Impedance Matching Architecture for Transmission Lines
An impedance matching and transmission line technology, applied in the direction of electrical connection of printed components, printed circuit components, etc., can solve the problems of residual redundant parts, insufficient wire connection, high cost of high-frequency circuits, and achieve good impedance matching characteristics, easy to manufacture, The effect of tolerance reduction
Active Publication Date: 2019-10-18
ALPHA NETWORKS INC
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Problems solved by technology
However, when the redundant part ST is removed by using the technology of back drilling, over-drilling (such as Figure 1B shown) or insufficient drilling (such as Figure 1C shown) phenomenon
When the drilling is excessive, there will be insufficient connection of the wires and affect the high-frequency characteristic impedance; on the other hand, when the drilling is insufficient, it will cause local redundant parts to remain, which will also affect the high-frequency Characteristic impedance
Therefore, very precise control is required when performing back drilling, otherwise defective products will easily appear.
This will make the cost of high-frequency circuit production relatively high
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[0048] The foregoing and other technical content, features, and technical effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, for example: up, down, left, right, front or back, etc., only refer to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate but not to limit the present invention.
[0049] Please refer to figure 2 , Which is a schematic cross-sectional view of an impedance matching architecture of a transmission line according to an embodiment of the present invention. In this embodiment, the transmission line 100 includes conductive materials 200, 202, 204, 206, 208, 210, and 212, and ground wires corresponding to the aforementioned conductive materials 200, 202, 204, 206, 208, 210, and 212. From another perspective, the transmission line 100 can be div...
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The invention provides an impedance matching framework of a transmission line. The impedance matching framework comprises at least two redundant conductive sections and at least one grounding conductive section; the redundant conductive sections are coupled between the input end and the output end of the transmission line; the first end of each redundant conductive section is coupled to the transmission line while the second end is separated from the transmission line, and different redundant conductive sections are separated mutually; and each grounding conductive section is arranged around the corresponding redundant conductive section and separated from the corresponding redundant conductive section, wherein each redundant conductive section is correspondingly configured in one corresponding through hole. By adoption of the technology provided by the invention, the circuit with high impedance matching characteristic can be manufactured more easily.
Description
Technical field [0001] The present invention relates to the technical field of impedance matching, in particular to an impedance matching architecture of a transmission line. Background technique [0002] In the modern era where data transmission continues to increase in speed, in order to maintain the signal transmission quality during high-speed signal transmission, it is necessary to ensure the integration and matching of the overall characteristic impedance during circuit design. Especially, in the high-frequency circuit, the overall integration of the characteristic impedance (Characteristic Impedance) must be done well, so that the characteristic impedance value of the signal transmitted all the way from the original end to the target end is equal, so as to ensure the accuracy of high-frequency signal transmission Sex. [0003] In order to achieve a good characteristic impedance matching effect, including the width of the trace, the distance between different traces, and eve...
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IPC IPC(8): H05K1/11H05K1/02
Inventor郭荣发
OwnerALPHA NETWORKS INC