Multi-band Antenna Assembly on Dual PCB Bases
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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 comprising two PCB bases with multi-band antenna elements on each, including low-, mid-, and high-band radiating elements, configured to resonate across various frequency bands, allowing for compact and efficient wireless communication.
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 frequency band coverage is improved, but device size and space requirements increase making it impractical for small devices
Solution Approach 1:
The patent combines multiple antenna elements (first and second antenna elements with different geometries) into a single integrated antenna assembly. This merging allows the system to support multiple frequency bands (700 MHz-2.7 GHz and beyond) while maintaining a compact form factor suitable for small devices, resolving the contradiction between frequency band coverage and device size.
Solution Approach 2:
The antenna assembly is designed to perform multiple functions across different frequency bands. The first antenna element handles 700 MHz-2.7 GHz bands while the second antenna element extends coverage to higher frequencies. This multi-functionality allows a single compact antenna assembly to replace what would traditionally require multiple separate antennas or an antenna array.
2Adaptability or versatility
If a single geometrically complex antenna is used to capture a greater portion of the 3GPP spectrum, then frequency band coverage is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent segments the antenna system into two distinct but integrated antenna elements, each with specific geometric configurations optimized for different frequency ranges. The first antenna element is optimized for 700 MHz-2.7 GHz while the second element handles higher frequency bands. This segmentation simplifies the design and manufacturing of each individual element while achieving comprehensive multi-band coverage when combined.
Solution Approach 2:
Each antenna element is designed with specific local geometric properties optimized for its target frequency range. The first antenna element has geometry suited for lower frequency bands (700 MHz-2.7 GHz) while the second element has different geometry for higher bands. This local optimization allows each element to be relatively simple in design while the combination provides extensive frequency coverage.
3Adaptability or versatility
If an antenna array is used to support multiple LTE bands, then frequency band coverage is improved, but manufacturing and assembly cost increase
Solution Approach 1:
The patent merges multiple antenna functions into a single integrated assembly that can be manufactured and assembled as one unit. The first and second antenna elements are positioned in fixed spatial relationships within a common structure, eliminating the need for complex multi-antenna array assembly processes. This integration significantly reduces manufacturing and assembly costs while maintaining support for multiple LTE 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
The multi-band antenna assembly provides wide frequency coverage, optimizing performance across multiple LTE bands, reducing complexity and cost while maintaining a compact form factor.
Implementation Method 1
antennas that are configured to electromagnetically resonate at frequencies within the dedicated bandwidth
Data Source
AI summary
An antenna assembly may include at least two PCB bases. Each PCB base may include a first multi-band antenna element, and a second multi-band antenna element, formed on each PCB base. The first multi-band antenna element and the second multi-band antenna elements can include one or more low-band radiating elements, one or more mid-band radiating elements; and one or more high-band radiating elements.