Multi-Band Antenna Assembly With Ground Plane Space Saving
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Solution Overview
Problem
Existing antenna systems struggle to cover multiple frequency bands efficiently, leading to communication bottlenecks and practicality issues, especially in small devices, due to the use of antenna arrays or single geometrically complex antennas that are space-consuming and costly to manufacture.
Innovation Solution
A multi-band antenna assembly with a cover and radome housing multi-band and dual-band radiator portions, utilizing a compact design with a first and second internal volume, and a multi-band multi-element antenna that includes radiating elements on a ground plane, allowing for efficient coverage of multiple frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an antenna array of various antenna configurations is used to capture a greater portion of the 3GPP spectrum, then the frequency band coverage is improved, but the space occupied is too large and the device becomes impractical for small devices
Solution Approach 1:
The patent combines multiple antenna functions into a single integrated antenna structure that supports multiple frequency bands (700 MHz to 2.7 GHz and beyond) through a unified design, eliminating the need for separate antenna elements for different bands while maintaining comprehensive spectrum coverage
Solution Approach 2:
The single antenna is designed to perform multiple functions across different frequency ranges by incorporating geometric configurations that resonate at multiple frequency bands, allowing one antenna to replace what would traditionally require multiple specialized antennas
2Volume of moving object
If a single geometrically complex antenna is used to cover multiple frequency bands, then the space occupied is reduced, but the manufacturing complexity and cost increase
Solution Approach 1:
The antenna structure is divided into distinct geometric portions (first and second portions with different geometries) that each contribute to resonating at specific frequency bands, allowing the complex multi-band functionality to be achieved through modular geometric segments rather than a monolithic complex structure
Solution Approach 2:
Different portions of the antenna have different geometric configurations optimized for specific frequency ranges, with the first portion designed for lower bands and the second portion for higher bands, allowing each segment to be relatively simple while the whole achieves multi-band coverage
3Device complexity
If a single antenna configuration is used to cover a wider frequency band, then the device simplicity is improved, but the useable bandwidth is limited by its geometrical configuration
Solution Approach 1:
The antenna incorporates adjustable or reconfigurable elements that allow the geometric configuration to be modified or adapted to resonate at different frequency bands, enabling a single antenna structure to dynamically adjust its electrical characteristics to cover a wider frequency range beyond what a fixed geometry could achieve
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 solution provides efficient and compact coverage of multiple frequency bands, reducing space requirements and manufacturing costs while maintaining performance, suitable for devices like tablets and vehicles.
Implementation Method 1
radio antennas that are used for transmitting and receiving information via electromagnetic waves... antennas that are configured to electromagnetically resonate at frequencies within the dedicated bandwidth
Data Source
AI summary
An antenna assembly can include a case, a first ground plane, and a multi-band multi-element antenna. The case can include a body portion and a door pivotably coupled to the body portion. The first ground plane can be coupled to the body portion and can divide the case into a first internal volume and a second internal volume. The multi-band multi-element antenna can include at least one multi-band radiating element coupled to a top side of the first ground plane. The antenna assembly can include a tablet computer and/or a display screen.