Differential signal probe with integral balun
First Claim
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1. A probe for connecting one of a sink of a differential signal to a source of a single ended signal and a source of a differential signal to a sink of a single ended signal, said sink of said differential signal comprising a sink of a first differential signal component and a sink of a second differential signal component and said source of said differential signal comprising a source of said first differential signal component and a source of said second differential signal component, said probe comprising:
- (a) an elongate coaxial cable comprising;
(i) a tubular outer conductor having an outer surface, an inner surface, a first end and a second end; and
(ii) an inner conductor arranged within said inner surface of said outer conductor and having a first end proximate said first end of said outer conductor and a second end, said second end of said inner conductor and said second end of said outer conductor operatively connected to one of said source and said sink of said single ended signal and said first end of said outer conductor operatively connected to the respective one of said sink and source of said first differential signal component and said first end of said inner conductor operatively connected to the respective one of said sink and said source of said second differential signal component; and
(b) a magnetically permeable sleeve having an inner surface substantially encircling a length of said coaxial cable and an outer surface.
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Abstract
A probe with integral balun enables connecting a device utilizing differential signals to a source or a sink of single ended signals.
1137 Citations
22 Claims
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1. A probe for connecting one of a sink of a differential signal to a source of a single ended signal and a source of a differential signal to a sink of a single ended signal, said sink of said differential signal comprising a sink of a first differential signal component and a sink of a second differential signal component and said source of said differential signal comprising a source of said first differential signal component and a source of said second differential signal component, said probe comprising:
- (a) an elongate coaxial cable comprising;
(i) a tubular outer conductor having an outer surface, an inner surface, a first end and a second end; and
(ii) an inner conductor arranged within said inner surface of said outer conductor and having a first end proximate said first end of said outer conductor and a second end, said second end of said inner conductor and said second end of said outer conductor operatively connected to one of said source and said sink of said single ended signal and said first end of said outer conductor operatively connected to the respective one of said sink and source of said first differential signal component and said first end of said inner conductor operatively connected to the respective one of said sink and said source of said second differential signal component; and
(b) a magnetically permeable sleeve having an inner surface substantially encircling a length of said coaxial cable and an outer surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- (a) an elongate coaxial cable comprising;
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12. A probe comprising:
- (a) a support block securable to a movable probe supporting member;
(b) an elongate coaxial cable secured to said support block, said coaxial cable comprising;
(i) an elongate tubular outer conductor having an outer surface, an inner surface, a first end and a second end;
(ii) an inner conductor arranged within said inner surface of said outer conductor and having a first end proximate said first end of said outer conductor, a second end proximate said second end of said outer conductor, said first end of said inner conductor and said first end of said outer conductor operatively connected to one of a source and a sink of a single ended signal;
(c) a magnetically permeable sleeve having an inner surface substantially encircling a length said coaxial cable; and
(d) a probe head secured to said elongate coaxial cable proximate said second end of said outer conductor and comprising a first probe tip conductively connected to said second end of said outer conductor and a second probe tip conductively connected to said second end of said inner conductor, said probe converting a single ended signal communicated to said first end of said inner and outer conductors to a first differential signal component at said first probe tip and a second differential signal component at said second probe tip and converting a first differential signal component communicated to said first probe tip and a second differential signal component communicated to said second probe tip to a Single ended signal at said first ends of said inner and outer conductors. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
- (a) a support block securable to a movable probe supporting member;
Specification