used for directional communication, then signal focus and directional gain improve, but antenna size and device complexity increase
Solution Approach 1:
The patent combines phased array and omnidirectional antenna functions into a single integrated structure. The same antenna elements serve both directional beamforming and omnidirectional coverage purposes by adjusting excitation patterns, reducing the need for separate antenna systems and simplifying the overall device structure.
Solution Approach 2:
The antenna system is designed to perform multiple functions: it provides directional beamforming for point-to-point mesh connections, omnidirectional coverage for client access, and frequency diversity through multi-band operation. This universal antenna structure eliminates the need for separate specialized antennas for each function.
4Area of stationary object
If the mesh network scales to large sizes to cover extensive areas, then network coverage and accessibility improve, but maintaining adequate bandwidth and managing network complexity become difficult
Solution Approach 1:
The large-scale network is segmented into multiple autonomous mesh domains, each managed independently. This segmentation allows the network to scale horizontally by adding more domains rather than increasing the complexity of a single centralized network, maintaining manageable size while achieving extensive coverage.
Solution Approach 2:
The mesh network dynamically adapts its topology and routing based on real-time conditions. As nodes are added or removed, the network automatically reconfigures paths and load-balances traffic, enabling seamless scaling without manual intervention or increased management complexity.
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 WMN provides adequate bandwidth for high-definition content delivery, scales to large sizes, and ensures content availability even in environments with unpredictable radio conditions and limited infrastructure, offering a cost-effective solution for content distribution equivalent to traditional broadband connections.
Implementation Method 1
Each mesh network device includes a set of phased array patch antennas
Implementation Method 2
The chambers reflect the electromagnetic energy in a different direction
Implementation Method 3
Each mesh network device includes an omnidirectional antenna
Implementation Method 4
The four sidewalls are made of reflective metal to directionally reflect electromagnetic energy
Implementation Method 5
parasitic elements retained at a predetermined distance from each patch element by way of a dielectric
Data Source
AI summary
An apparatus includes an elongated housing having a first plurality of sidewalls that form a first isolation chamber on a first side of the elongated housing. A first printed circuit board (PCB) includes a first patch element, wherein the PCB defines a first plane. A first parasitic element disposed in a second plane, wherein the first parasitic element is retained a predetermined distance from the first patch element in the first plane. A second PCB is disposed within the elongated housing. A first radio is disposed on the second PCB, wherein the first radio is coupled to the first patch element, and wherein the first patch element and the first parasitic element, in response to radio frequency (RF) signals from the first radio, radiate electromagnetic energy in a first direction away from the first isolation chamber.