EP0836247A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Impedance matched cable assembly
Assignee: Molex LLC
•
Filing: 1997-10-02
•
Granted: —
•
Expires: 2017-10-02
Abstract
Abstract A terminating connector (22) for a data transmission cable (20), wherein the cable (20) is of a known characteristic impedance and is of the type having a signal carrying conductor (26) and a shield (24). The connector (22) is typically arranged to mate with a complementary connector of a backplane. An overmolded subassembly (46) of the connector (22) includes a first terminal (32) electrically coupled at one end thereof to the shield (24), and a second terminal (34) electrically coupled at one end thereof to the signal carrying conductor (26). A dielectric insert (44) is disposed between the first and second terminals (32, 34). The insert (44) is dimensioned and has a dielectric constant such that the characteristic impedance of the subassembly (46) substantially matches the characteristic impedance of the cable (20). The subassembly (46) may be secured to a surrounding housing (28).
Inventors
- 👤 Michael J. Miskin
- 👤 Paul Murphy
- 👤 Ed Seamands
- 👤 Munawar Ahmad
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 19:06
CPC Classifications
H; H01; H01R; H01R24/00; H01R24/38; H01R24/40; H01R24/42; H01R24/44; H01R13/00; H01R13/648; H01R13/658; H01R13/6591; H01R13/65912; H01R2103/00; Y; Y10; Y10S; Y10S439/00; Y10S439/933; Y10S439/936
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
199 words
An electrical terminating connector (22)
for a data transmission cable (20), the cable (20) of a
known characteristic impedance and of the type having a
signal carrying conductor (26) and a shield (24), the
connector (22) comprising, a subassembly (46) including a
first terminal (32) arranged for electrically coupling at
one end thereof to the shield (24) and having a first
contact (36) at an opposite end thereof, a second
terminal (34) arranged for electrically coupling at one
end thereof to the signal carrying conductor (26) and
having a second contact (38) at an opposite end thereof,
and a dielectric insert (44) disposed between the first
and second terminals (32, 34), the dielectric insert (44)
being dimensioned and having a selected dielectric
constant to provide a characteristic impedance of the
subassembly (46) that substantially matches the
characteristic impedance of the cable (20), a housing
(28), the housing (28) having an interior region (52)
dimensioned to receive the subassembly (46) from one end
of the housing (28) such that the first and second
contacts (36, 38) are electrically accessible from an
opposite end (30) of the housing (28), and means (64) for
securing the subassembly (46) to the housing (28).
Claim 2
Dependent Claim
19 words
The connector of claim 1 wherein at least
part of the subassembly (46) is overmolded into a unitary
structure.
Claim 3
Dependent Claim
13 words
The connector of claim 1 wherein the
dielectric insert (44) comprises RT Duroid.
Claim 4
Dependent Claim
13 words
The connector of claim 1 wherein the
dielectric insert (44) comprises ceramic material.
Claim 5
Dependent Claim
20 words
The connector of claim 1 wherein the means
(64) for securing the subassembly (46) to the housing
(28) includes epoxy.
Claim 6
Dependent Claim
38 words
The connector of claim 5 wherein at least
one portion (58) of the subassembly (46) is dimensioned
to fit in the interior region (52) of the housing (28)
such that said portion (58) impedes the flow of epoxy.
Claim 7
Dependent Claim
19 words
The connector of claim 1 wherein the housing
(28) includes means (60) for limiting depth of
subassembly (46) insertion.
Claim 8
Dependent Claim
49 words
The connector of claim 1 wherein the cable
has a plurality of signal carrying conductors (126, 226),
and further comprising a third terminal (234) arranged
for electrically coupling at one end thereof to a second
signal carrying conductor (226) and having a third
contact at an opposite end thereof.
