RF Connector Layout for Multi-Band Signals on a Single PCB Plane
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Solution Overview
Problem
Conventional RF connectors are large in size and limited in frequency band processing range, leading to increased part size and unit price when handling multiple frequency bands.
Innovation Solution
An RF connector design utilizing multiple signal transmission pins on the same plane, with bridge assemblies, push bars, and metal shielding plates to maintain contact and reduce interference, allowing signal transmission across various frequency bands while minimizing size and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional multi-connectors are used to process signals in various frequency bands, then the frequency band processing capability is improved, but the size of the part increases
Solution Approach 1:
The connector is divided into multiple independent signal transmission paths, each handling specific frequency bands. Multiple connectors are arranged in parallel on the same PCB plane, allowing each connector to be optimized for specific frequency ranges while maintaining a compact overall structure.
Solution Approach 2:
The patent transitions from vertical stacking of connectors (conventional approach) to horizontal arrangement on the same PCB plane. This dimensional change allows multiple frequency band connectors to coexist without increasing height, reducing overall part size while maintaining multi-frequency capability.
2Adaptability or versatility
If conventional multi-connectors are used to handle multiple frequency bands, then the frequency band coverage is improved, but the height difference between PCBs increases
Solution Approach 1:
The patent arranges multiple connectors horizontally on the same PCB plane rather than stacking them vertically. This eliminates height differences between PCBs connected by the multi-connector assembly, as all signal transmission paths operate at the same vertical level.
3Adaptability or versatility
If conventional multi-connectors are used to deliver signals in multiple frequency bands, then the frequency band range is improved, but the unit price of the part increases
Solution Approach 1:
The patent designs a universal connector structure that can handle multiple frequency bands through parallel signal paths. By using a standardized multi-connector architecture with shared housing and mounting mechanisms, the design reduces per-unit cost compared to using multiple separate specialized connectors.
Solution Approach 2:
Multiple connectors are merged into a single integrated multi-connector assembly with common structural elements such as housing, mounting brackets, and PCB interface. This consolidation reduces total part count, simplifies assembly, and lowers unit price while maintaining the ability to process multiple frequency bands.
4Volume of moving object
If the size of conventional multi-connectors is reduced, then the part size is improved, but the contact stability between signal transmission pins and connection terminals deteriorates
Solution Approach 1:
The patent incorporates push bars that apply dynamic contact force to the signal transmission pins, ensuring stable electrical contact despite the compact size. The push bar mechanism compensates for manufacturing tolerances and assembly variations, maintaining reliable contact in the reduced-size connector structure.
Data Source
AI summary
An RF connector includes: a first printed circuit board with mounted devices; a first bridge assembly mounted adjacent to one side of the first board and including signal transmission pins; a second printed circuit board spaced apart from the first board; connection terminals adjacent to the second board contacting surfaces of the signal pins; a push bar applying force to maintain contact between the pins and terminals; and a metal shielding plate fixed to the push bar and second board, shielding portions of both. Shielding walls may be disposed between adjacent signal pins, improving isolation. The push bar has a wedge shape, creating a bending unit in the transmission pins according to lever principles. The connector transmits RF signals, power, and digital signals on the same plane, reducing size and cost while effectively processing signals in various frequency bands without expensive multi-connectors.