Next high frequency improvement using hybrid substrates of two materials with different dielectric constant frequency slopes
First Claim
Patent Images
1. A printed circuit board for providing crosstalk compensation in an electrical connector comprising:
- a plurality of contacts for electrical connection with a mating connector, said plurality of contacts being mounted to said printed circuit board;
a first stage of compensation including a first capacitor having a first dielectric with a first dielectric constant that has a first rate of change with frequency;
a first conductive path electrically connecting said first capacitor to a portion of a first contact of said plurality of contacts, which portion is intended to make electrical contact with the mating connector;
a second stage of compensation including a second capacitor having a second dielectric with a second dielectric constant that has a second rate of change with frequency different than said first dielectric by at least about 0.15 across a decade of frequency; and
a second conductive path electrically connecting said second capacitor to said portion of said first contact of said plurality of contacts.
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Abstract
A connector is provided for simultaneously improving both the NEXT high frequency performance when low crosstalk plugs are used and the NEXT low frequency performance when high crosstalk plugs are used. The connector includes PCB substrates made of materials having different dielectric frequency characteristics.
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Citations
52 Claims
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1. A printed circuit board for providing crosstalk compensation in an electrical connector comprising:
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a plurality of contacts for electrical connection with a mating connector, said plurality of contacts being mounted to said printed circuit board; a first stage of compensation including a first capacitor having a first dielectric with a first dielectric constant that has a first rate of change with frequency; a first conductive path electrically connecting said first capacitor to a portion of a first contact of said plurality of contacts, which portion is intended to make electrical contact with the mating connector; a second stage of compensation including a second capacitor having a second dielectric with a second dielectric constant that has a second rate of change with frequency different than said first dielectric by at least about 0.15 across a decade of frequency; and a second conductive path electrically connecting said second capacitor to said portion of said first contact of said plurality of contacts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 50)
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35. A printed circuit board for providing crosstalk compensation in an electrical connector, the printed circuit board comprising:
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a plurality of conductors; a first capacitor electrically connected to a first of the conductors and providing crosstalk compensation to a signal communicated on the first of the conductors, the first capacitor having a first dielectric with a first dielectric constant slope; and a second capacitor electrically connected to the first of the conductors and providing crosstalk compensation to the signal communicated on the first of the conductors, the second capacitor having a second dielectric with a second dielectric constant slope, different than the first dielectric constant slope. - View Dependent Claims (36, 37, 38, 51)
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39. A printed circuit board comprising:
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a plurality of conductive paths that extend from a plurality of respective inputs of said printed circuit board to a plurality of respective outputs of said printed circuit board; a first compensation stage for capacitively coupling crosstalk compensation having a first polarity onto a first path of said plurality of conductive paths, said first compensation stage including at least one first capacitive element that includes a first dielectric constant material that has a first rate of change with frequency; and a second compensation stage for capacitively coupling crosstalk compensation having a polarity opposite the first polarity onto said first path of said plurality of conductive paths, said second compensation stage including at least one second capacitive element that includes a second dielectric constant material that has a second rate of change with frequency, different than the first rate of change with frequency. - View Dependent Claims (40, 41, 42, 43)
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44. A printed circuit board comprising:
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a plurality of conductors; a first compensation structure that is configured to provide a first compensating crosstalk having a first magnitude to a first of the plurality of conductors; and a second compensation structure that is configured to provide a second compensating crosstalk having a second magnitude to the first of the plurality of conductors; wherein a ratio of the first magnitude to the second magnitude varies with frequency. - View Dependent Claims (45, 46, 47, 48, 49, 52)
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Specification