Coaxial Cable Connector Grounding Spring for RF Ingress
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Solution Overview
Problem
Current coaxial cable connectors, such as F connectors, often result in poor signal transfer due to loose connections and unstable ground paths, leading to ingress of unwanted RF signals and intermittent failures, especially in self-install kits, which can cause costly and time-consuming diagnostic issues.
Innovation Solution
A coaxial cable connector design featuring a grounding member, such as a resilient spring or circlip, is integrated between the coupler and post, establishing a stable electrical grounding path even when the connector is not tightly fastened, ensuring continuous contact and preventing RF ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the coupler is not tightly fastened to the terminal, then the ease of installation is improved, but the reliability of the electrical grounding path deteriorates
Solution Approach 1:
The grounding member is designed as a resilient spring that dynamically adapts its contact pressure. It automatically adjusts to maintain reliable electrical contact between the coupler and post regardless of whether the coupler is tightly fastened or loosely mounted, thus resolving the contradiction between ease of installation and grounding reliability
Solution Approach 2:
The resilient spring grounding member changes its physical state (compression/extension) to maintain optimal contact pressure. This parameter change allows the grounding path to remain reliable across different installation tightness levels, addressing both ease of installation and grounding reliability
2Adaptability or versatility
If the connector interfaces are allowed to pull apart, then the adaptability is improved, but the harmful RF signal ingress increases
Solution Approach 1:
The resilient spring grounding member acts as an intermediary element that maintains continuous electrical contact between the coupler and post even when the connector interfaces pull apart. This intermediary ensures the grounding path remains intact, preventing RF signal ingress while allowing interface adaptability
Solution Approach 2:
The resilient spring provides beforehand cushioning by maintaining pre-loaded contact pressure between the coupler and post. This pre-cushioning ensures that even when interfaces separate, the grounding path remains protected against RF ingress, allowing adaptability without harmful effects
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
The solution provides a stable and reliable electrical grounding path, reducing RF signal ingress and maintaining signal quality, thereby improving data and video performance by ensuring a consistent connection even under vibrations or movement.
Implementation Method 1
A resilient spring grounding member disposed between the post and the coupler and establishing an electrical grounding path between the post and the coupler
Implementation Method 2
establishing a stable electrical grounding path even when the connector is not tightly fastened, ensuring continuous contact and preventing RF ingress
Data Source
AI summary
A coaxial connector for coupling an end of a coaxial cable to an equipment appliance port or terminal is disclosed. The coaxial cable has an inner conductor, a dielectric surrounding the inner conductor, an outer conductor surrounding the dielectric, and a jacket surrounding the outer conductor is disclosed. The coaxial cable connector comprises a body, a coupler rotatably attached to the body, and a post secured to the body. The post has a structural feature. A grounding member is disposed between the post and the coupler in the structural feature. The grounding member establishes an electrical grounding path which may be maintained between coupler and post, including, when the coupler is not tightly fastened to a terminal and without restricting rotation of coupler relative to post.