Omnidirectional MIMO Antenna System with Electronic Beam Steering
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Solution Overview
Problem
Current wireless networking technologies, particularly for 5G, require more precise control over the direction, polarization, and power level of electromagnetic radiation, which existing antenna systems struggle to achieve due to inertia and limited configurability.
Innovation Solution
A 360-degree omnidirectional multiple-input multiple-output (MIMO) wireless system that integrates a sophisticated radiating structure capable of re-configuring its beam into finite solid-angular sub-regions, allowing for rapid direction changes and independent operation of each antenna element with distinct carrier frequencies, polarizations, and power levels, while presenting a simpler interface for high-frequency operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If precise control of electromagnetic radiation direction and polarization is implemented, then beam directionality and configurability are improved, but device complexity increases
Solution Approach 1:
The antenna system is divided into multiple independently controllable antenna elements, each capable of being individually configured for specific directions and polarizations. This segmentation allows precise beam control through selective activation and phase control of individual elements without requiring complex mechanical movement of the entire antenna structure.
Solution Approach 2:
The system employs dynamic phase control and amplitude adjustment of each antenna element to electronically steer beams and change polarization states in real-time. This dynamic control replaces mechanical reorientation mechanisms, achieving precise directional control through electrical signals while reducing mechanical complexity.
2Speed
If rapid beam re-direction is achieved, then beam agility and response speed are improved, but mechanical inertia limits the speed
Solution Approach 1:
The system replaces mechanical beam steering mechanisms with electronic phase control and signal processing. By adjusting the phase and amplitude of signals fed to each antenna element, the beam direction can be changed instantaneously without mechanical movement, eliminating the inertia limitation and achieving rapid beam re-direction.
3Adaptability or versatility
If multiple radios access a shared radiating structure, then system versatility and resource utilization are improved, but frequency interference and signal isolation become problematic
Solution Approach 1:
Each antenna element is configured with specific local characteristics including dedicated frequency ranges, polarization states, and directional patterns. This local quality differentiation allows multiple radios to share the radiating structure by assigning different spatial and frequency resources to each radio, minimizing interference through spatial separation and frequency selective beamforming.
Data Source
AI summary
A three-dimensional, 360 degree, omnidirectional multiple-input multiple-output wireless systems is described herein. The multiple-input multiple-output wireless system is comprised of a plurality of radio inputs, a plurality of radio-frequency converters, an RF signal distribution network, a plurality of transceivers, and a plurality of antennas. The multiple-input multiple-output wireless system may further have a plurality of planar stacks.