Multi-Polarized Antenna Assembly with Acute Angle Radiative Elements
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communications face limitations in audio/video/data transport and internet connectivity due to signal obstructions and topographical changes, leading to off-axis signal reception and multi-path cancellations, which existing antennas fail to adequately address.
Innovation Solution
A multi-polarized, wide-band antenna assembly with radiative elements positioned at acute angles relative to an imaginary plane and a conductive ground reference, providing spatial and polarization diversity to capture signals effectively across various frequencies and orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional antennas are used for wireless communications, then device simplicity is maintained, but signal reception is insufficient in obstructed environments due to off-axis signal reception and multi-path cancellations
Solution Approach 1:
The antenna is divided into multiple radiative elements (first radiative element, second radiative element, etc.) with different orientations and polarizations. Each element is positioned at specific acute angles relative to an imaginary plane, creating spatial diversity that captures signals from multiple paths and polarizations, thereby improving reliability in obstructed environments.
Solution Approach 2:
The patent introduces spatial diversity by positioning radiative elements in three-dimensional space at different acute angles and orientations. This multi-dimensional arrangement allows the antenna to capture signals from various elevation angles and polarizations, transforming a single-axis reception problem into a multi-dimensional solution that overcomes obstructions and multi-path effects.
2Reliability
If antenna gain is increased to improve signal capture, then signal reception is improved, but the solution becomes insufficient for multi-path and off-axis signal challenges
Solution Approach 1:
The antenna assembly is designed with multiple radiative elements that serve multiple functions simultaneously: capturing line-of-sight signals, receiving off-axis signals, and handling multi-path reflections. Each element is oriented at different acute angles and polarizations, enabling the single antenna structure to perform multiple signal capture functions that adapt to various propagation conditions.
Solution Approach 2:
The antenna employs polarization diversity with radiative elements oriented at different angles and polarizations, allowing it to dynamically adapt to changing signal conditions. As signals reflect, refract, and scatter through different paths, the antenna can selectively capture signals through the appropriately oriented elements, providing dynamic adaptability to various propagation environments.
3Reliability
If single-polarization antennas are used, then device complexity is reduced, but signal capture is insufficient when radio waves experience altered polarizations due to reflection, refraction, and scattering
Solution Approach 1:
The antenna is segmented into multiple radiative elements, each with distinct polarization orientations. The first radiative element, second radiative element, and additional elements are positioned at different acute angles and polarizations relative to the imaginary plane, allowing the system to capture signals with different polarization states that result from reflection, refraction, and scattering.
Solution Approach 2:
The patent changes the polarization parameter by incorporating radiative elements with different polarization orientations. Each element is configured at specific acute angles and polarizations, enabling the antenna to capture radio waves that have undergone polarization changes due to propagation through obstructed environments, thereby maintaining reliable signal capture.
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 assembly enhances signal reception and throughput by utilizing preferred polarization paths and spatial diversity, minimizing signal loss and ensuring stable connectivity in obstructed environments.
Implementation Method 1
A first radiative element 22 and a second radiative element 24, each having a first end and a second end, are comprised of an electrically conductive material
Implementation Method 2
The assembly further comprises an electrically conductive ground reference
Data Source
AI summary
An antenna assembly is provided for receiving and transmitting radio frequency signals over an enhanced frequency band. A first radiative element has a first end, a second end, and an associated length, and is comprised of an electrically conductive material. The first end of the first radiative element is electrically connected to an antenna feed at an apex and at least a portion of the first radiative element is disposed outwardly away from the apex at an acute angle relative to, and on a first side of, an imaginary plane intersecting the apex. A second radiative element has a first end and a second end and is comprised of an electrically conductive material. The first end of the second radiative element is electrically connected to the antenna feed and the first radiative element at the apex. The second end of the second radiative element has an associated height above the imaginary plane that is less than the product of the length of the first element and the sine of the acute angle at which the first element is disposed outwardly from the apex. The assembly further comprises an electrically conductive ground reference.