Compact Multi-Band Antenna Layout for Isolation and Bandwidth
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Solution Overview
Problem
Traditional antenna systems face challenges in providing a balance of performance, size, and cost-effectiveness, particularly in supporting multiple frequency bands, and often suffer from interference and limited bandwidth due to their geometrical configuration.
Innovation Solution
The antenna system incorporates a design with an internal ground plane, a base PCB, and a plurality of antennas, featuring individual ground planes and alternating arrangements of antenna elements, which are electrically connected to reduce interference and enhance performance while maintaining a compact configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an antenna array with various antenna configurations is used to capture a greater portion of the frequency spectrum, then the frequency bandwidth coverage is improved, but the space occupied increases making it impractical for small devices
Solution Approach 1:
The patent combines multiple antenna elements (first and second antenna elements) into a single integrated antenna structure that operates across multiple frequency bands. This merging approach achieves the frequency bandwidth coverage of an antenna array while occupying minimal space suitable for small wireless devices.
Solution Approach 2:
The antenna is designed with multiple antenna elements that can operate across different frequency bands (including LTE and WiFi bands), making it a universal antenna capable of handling multiple communication protocols and frequency ranges within a single structure, thereby eliminating the need for separate antennas for each band.
2Area of stationary object
If a single antenna configuration is used to reduce space occupation, then the space efficiency is improved, but the useable bandwidth is limited by its geometrical configuration
Solution Approach 1:
The antenna is divided into multiple distinct antenna elements (first antenna element and second antenna element) with different geometrical configurations. Each element is optimized for specific frequency ranges, and together they provide broad bandwidth coverage while maintaining a compact overall structure.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement of multiple antenna elements with different orientations and configurations. By exploiting dimensional diversity rather than relying on a single planar configuration, the antenna achieves extended bandwidth coverage within a compact volume suitable for small devices.
3Ease of manufacture
If traditional antenna design methods are used, then the manufacturing process is simple, but the balance of performance, size, and cost effectiveness is insufficient
Solution Approach 1:
The patent optimizes multiple parameters including the dimensions, spacing, and orientation of antenna elements to achieve superior performance across multiple frequency bands. By carefully adjusting these parameters, the design achieves an optimal balance between performance, size, and manufacturability that traditional single-configuration antennas cannot provide.
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 system achieves improved isolation, reduced radio frequency interference, and increased gain, supporting multiple frequency bands with a compact form factor, suitable for applications in small devices.
Implementation Method 1
radio antennas that are used for transmitting and receiving information via electromagnetic waves
Implementation Method 2
antennas that are configured to electromagnetically resonate at frequencies within the dedicated bandwidth
Data Source
AI summary
An antenna assembly can include an internal ground plane, a base PCB, and a plurality of antennas. The base PCB can be positioned above the internal ground plane. The base PCB can include a plurality of individual ground planes spaced circumferentially about a center of the base PCB, with the plurality of individual ground planes being electrically connected to the internal ground plane. Each antenna of the plurality of antennas can be electrically connected to an individual ground plane of the plurality of individual ground planes. The plurality of antennas can include a plurality of multi-band antennas and one or more WiFi antennas.