Patent Grant
8827750
The present invention relates to a transmission conductor structure, and more particularly to an application structure for an electric wave effect of a transmission conductor, carrying out effectively the suppression of common mode signals, and the guiding-to-scatter suppression of radio wave interference (RFI), electromagnetic wave interference (EMI), crosstalk and electrostatic discharge (ESD).
Currently, connectors are very popular. Among these, USB connectors are improved, developed continuously, and the transmission speed thereof increases as well.
However, crosstalk may influence the high frequency transmission of differential signals. Especially, a time differential signal pair and a differential signal pair, or a differential signal pair and a signal pair will subject to crosstalk, causing the instability of the signal transmission upon the high frequency transmission of a connector. Therefore, ground terminals are used for a portion of terminals of an electronic connector to block crosstalk generated among signal terminals and prevent the influence to the transmission speed and high frequency signals of the electronic connector itself. However, the suppression of electromagnetic wave interference is carried out on conventional connectors all by means of traditional shielding.
To improve the defects mentioned above, an application structure for an electric wave effect of a transmission conductor with which the suppression of common mode signals, and the guiding-to-scatter suppression of radio wave interference (RFI), electromagnetic wave interference (EMI), crosstalk and electrostatic discharge (ESD) are carried out as proposed.
The main object of the present invention is to provide an application structure for an electric wave effect of a transmission conductor, achieving the effective suppression of common mode signals, and guiding-to-scatter suppression of radio wave interference (RFI), electromagnetic wave interference (EMI), crosstalk and electrostatic discharge (ESD) through the collocation and combination of a first ground transmission conductor and second ground transmission conductor with each high frequency terminal and low frequency terminal, and the coupling thereof to each other.
To achieve the object mentioned above, the present invention proposes an application structure for an electric wave effect of a transmission conductor, capable of solving the problem caused by high frequency crosstalk through the following structure; the structure includes at least one transmission conductor, which includes a first transmission conductor set, where the first transmission conductor set includes a first differential signal transmission set, first signal transmission set and second differential signal transmission conductor set arranged parallel to one another, where common mode signal interference generated from the first differential signal transmission conductor set and second differential signal transmission conductor set is suppressed through a first ground transmission conductor and first power source transmission conductor, and the first transmission conductor is in electric connection with a second transmission conductor set, which includes a third differential signal transmission conductor set, second signal transmission conductor set and fourth differential signal transmission conductor set, where common mode signal interference generated from the third differential signal transmission conductor set and fourth differential signal transmission conductor set is suppressed through a second ground transmission conductor and second power source transmission conductor.
Furthermore, the transmission conductor defines at least one contact portion, bended portion and welded portion with a respective angle ranging from 120 to 150 degrees.
Whereby, the collocated actuation among the first ground transmission conductor, second ground transmission conductor, first power source transmission conductor and second power source transmission conductor allows the best suppression of common mode signals, and guiding-to-scatter suppression of radio wave interference (RFI), electromagnetic wave interference (EMI), crosstalk and electrostatic discharge (ESD).
Referring to
Referring to
The first transmission conductor set 15 includes a first differential signal transmission conductor set 151, first signal transmission conductor set 152 and second differential signal transmission conductor set 153 arranged parallel to one another, and the common mode signal interference or crosstalk generated from the first differential signal transmission conductor set 151 and second differential signal transmission conductor set 153 is suppressed or isolated through a first ground transmission conductor 154 and first power source transmission conductor 155.
The second transmission conductor set 16 is electrically connected to the first transmission conductor set 15, and includes a third differential signal transmission conductor set 161, second signal transmission conductor set 162 and fourth differential signal transmission conductor set 163 arranged parallel to one another, and the common mode signal interference or crosstalk generated from the third differential signal transmission conductor set 161 and fourth differential signal transmission conductor set 163 is suppressed or isolated through a second ground transmission conductor 164 and second power source transmission conductor 165.
With respect to the isolation, referring to
Furthermore, the first differential signal transmission conductor set 151, first signal transmission conductor set 152, second differential signal transmission conductor set 153, first ground transmission conductor 154, third differential signal transmission conductor set 161, second signal transmission conductor set 162, fourth differential signal transmission conductor set 163, first power source transmission conductor 155, second power transmission conductor 165 and second ground transmission conductor 164 respectively define a first differential signal base 1512, first signal base 1522, second differential signal base 1532, first ground base 1542, third differential signal base 1612, second signal base 1622, fourth differential signal base 1632, first power source base 1552, second power source base 1652 and second ground base 1642. In addition, the first differential signal base 1512 and second signal base 1622 carry out the isolation (common mode signal interference suppression or crosstalk isolation) through the first ground base 1542 and second ground base 1642, and the second differential signal base 1532 and second signal base 1622 carry out the isolation (common mode signal interference suppression or crosstalk isolation) through the first ground base 1542 and second ground base 1642.
Furthermore, the first differential signal transmission conductor set 151, first signal transmission conductor set 152, second differential signal transmission conductor set 153, first ground transmission conductor 154, third differential signal transmission conductor set 161, second signal transmission conductor set 162, fourth differential signal transmission conductor set 163, first power source transmission conductor 155, third power source transmission conductor 165 and second ground transmission conductor 164 respectively define a first differential signal welded portion 1513, first signal welded portion 1523, second differential signal welded portion 1533, first ground welded portion 1543, third differential signal welded portion 1613, second signal welded portion 1623, fourth differential signal welded portion 1633, first power source welded portion 1553, second power source welded portion 1653 and second ground welded portion 1643. In addition, the first differential signal welded portion 1513 and second signal welded portion 1623 carry out the isolation (common mode signal interference suppression or crosstalk isolation) through the first ground welded portion 1543 and second ground welded portion 1643, and the second differential signal welded portion 1533 and second signal welded portion 1623 carry out the isolation (common mode signal interference suppression or crosstalk isolation) through the first ground welded portion 1543 and second ground welded portion 1643.
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| Number | Date | Country | |
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