Omnidirectional Antenna Single-Part Construction Isolation
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Solution Overview
Problem
Existing omnidirectional antennas require complex construction processes and additional mechanical support, making them expensive and difficult to manufacture, while simpler constructions often fail to achieve similar performance.
Innovation Solution
The development of antennas with tapering feeds and shorting legs, integrally formed from a single piece of conductive material, allowing for self-supporting structures that mimic inverted cone radiation patterns without the need for welding or complicated assembly, and incorporating a neutral line and slanted decoupling stubs for improved isolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex construction processes with additional mechanical support are used, then antenna performance is improved, but manufacturing cost and difficulty increase
Solution Approach 1:
The patent combines multiple antenna elements, feeds, and mechanical support structures into a single integrated construction. The antenna elements are formed as one continuous piece from a single sheet of conductive material, eliminating the need for separate mechanical supports and reducing assembly steps while maintaining structural integrity and radiation performance
Solution Approach 2:
The antenna is constructed by stamping and folding a single sheet of conductive material into distinct segments and sections. This segmentation allows complex three-dimensional structures to be formed from a simple two-dimensional sheet, enabling intricate antenna geometries to be manufactured through straightforward stamping and folding operations
2Ease of manufacture
If simpler construction methods are used, then manufacturing cost and difficulty are reduced, but antenna performance deteriorates
Solution Approach 1:
The antenna design incorporates pre-formed geometric shapes and configurations in the stamped sheet material that inherently provide the necessary structural support and radiation characteristics. The preliminary shaping of the conductive sheet creates self-supporting structures that eliminate the need for additional mechanical reinforcement while maintaining optimal antenna performance
Solution Approach 2:
The antenna employs curved and folded geometries formed from the stamped sheet to create three-dimensional radiation structures. These curved configurations, formed through folding the sheet at specific angles, provide both structural integrity and the desired radiation patterns without requiring complex assembly or additional support components
3Strength
If multiple separate components are used, then structural support is improved, but device complexity increases
Solution Approach 1:
The patent merges the functions of multiple separate components (antenna elements, feeds, and mechanical supports) into a single integrated structure formed from one continuous piece of conductive material. This consolidation reduces the total number of components while the folded and shaped geometry provides inherent structural support for each functional element
Data Source
AI summary
Exemplary embodiments are disclosed of antennas, antenna systems, and methods of making antennas. In an exemplary embodiment, an antenna generally includes a ground plane and first and second antennas each including a first feed. The antenna system further comprises a neutral line having first and second end portions coupled to the first feed of the respective first and second antennas, and/or one or more decoupling stubs integrally formed from and extending outwardly relative to the ground plane. In another exemplary embodiment, a method of improving isolation between first and second antennas of an antenna system generally includes coupling first and second end portions of a neutral line to a first feed of the respective first and second antennas, and/or integrally forming one or more decoupling stubs from a ground plane.