Claim 9
Independent Claim
193 words
An apparatus for transmitting electronic
data therethrough, comprising: a transmission cable (20) of a known characteristic
impedance, the cable (20) including a signal carrying
conductor (26) and a shield (24); and an electrical terminating connector (22), the
connector (22) comprising, a subassembly (46) including a first terminal
(32) electrically coupled at one end to the shield
(24) and having a first contact (36) at an opposite
end thereof, a second terminal (34) electrically
coupled at one end to the signal carrying conductor
(26) and having a second contact (38) at an opposite
end thereof, and a dielectric insert (44) disposed
between the first and second terminals (32, 34), the
dielectric insert (44) being dimensioned and having
a selected dielectric constant to provide a
characteristic impedance of the subassembly (46)
that substantially matches the characteristic
impedance of the cable (20); a housing (28), the housing (28) having an
interior region (52) dimensioned to receive the
subassembly (46) from one end of the housing (28)
such that the first and second contacts (36, 38) are
electrically accessible from an opposite end of the
housing (28); and means (64) for securing the housing to the
subassembly.
Claim 10
Dependent Claim
19 words
The apparatus of claim 9 wherein at least
part of the subassembly (46) is overmolded into a unitary
structure.
Claim 11
Dependent Claim
13 words
The apparatus of claim 9 wherein the
dielectric insert (44) comprises RT Duroid.
Claim 12
Dependent Claim
13 words
The apparatus of claim 9 wherein the
dielectric insert (44) comprises ceramic material.
Claim 13
Dependent Claim
20 words
The apparatus of claim 9 wherein the means
(64) for securing the subassembly (46) to the housing
(48) includes epoxy.
Claim 14
Dependent Claim
38 words
The connector of claim 13 wherein at least
one portion (58) of the subassembly (46) is dimensioned
to fit in the interior region (52) of the housing (28)
such that said portion (58) impedes the flow of epoxy.
Claim 15
Dependent Claim
44 words
The connector of claim 13 wherein the epoxy
surrounds a region wherein the first terminal (32) is
electrically coupled at one end to the shield (24) and
wherein the second terminal (34) is electrically coupled
at one end to the signal carrying conductor (26).
Claim 16
Dependent Claim
19 words
The connector of claim 1 wherein the
housing (28) includes means (60) for limiting depth of
subassembly (46) insertion.
Claim 17
Dependent Claim
49 words
The apparatus of claim 9 wherein the cable
has a plurality of signal carrying conductors (126, 226),
and further comprising a third terminal (234) arranged
for electrically coupling at one end thereof to a second
signal carrying conductor (226) and having a third
contact at an opposite end thereof.
Claim 18
Independent Claim
169 words
A method of constructing an apparatus for
transmitting electronic data therethrough, comprising the
steps of, providing a transmission cable (20) of a known
characteristic impedance, the cable (20) including a
signal carrying conductor (26) and a shield (24),
electrically coupling a first terminal (32) at one end
thereof to the shield (24), electrically coupling a
second terminal (34) at one end thereof to the signal
carrying conductor (26), inserting a dielectric material
(44) between the first and second terminals (32, 34), the
dielectric material (44) being dimensioned and having a
selected dielectric constant to provide a characteristic
impedance of the apparatus subassembly (46) that
substantially matches the characteristic impedance of the
cable (20), overmolding at least part of the dielectric
insert, (44), the end of the first terminal (32) coupled
to the shield (24), and the end of the second terminal
(34) coupled to the signal carrying conductor (26) into a
subassembly, (46), and inserting the subassembly (46)
into a housing (28), and securing the subassembly to the
housing.
Claim 19
Dependent Claim
27 words
The method of claim 18 wherein the step of
securing the subassembly (46) to the housing (28)
includes the step of delivering an amount of epoxy (64).
Claim 20
Dependent Claim
40 words
The method of claim 18 wherein the cable
has a plurality of signal carrying conductors (126, 226),
and further comprising the step of electrically coupling
a third terminal (234) at one end thereof to a second
signal carrying conductor (226).
Claim 21
Dependent Claim
35 words
The method of claim 18 further comprising
the step of stripping the cable (20) such that the signal
carrying conductor (26) and shield (24) are exposed for
electrically coupling to the respective terminals (32,
34).
Claim 22
Dependent Claim
20 words
The method of claim 18 further comprising
the steps of stamping and forming the first and second
terminals (32, 34).
References Cited (Backward Citations)
No citation records indexed.
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