Multiband Patch Antenna Using Pins for GNSS and UWB Resonance
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Solution Overview
Problem
There is a growing need for antennas that can resonate in multiple frequency bands, including GPS, GLONASS, SDARS, and UWB, to provide accurate location information, especially with the rise of autonomous driving, but existing patch antennas struggle to efficiently cover these bands without increasing size or complexity.
Innovation Solution
A multiband patch antenna design that incorporates an antenna pin passing through the base substrate and patches, allowing for resonance in both GNSS and UWB frequency bands with a simple structure, minimizing size increases by avoiding the need for additional patches or stacking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional patches or stacking is used to cover multiple frequency bands, then frequency band coverage is improved, but device size and structural complexity increase
Solution Approach 1:
The patent makes a single patch antenna structure perform multiple functions by enabling it to resonate in both GNSS and UWB frequency bands through the addition of antenna pins, eliminating the need for separate antenna structures for different frequency bands
Solution Approach 2:
The patent combines GNSS and UWB antenna functions into a single integrated patch structure with shared substrate and grounding, merging what would traditionally require separate antenna elements into one unified design
2Adaptability or versatility
If additional patches or stacking is used to cover multiple frequency bands, then frequency band coverage is improved, but device size increases
Solution Approach 1:
The patent enables a single patch antenna to serve multiple frequency bands (GNSS and UWB) simultaneously, eliminating the need for additional antenna patches that would increase the overall antenna area
Solution Approach 2:
The patent adds vertical dimension functionality by introducing antenna pins that extend through the substrate, enabling UWB resonance in the vertical dimension while the patch maintains its planar GNSS resonance, thus achieving multiband operation without expanding the planar area
3Device complexity
If a simple patch antenna structure is used, then device complexity is reduced, but frequency band coverage is limited
Solution Approach 1:
The patent enhances the simple patch antenna structure to perform multiple functions by adding antenna pins that enable UWB resonance, allowing the same basic patch structure to operate in both GNSS and UWB bands
Solution Approach 2:
The patch antenna structure serves itself for multiple frequency bands through the addition of antenna pins that are integrated into the same substrate and grounding system, eliminating the need for separate dedicated antenna structures
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 design enables a complex antenna capable of outdoor and indoor positioning with UWB functionality while maintaining a compact size, achieving comparable performance to existing antennas in both GNSS and UWB frequency bands.
Implementation Method 1
an upper patch disposed on an upper surface of the base substrate, a lower patch disposed on a lower surface of the base substrate
Implementation Method 2
an antenna pin which is spaced apart from the feed pin and passes through the base substrate and the lower patch
Data Source
AI summary
This disclosure presents a multiband patch antenna which resonates in a second frequency band as well as in a first frequency band, i.e., a GNSS frequency band, by adding an antenna pin to a patch antenna. The presented multiband patch antenna includes a base substrate, an upper patch disposed on an upper surface of the base substrate, a lower patch disposed on a lower surface of the base substrate, a feed pin which passes through the base substrate, the upper patch, and the lower patch, and an antenna pin which is spaced apart from the feed pin and passes through the base substrate and the lower patch.