Integrated DC Blocking RF Connector for Coaxial Cables
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Solution Overview
Problem
Conventional RF jumper cables require additional bulky DC blocks that complicate installation and expose systems to weather vulnerabilities, introducing potential failure points and complicating water and ice protection.
Innovation Solution
Integration of a capacitor segment with a dielectric insulator between inner and outer pins within the RF jumper cable, shielded by a conductive outer body segment, which inhibits DC power flow while allowing RF signals to pass through, reducing the overall size and complexity of the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate DC block is attached between the cable connector and interface port, then DC power blocking is achieved, but device complexity and installation difficulty increase
Solution Approach 1:
The patent combines the DC blocking capacitor and the RF connector into a single integrated component. The capacitor is positioned within the connector body, eliminating the need for a separate DC block attachment. This merging of functions reduces the number of components from two (connector + separate DC block) to one (integrated connector-capacitor assembly), directly resolving the technical contradiction between achieving DC power blocking and reducing device complexity.
2Reliability
If a separate DC block is used, then DC power blocking is achieved, but installation becomes more complicated
Solution Approach 1:
By integrating the capacitor directly into the connector assembly, the installation process is simplified from requiring separate attachment of a DC block to simply connecting the integrated connector. The capacitor is pre-positioned within the connector body, eliminating additional installation steps and making the installation process as simple as connecting the cable itself, thus resolving the contradiction between achieving DC power blocking and ease of installation.
3Reliability
If an external DC block is attached, then DC power blocking is achieved, but weather protection becomes more difficult
Solution Approach 1:
The integration of the capacitor within the connector body creates a unified structure with a single external surface for weather protection. This eliminates the multiple interfaces and gaps that would exist between a separate DC block and connector, providing continuous weather sealing. The single integrated structure allows for more effective gasket placement and sealing, directly resolving the contradiction between achieving DC power blocking and protecting against water and ice infiltration.
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 provides a compact, effective DC blocking mechanism that simplifies installation, enhances weather protection, and reduces the risk of failure by integrating the DC blocking function directly into the RF jumper cable, ensuring reliable operation in harsh conditions.
Implementation Method 1
The capacitor segment comprises an inner and outer pin having a dielectric insulator therebetween and is configured to electrically connect an inner conductor of the coaxial cable to the interface port thereby facilitating the passage of RF energy from the inner conductor of the coaxial cable to the interface port while inhibiting the passage of electric current through the capacitor segment to the interface port.
Implementation Method 2
The capacitor segment comprises an inner and outer pin having a dielectric insulator therebetween
Implementation Method 3
an outer conductor segment extending over and electrically shielding the capacitor segment
Data Source
AI summary
A connector for coupling a coaxial cable to an interface port comprising a capacitor segment configured to interpose a center conductor of a coaxial cable and an RF interface and an outer conductor segment extending over and electrically shielding the capacitor segment. The capacitor segment comprises an inner and outer pin having a dielectric insulator therebetween and is configured to electrically connect an inner conductor of the coaxial cable to the RF interface port. The capacitor segment facilitates the passage of RF energy from the inner conductor of the coaxial cable to the RF interface while inhibiting the passage of electric current through the capacitor segment to the RF interface.