Radially Compliant RF Connector for Small-Pitch Serviceability

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Solution Overview

Problem

Existing RF connectors are costly and difficult to disassemble for service and repair due to small-pitch configurations, leading to increased assembly costs and inefficiencies in electrical and RF signal connections.

Innovation Solution

The use of conductive and compliant (CC) plugs and pins that allow for radial compression to create reliable electrical connections, enabling a wide range of insertion depths and allowing for easy assembly, disassembly, and re-assembly with radial compliance, even in small-pitch arrays.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If small-pitch RF connector configurations are used to increase connector density, then the number of connectors per unit area increases, but the assembly cost increases and disassembly difficulty increases

Engineering Contradiction:
Improvenumber of connectors per unit areaVSAvoiddisassembly difficulty
Core Design Contradiction:
Quantity of substanceVSEase of repair

Solution Approach 1:

The connector assembly is divided into separable components (connector body, compliant element, contact element) that can be independently manipulated. This segmentation allows individual connectors to be accessed and serviced even in high-density arrays, resolving the contradiction between high connector density and ease of repair.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The compliant element introduces dynamic radial movement capability to the otherwise static rigid connector structure. This radial compliance allows the connector to adapt during assembly and disassembly, enabling easy removal and reassembly of connectors in small-pitch configurations without compromising connection reliability.

Inventive Principle:
Principle #15Dynamics

2Reliability

If rigid connectors are used for precise electrical connections, then connection reliability is maintained, but tolerance to misalignment is reduced and assembly complexity increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The material properties of the compliant element are changed to exhibit radial compliance while maintaining axial stability. This parameter change allows the connector to accommodate radial misalignments through elastic deformation, reducing assembly precision requirements and simplifying the assembly process while maintaining reliable electrical connections.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The connector assembly combines rigid components (connector body, contact element) with a compliant component (elastic body or elastomeric material). This composite structure provides both the mechanical stability needed for reliable connections and the radial flexibility needed for easy assembly and misalignment tolerance.

Inventive Principle:
Principle #40Composite materials

3Productivity

If serviceable RF connector assemblies are designed for easy disassembly, then repair efficiency improves, but connection stability may be compromised

Engineering Contradiction:
Improverepair efficiencyVSAvoidconnection stability
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The compliant element automatically performs the function of alignment adjustment and contact force optimization during assembly through its elastic deformation. This self-adjusting mechanism ensures stable connections are achieved automatically during the simple assembly process, maintaining connection stability while enabling easy serviceability.

Inventive Principle:
Principle #25Self-service

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

Facilitates easy and repeatable assembly and disassembly of RF connectors, maintaining reliable electrical connections while accommodating misalignments, reducing costs and improving serviceability.

Implementation Method 1

radial compression of the CC creates a reliable electrical connection

Methodology Applied
Scientific EffectRadial compression: Compression

Implementation Method 2

establish a radially compliant, axially free running electrical connection

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 3

radially compliant, axially free running electrical connection

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP3465831B1Radially compliant, axially free-running connector
Publication Date: 2025.08.20 RAYTHEON CO
  • EP3465831B1 patent drawingFigure 1
  • EP3465831B1 patent drawingFigure 2
  • EP3465831B1 patent drawingFigure 3

AI summary

A connectable assembly is provided and includes a body defining a recess, a male conductive element supportively disposed proximate to the body and a conductive compliant (CC) plug disposed within the recess for establishing a radially compliant, axially free running electrical connection with the male conductive element.