Multilayer Antenna Integration via Parasitic Box Element
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Solution Overview
Problem
Conventional multilayer antennas have a bulky construction that limits their compactness and versatility, particularly when integrating multiple services like SDARS and GPS, as they require separate antenna elements for different frequency ranges and services.
Innovation Solution
The integration of a parasitic box-shaped patch element above the radiation plane of a primary patch antenna, where the secondary patch antenna can be partially or fully buried within, sharing a common ground plane and dielectric substrate, and utilizing metallised layers on the secondary antenna's circumferential rims to form the parasitic patch element, allowing for a more compact and efficient design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate antenna elements are used for different services (SDARS and GPS), then signal reception capability for multiple services is improved, but device complexity and physical bulk increase
Solution Approach 1:
The patent combines multiple antenna functions into a single integrated structure. The GPS antenna is integrated within the SDARS antenna assembly, with the GPS patch antenna positioned on the rear surface of the SDARS radiation panel. This merging approach allows both SDARS and GPS signal reception capabilities while reducing the overall physical bulk and structural complexity compared to using completely separate antenna elements.
Solution Approach 2:
The GPS antenna is nested within the SDARS antenna structure. Specifically, the GPS patch antenna is positioned on the rear surface of the SDARS radiation panel, and the SDARS radiation panel itself is positioned in front of the GPS patch antenna. This nesting arrangement enables both antenna functions to coexist in a compact configuration, with the GPS antenna effectively embedded within the overall SDARS antenna assembly.
2Volume of moving object
If a parasitic patch element is added above the radiation plane, then compactness is improved, but device complexity increases
Solution Approach 1:
The parasitic patch element serves multiple functions simultaneously. It acts as part of the SDARS antenna structure, providing the radiation panel that emits SDARS signals. At the same time, it serves as the mounting surface for the GPS patch antenna on its rear surface. This multi-functionality reduces the need for additional separate structural elements, thereby improving compactness while limiting the increase in overall device complexity.
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 configuration results in a significantly more compact antenna arrangement that can efficiently receive satellite and terrestrial signals across multiple services, enhancing performance and reducing physical bulk while maintaining or improving signal reception capabilities.
Implementation Method 1
an antenna, the additional patch antenna B shown in FIG. 1 is arranged in a (passive or parasitic) conductive patch element, which is arranged above the radiation plane of a first or primary patch antenna
Data Source
AI summary
A multilayer antenna arrangement is distinguished in particular by the following features: a further patch antenna (B) comprising a dielectric carrier and a radiation plane is provided above the base portion or central portion of the patch arrangement, the radiation plane being provided on the upper side, opposite the base portion or central portion, of the dielectric carrier, and the further patch antenna (B) is buried at least in part in the parasitic patch arrangement, which is configured so as to be box-shaped or box-like, and/or the parasitic patch arrangement which is configured so as to be box-shaped or box-like is formed, completely or in part, as electrically conductive planes, which are provided on the further patch antenna (B) at least in partial regions on the circumferential edge surface or outer surface thereof.