Antenna Board Assembly With Strip Line Shielded Filter Connection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing MIMO antenna devices face issues with impedance characteristics being easily disrupted and high manufacturing costs due to the complex structure of RF connectors, which are used to connect the PBA and filter.
Innovation Solution
The antenna device incorporates a strip line connector with a simple structure inside the clamshell part, which absorbs assembly tolerance and provides signal shielding through a ground surface, eliminating the need for RF connectors and ensuring stable filter performance by constituting ground shielding lines inside and outside the clamshell.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an RF connector is installed in the filter to connect the PBA and filter, then the electrical connection is achieved, but the impedance characteristics are easily disrupted and the structure becomes complex
Solution Approach 1:
The patent extracts the RF connector from the filter structure and replaces it with a strip line connector integrated into the clamshell part. This separation eliminates the complex RF connector installation while maintaining the electrical connection function, thereby preventing impedance disruptions and simplifying the overall structure.
Solution Approach 2:
The patent merges the connector function with the clamshell part by integrating a strip line connector into the grounding structure. This combination eliminates the need for a separate RF connector, simplifies the structure, and ensures stable impedance characteristics through the integrated grounding design.
2Reliability
If an RF connector is used to connect the PBA and filter, then the connection is established, but the manufacturing cost increases
Solution Approach 1:
The patent replaces the expensive RF connector with a simpler strip line connector that can be integrated into the clamshell part during the molding process. This substitution significantly reduces manufacturing costs while maintaining adequate connection stability for the application.
Solution Approach 2:
The clamshell part is designed to serve multiple functions: it provides grounding, structural support, and electrical connection through the integrated strip line connector. This multi-functionality eliminates the need for separate RF connectors, reducing both component count and manufacturing cost.
3Ease of operation
If a complex RF connector structure is installed, then the connection function is achieved, but the filter constitution becomes complex
Solution Approach 1:
The patent extracts the connector function from the filter assembly and relocates it to the clamshell part. This extraction simplifies the filter constitution by removing the complex RF connector while maintaining the necessary connection function through the integrated strip line connector.
Solution Approach 2:
The patent merges the grounding function and connection function into a single integrated structure. The clamshell part with its integrated strip line connector simultaneously provides grounding and electrical connection, thereby simplifying the filter constitution while maintaining full functionality.
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 simplifies the filter constitution, reduces manufacturing costs, and secures more stable filter performance by preventing impedance disruptions and using a cost-effective, elastic strip line connector for signal line construction.
Implementation Method 1
a strip line connector provided in an inside of the clamshell part to absorb an assembly tolerance between the clamshell parts while being partially deformed by means of an adhesion of the filters
Implementation Method 2
a strip line connector provided in an inside of the clamshell part to absorb an assembly tolerance between the clamshell parts while being partially deformed by means of an adhesion of the filters
Implementation Method 3
to shield a signal by means of a ground surface disposed around the strip line connector while constructing the electrical signal lines
Data Source
AI summary
The present invention relates to an antenna device and, particularly, the antenna device comprises: a printed board assembly (hereinafter, referred to as “PBA”) having a plurality of antenna-related components mounted on one surface thereof, and having a plurality of filters mounted on the other surface thereof, an antenna board which is arranged to be stacked on one surface side of the PBA, and which has a plurality of antenna elements mounted on one surface thereof and connected to construct electrical signal lines with the filters in close contact with the other surface thereof, and clamshell units interposed between the other surface of the PBA and one surface of the filters to perform a signal shielding function, wherein the insides of the clamshell units include strip line connectors which absorb the assembly tolerance between the clamshell units while being partially deformed by means of the adhesion of the filters during close-coupling of the filters, and which shield a signal by means of ground surfaces arranged around the strip line connector while constructing the electrical signal lines, and thus the manufacturing cost of the filters is reduced and impedance properties are prevented from being easily disrupted.