Multiple Feed Slot Antenna with Shielding
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Solution Overview
Problem
The increasing demand for wireless communication capabilities in devices strains existing resources, particularly as more devices share the same frequency band, leading to oversaturation and challenges in signal transmission and reception, especially with higher frequency spectrums that affect hardware efficiency and form factor, and require additional space for antenna components.
Innovation Solution
The implementation of front-shielded, coplanar waveguide, direct-fed, cavity-backed slot antennas with multiple feed slots, which utilize a bottom shielding structure, a slot antenna, and a top shielding structure with aperture windows to radiate electromagnetic waveforms efficiently, allowing for compact design and reduced interference with electronic circuitry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional antenna designs are used to support wireless communication at higher frequencies, then wireless communication capability is improved, but device size increases and space for other components is reduced
Solution Approach 1:
The patent combines multiple antenna elements into a single integrated antenna array structure that can support multiple frequency bands and communication standards simultaneously. The antenna array is integrated directly into the device housing, merging the antenna function with the structural component, thereby reducing overall space requirements while maintaining wireless communication capability across multiple frequency spectrums
Solution Approach 2:
The patent transitions from traditional planar antenna designs to a three-dimensional antenna array structure with elements arranged in multiple layers and dimensions. This dimensional expansion allows the antenna to achieve greater effective radiating area and improved performance without proportionally increasing the footprint space, enabling compact integration into modern devices
2Adaptability or versatility
If more antenna components are added to support multiple frequency bands, then wireless communication versatility is improved, but device complexity increases
Solution Approach 1:
The patent designs a universal antenna array structure that can operate across multiple frequency bands and support different communication standards simultaneously. The same physical antenna elements can be configured to serve different functions through electronic beamforming and signal processing, eliminating the need for separate dedicated antennas for each frequency band or communication standard, thereby reducing system complexity
Solution Approach 2:
The patent implements dynamically controllable antenna elements with adjustable beamforming capabilities and electronic steering. The antenna system can dynamically reconfigure its radiation patterns, beam directions, and active elements based on communication requirements, allowing a single antenna structure to adaptively serve multiple frequency bands and communication scenarios without requiring separate static antenna designs for each
3Volume of moving object
If antenna size is reduced to fit constrained device space, then space for other components is improved, but signal transmission quality deteriorates
Solution Approach 1:
The patent employs a nested antenna array structure where multiple antenna elements are arranged in concentric or layered configurations. This nesting allows the antenna system to achieve effective radiating area comparable to larger traditional antennas while maintaining a compact overall volume. The nested arrangement optimizes space utilization and maintains signal transmission quality through constructive interference patterns from the multiple nested elements
Solution Approach 2:
The patent utilizes composite structural designs combining different materials with complementary electromagnetic properties. The antenna elements incorporate materials with optimized dielectric constants, magnetic permeability, and conductivity to enhance radiation efficiency and signal quality within the constrained volume. These composite material solutions allow compact antenna elements to achieve performance characteristics traditionally associated with larger structures
4Productivity
If higher frequency spectrums are used to increase data transmission capacity, then wireless communication performance is improved, but interference with electronic circuitry increases
Solution Approach 1:
The patent introduces electromagnetic shielding structures and filtering elements as intermediaries between the high-frequency antenna elements and the device's electronic circuitry. These intermediary components selectively block or attenuate harmful electromagnetic interference while allowing the desired high-frequency communication signals to pass through, thereby enabling high data transmission capacity without compromising circuit reliability
Solution Approach 2:
The patent implements localized electromagnetic shielding and grounding structures positioned specifically around the antenna elements and sensitive circuit areas. Rather than providing uniform shielding throughout the entire device, the shielding is strategically placed only where high-frequency interference is most problematic, minimizing the impact on signal quality while effectively reducing interference with electronic circuitry in the high-frequency communication bands
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 solution enables effective millimeter and microwave waveform transmission within a compact form factor, reducing space requirements and minimizing interference with other electronic components, thus addressing the challenges posed by higher frequency spectrums in wireless communication systems.
Implementation Method 1
a top shielding structure with aperture windows to radiate electromagnetic waveforms efficiently
Data Source
AI summary
Multiple feed, front-shielded, coplanar waveguide, direct-fed, cavity-backed slot antennas are described. Various implementations form an antenna unit capable of millimeter waveform and/or microwave waveform transmissions. An antenna comprises a conductive plate that includes an aperture. The aperture has a shape that extends along an axis that bisects the aperture into first and second bisected portions, the first bisected portion having a first geometry type, and the second portion having a second geometry type that is a bilateral symmetry shape type of the first geometry type. In implementations, the aperture is configured to radiate waveforms within a frequency range from about between 600 Megahertz (MHz) to 72 Gigahertz (GHz) by applying multiple signal feeds to the conductive plate.