Spiraling Surface Antenna Horizontal Polarization
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Solution Overview
Problem
The electromagnetic spectrum is overcrowded, leading to interference in wireless communications, which can hinder successful transmission and reception, particularly due to the prevalence of vertically polarized signals in overlapping frequency bands.
Innovation Solution
The development of horizontally-polarized omni-directional antennas with a spiraling surface design that allows for efficient radio frequency energy access and emission, reducing interference by emitting signals parallel to the Earth's surface, thereby minimizing cross-talk with vertically polarized signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vertically polarized signals are used in overcrowded frequency bands, then wireless communication coverage is achieved, but electromagnetic interference increases
Solution Approach 1:
The patent changes the polarization parameter of the antenna from vertical to horizontal orientation. This parameter change allows the antenna to operate in crowded frequency bands while reducing interference with vertically polarized signals, thereby improving communication reliability without increasing electromagnetic interference
Solution Approach 2:
The patent applies horizontal polarization specifically to the antenna element design, creating a localized solution that addresses interference in specific frequency bands. The horizontal polarization is implemented through the specific geometric configuration of the antenna structure, allowing it to coexist with vertically polarized systems in the same spectrum
2Reliability
If larger antennas are used to maintain performance, then communication performance is improved, but device size increases
Solution Approach 1:
The patent transitions from traditional linear antenna structures to a three-dimensional spiraling surface configuration. This dimensional change allows the antenna to achieve omnidirectional radiation patterns and improved performance characteristics without proportionally increasing the overall device volume, as the spiral structure efficiently utilizes spatial volume
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
These antennas achieve reliable communication by reducing interference, allowing for more efficient use of the electromagnetic spectrum and maintaining performance comparable to larger antennas while being compact and aesthetically pleasing.
Implementation Method 1
an antenna comprises a surface, shaped in such a way as to have a spiral cross-section, the surface forming an internal cavity, an internal channel to the external surface, and an internal wall common to the cavity and the channel. Further, an example embodiment comprises a longitudinal opening allowing radio frequency (RF) energy access to and from the cavity and the channel
Implementation Method 2
the surface forming an internal cavity, an internal channel to the external surface, and an internal wall common to the cavity and the channel
Data Source
AI summary
Antennas that can transceive signals in a horizontally-polarized, omni-directional manner are described. In an example embodiment, an antenna comprises a spiraling surface having a spiral cross-section, the surface forming an internal cavity, an internal channel to the external surface, and an internal wall common to the cavity and the channel. Further, an example embodiment comprises a longitudinal opening allowing access to the cavity and the channel by a transmission feed line. Alternate embodiments comprise various cross-sectional configurations, and may also comprise a radome at least partially surrounding the antenna spiraling surface and supporting structure.