Telescopic Multilayer Antenna Patch for Compact Hood Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing multilayer antennas with a planar design face challenges in adhering to precise tolerances, leading to increased hood size due to the need for additional height compensation, which results in undesirable widening and lengthening of the hood housing.
Innovation Solution
The multilayer antenna design incorporates a split parasitic patch element, comprising a primary and secondary patch element that can telescope into each other, allowing for varying overall height adjustments to compensate for tolerance differences without increasing the hood's height, with the secondary patch element being fastened to the hood to overlap the antenna assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single parasitic patch element is used with fixed height, then the antenna structure is simple, but tolerance variations cause reception problems and require additional height compensation
Solution Approach 1:
The single parasitic patch element is divided into multiple telescopic segments that can move relative to each other. This segmentation allows the overall height to be adjusted to compensate for tolerance variations in the antenna assembly, improving reception reliability without requiring a completely new structure.
Solution Approach 2:
The patch element transitions from a static fixed-height structure to a dynamic telescopic structure. The segments can extend or retract to change the overall height, allowing the antenna to adapt to tolerance variations and maintain optimal reception performance.
2Reliability
If additional height compensation is provided to accommodate tolerance variations, then antenna reception is maintained, but the hood size increases with unwanted widening and lengthening
Solution Approach 1:
The telescopic segments are nested within each other, allowing one segment to be inserted into another. This nesting arrangement enables height adjustment without increasing the lateral footprint, so the hood dimensions remain compact while still accommodating tolerance variations for proper antenna reception.
3Length of stationary object
If the support means thickness is reduced to minimize hood size, then the hood dimensions are optimized, but tolerance compensation capability is lost
Solution Approach 1:
The support means incorporates a telescopic mechanism that provides dynamic height adjustment capability. This allows the support thickness to be optimized for compact hood dimensions while the telescopic segments compensate for manufacturing tolerances, maintaining both compact size and tolerance adherence.
Solution Approach 2:
The telescopic segments can change their effective length by extending or retracting, altering the overall height parameter dynamically. This allows the antenna assembly to adapt to tolerance variations even when the support means itself has minimal thickness, optimizing both hood size and manufacturing precision.
Data Source
AI summary
An improved multilayer antenna has patch assembly divided at least into two. It comprises, in addition to the primary patch element, a secondary patch additional element. The patch element and the patch additional element can be positioned toward one another and at least partly in one another to change the overall height thereof. The patch additional element is held by a separate holding and support means, preferably by a hood covering the entire antenna assembly.