RF Tuner Module Shielding Extension for Low-Profile Standard Connector Mounting

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Solution Overview

Problem

Existing low-profile RF tuner modules either use non-standard connectors, leading to signal disturbances and impedance mismatch, or are constrained by the size of standard connectors, limiting design flexibility in consumer electronics with space restrictions.

Innovation Solution

Extending one shielding side of the RF tuner module to accommodate a standard RF connector, allowing it to be mounted over the edge of a chassis PCB, thereby reducing the overall height and maintaining signal integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a standard RF connector is used in an RF tuner module, then signal integrity and impedance matching are improved, but the module height increases due to the connector size

Engineering Contradiction:
Improvesignal integrityVSAvoidmodule height
Core Design Contradiction:
ReliabilityVSLength of moving object

Solution Approach 1:

The patent positions the RF connector to extend beyond the edge of the chassis PCB, effectively moving the connector from the vertical stacking dimension to a horizontal extension dimension. This allows the connector to be mounted on the side of the tuner module that faces away from the PCB, enabling standard RF connectors to be used without increasing the overall module height profile.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent creates an asymmetric configuration where the RF connector is positioned asymmetrically relative to the tuner module body, extending beyond one edge of the chassis PCB. This asymmetric placement optimizes space utilization and allows the connector to clear the PCB edge while maintaining a low-profile design.

Inventive Principle:
Principle #4Asymmetry

2Length of moving object

If the module height is reduced for slim designs, then space utilization is improved, but standard RF connectors cannot be properly mounted

Engineering Contradiction:
Improvemodule heightVSAvoidconnector compatibility
Core Design Contradiction:
Length of moving objectVSAdaptability or versatility

Solution Approach 1:

The patent resolves this contradiction by relocating the connector mounting position to extend beyond the PCB edge in the horizontal direction, rather than being constrained to the vertical stacking direction. This dimensional shift enables standard RF connectors to be properly mounted while maintaining a reduced module height profile.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Length of moving object

If non-standard connectors are used to reduce module height, then space utilization is improved, but signal disturbances and impedance mismatch occur

Engineering Contradiction:
Improvemodule heightVSAvoidsignal integrity
Core Design Contradiction:
Length of moving objectVSReliability

Solution Approach 1:

The patent eliminates the need for non-standard connectors by repositioning the standard RF connector to extend beyond the PCB edge. This spatial reconfiguration allows standard connectors with proper impedance matching and signal integrity characteristics to be used in low-profile designs.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS7711343B2Flat turner module with a standard connector
Publication Date: 2010.05.04 CALLAHAN CELLULAR LLC
  • US7711343B2 patent drawing
  • US7711343B2 patent drawing
  • US7711343B2 patent drawing

AI summary

The present invention relates an RF tuner module that comprises one or more standard RF connectors. As, relative big, standard RF connectors are widely in use but at the same time there is a pressure to make products smaller an RF tuner module design is size constrained. The invention describes a measure to make an RF tuner module, with a standard RF-connector, smaller by extending one of the shielding sides of the RF tuner in order to facilitate a proper mounting of the RF connector to the RF tuner module.