Parallel-Plate Waveguide Antenna Layout for Compact Multi-Stream Coverage
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Solution Overview
Problem
Current antenna systems face challenges in efficiently transmitting and receiving wireless signals in multiple directions and frequency ranges within a compact physical space, while maintaining performance and accommodating increased wireless streams.
Innovation Solution
The antenna structure comprises multiple substrate-based units with switchable elements and parasitic elements, allowing for control of radiation patterns and operation in both horizontal and vertical polarizations across different frequency ranges, enabling omnidirectional and directional modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If more antenna elements are incorporated to service increased wireless streams, then channel capacity and wireless stream capability are enhanced, but the physical space required and device complexity increase
Solution Approach 1:
The antenna system is divided into multiple antenna units, each containing specific antenna elements. This segmentation allows the complex multi-element antenna to be managed as modular units, reducing overall system complexity while maintaining high channel capacity through coordinated operation of multiple units.
Solution Approach 2:
Antenna elements are integrated within substrate structures where multiple functional components are nested together. The antenna elements are embedded in substrates that provide both mechanical support and electrical grounding, creating a compact nested arrangement that reduces physical space requirements while accommodating multiple elements.
2Productivity
If more antenna elements are incorporated to service increased wireless streams, then channel capacity and wireless stream capability are enhanced, but the physical space required increases
Solution Approach 1:
The antenna elements are arranged in three-dimensional space utilizing vertical stacking and multi-layer substrate configurations. This dimensional approach allows multiple antenna elements to be packed into a compact footprint by exploiting the third dimension, thereby increasing channel capacity without proportionally increasing the planar area occupied.
Solution Approach 2:
Multiple antenna elements are nested within compact substrate structures where elements are embedded or mounted in integrated arrangements. This nesting allows multiple functional components to occupy overlapping or adjacent spatial volumes, reducing the overall physical envelope required for the antenna system.
3Adaptability or versatility
If switchable elements are added to control radiation patterns, then radiation pattern control capability is improved, but device complexity increases
Solution Approach 1:
The antenna system incorporates switchable elements that can dynamically reconfigure the radiation pattern by selectively activating or deactivating specific antenna elements. This dynamic switching capability allows the antenna to adapt its radiation characteristics in real-time without requiring mechanically movable parts, thereby improving versatility while controlling complexity through electronic switching.
Solution Approach 2:
The switchable elements serve multiple functions: they control radiation patterns, enable beam forming, support multiple frequency bands, and provide polarization diversity. This multi-functionality allows a single set of switchable elements to achieve various antenna configurations and performance modes, improving adaptability without proportionally increasing device 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
This configuration enhances the antenna's ability to manage multiple wireless streams, reduces size, and maintains performance across various frequency ranges, supporting efficient transmission and reception in multiple directions.
Implementation Method 1
An antenna for transmission of a radio-frequency (RF) wave configured to transmit and receive a wireless signal
Data Source
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Figure 3A
AI summary
The disclosed structures and methods are directed to antenna systems configured to transmit and receive a wireless signal in and from different directions. An antenna structure comprises a pair of horizontal-polarization (HP) antenna units forming a first parallel-plate waveguide. One of the HP antenna units and a base unit form a second parallel-plate waveguide. The antenna further comprises a pair of vertical-polarization (VP) antenna units each located in one of the first and second parallel-plate waveguides. Each HP antenna unit comprises inverted F antennas (IFAs) configured to radiate a radio-frequency (RF) waves that are horizontally polarized. Each VP antenna unit comprises VP excitation elements configured to radiate the RF waves that are vertically polarized. A method for manufacturing of the antenna structure is also disclosed.