Compact Signal Isolator Layout for High-Frequency Impedance Matching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional signal isolators require a large housing space and fail to achieve satisfactory impedance matching at high frequencies, leading to significant loss of high-frequency signals.
Innovation Solution
The isolator design includes a body with integrated circuit modules and a connecting element, utilizing capacitors and iron cores for signal isolation, along with lightning protection components, all housed in a compact structure that allows for efficient signal processing and grounding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conventional signal isolator uses separate first and second circuit boards with a partition to achieve signal isolation, then the signal noise isolation effect is improved, but the housing space required increases
Solution Approach 1:
The patent combines the first and second circuit boards into a single integrated circuit board, eliminating the need for a partition structure. The signal isolation function is achieved through circuit design rather than physical separation, thereby reducing housing space while maintaining isolation effectiveness.
Solution Approach 2:
The patent segments the signal processing functions into distinct circuit modules on the same circuit board, allowing for effective signal isolation through circuit architecture rather than requiring physical partitioning of the housing space.
2Reliability
If the conventional signal isolator uses wire connections through partition holes to connect circuit boards, then the isolation structure is achieved, but the high-frequency signal loss increases due to poor impedance matching
Solution Approach 1:
By integrating both signal paths onto a single circuit board, the patent eliminates wire connections through partition holes, thereby improving impedance matching and reducing high-frequency signal loss while maintaining isolation functionality through circuit design.
3Reliability
If the conventional signal isolator uses multiple separate components (first circuit board, second circuit board, isolation unit with capacitors and inductors), then the signal isolation function is achieved, but the device complexity increases
Solution Approach 1:
The patent merges multiple separate components (first circuit board, second circuit board, and isolation unit) into a single integrated circuit board with unified circuit design, thereby reducing device complexity while maintaining the signal isolation function through integrated circuit architecture.
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 compact design achieves effective signal isolation and lightning protection, reducing volume and improving impedance matching for high-frequency signals, while maintaining good reception quality.
Implementation Method 1
The isolation unit 94 has a functional block for signal isolation, the functional block has a plurality of capacitors 941 and a plurality of inductors 942 which enable signal noise to be isolated
Implementation Method 2
The isolation unit 94 has a functional block for signal isolation, the functional block has a plurality of capacitors 941 and a plurality of inductors 942 which enable signal noise to be isolated
Implementation Method 3
a joint (53) deposited on the insulating bushing (103)... an insulating ring (24) deposited between the first shell (22) and the joint (53)
Data Source
AI summary
Some embodiments of the disclosure provide an isolator which includes a body, a first circuit module, and a second circuit module. In some examples, the first circuit module is arranged at a first connecting port of the body and includes a first integrated circuit board, a first shell surrounding the first integrated circuit board, a first signal processing circuit penetrating through the first integrated circuit board, and a joint sleeved on an insulating bushing. The joint partially surrounds the first signal processing circuit. A first end portion of the first signal processing circuit is electrically connected to a first contact element. The second circuit module is arranged at a second connecting port of the body and includes a second integrated circuit board, a second shell surrounding the second integrated circuit board, and a second signal processing circuit extending along a length direction of the second integrated circuit board.