Multi-band Antenna with Shape-changing Radiating Element
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Solution Overview
Problem
Existing antenna systems struggle to cover a wide frequency range efficiently, particularly above 8 GHz, and are often bulky and costly to manufacture, making them impractical for small devices.
Innovation Solution
The development of a multi-band antenna system that includes a cover with side walls and a top wall, a base, an internal ground plane, and a PCB with multiple radiating elements. The radiating elements are configured to change shape when the cover is coupled to the base, allowing for a wider frequency range of 450 MHz to 8 GHz.
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 coverage is improved, but the space occupied increases making it impractical for small devices
Solution Approach 1:
The patent combines multiple antenna configurations into a single integrated antenna structure that can operate across multiple frequency bands (450 MHz to 8 GHz and beyond). The antenna uses a single radiating element with specific geometric parameters that enable it to resonate at multiple frequencies, eliminating the need for separate antenna elements for different frequency ranges.
Solution Approach 2:
The antenna is designed as a universal multi-band antenna that can serve multiple communication standards and frequency bands simultaneously. By configuring the radiating element with specific dimensions and geometric characteristics, the antenna achieves broad spectrum coverage including 3GPP bands and beyond, making a single antenna structure capable of performing functions that traditionally required multiple specialized antennas.
2Adaptability or versatility
If a single geometrically complex antenna is used to capture a greater portion of the 3GPP spectrum, then the frequency coverage is improved, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent achieves multi-band operation by carefully selecting and optimizing specific geometric parameters of the radiating element, such as its length, width, and dimensional ratios. By adjusting these parameters according to the formula provided in the patent, the antenna can be tuned to resonate at multiple frequency bands without requiring complex geometric structures. The key parameter is the ratio of the radiating element's dimensions, which determines its resonant frequencies.
3Adaptability or versatility
If an antenna array is used to achieve wider frequency band coverage, then the functionality is improved, but the manufacturing and assembly difficulty and cost increase
Solution Approach 1:
The patent merges multiple antenna functions into a single antenna element, eliminating the need for assembling multiple separate antenna components. This single-element design simplifies the manufacturing process and assembly operations compared to traditional antenna arrays, while still achieving wide frequency band coverage through optimized geometric parameters.
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 provides a compact, cost-effective antenna system that covers a broader frequency range than traditional systems, enhancing wireless communication capabilities while reducing manufacturing complexity and costs.
Implementation Method 1
radio antennas that are used for transmitting and receiving information via electromagnetic waves
Data Source
AI summary
An antenna assembly can include a cover, a base, an internal ground plane, a PCB, and a multi-band antenna. The base can be coupled to the cover to define an internal volume, with the internal ground plane positioned there between. The PCB can include a base PCB portion and a first PCB portion. The multi-band antenna can comprise a radiating element formed on the first PCB portion, the radiating element comprising an upright radiating portion and a head radiating portion. The radiating element can be configured to move from a first configuration prior to engagement with the cover to a second configuration when the cover is coupled to the base. In the first configuration, the upright radiating portion can be coplanar to the head radiating portion, and in the second configuration, the upright radiating portion can be at an angle relative to the head radiating portion.