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Adiabatic coaxial cable coupling

A coaxial cable and thermal insulation technology, applied in the field of thermal insulation coaxial cable connectors, can solve the problems of reducing thermal conductivity, RF and mechanical performance damage to coaxial microcalorimeters, measurement uncertainty is not as good as the rectangular waveguide standard, etc.

Pending Publication Date: 2021-05-04
KEYSIGHT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fragility of the center conductor in a coaxial waveguide makes it an extremely difficult part to assemble
Additionally, there is a break in the outer conductor that is required to reduce thermal conductivity
In many NMIs, RF and mechanical performance are compromised and limit the use of coaxial microcalorimeters to <= 18GHz (Type N)
Some labs stick with coax up to 50GHz, however their measurement uncertainty is not as good as the rectangular waveguide standard

Method used

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  • Adiabatic coaxial cable coupling
  • Adiabatic coaxial cable coupling
  • Adiabatic coaxial cable coupling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0053] 1. An insulated coaxial cable connector, comprising:

[0054] frame;

[0055] a planar transmission line within the frame and having a first end and a second end;

[0056] a first coaxial-to-planar transition within the chassis and connected to the first end of the planar transmission line; and

[0057] A second coaxial-to-planar transition is within the chassis and connected to the second end of the planar transmission line.

[0058] 2. The thermally insulated coaxial cable connector of item 1, wherein the first coaxial-to-plane transition and the second coaxial-to-planar transition include respective connectors exposed on The housings are at opposite ends and are each configured to operatively engage a coaxial cable fitting.

[0059]3. The insulated coaxial cable connector of item 1, wherein the housing has a thermal conductivity of less than 0.300 watts per meter Kelvin.

[0060] 4. The insulated coaxial cable connector of item 1, wherein the housing is formed of...

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Abstract

An adiabatic coaxial cable (12a) connector includes a chassis (60a), and a planar transmission line (16) within the chassis and having first and second ends. The coaxial cable (12a) connector further includes a first coaxial-to-planar transition within the chassis (60a) and connected to the first end of the planar transmission line (16), and a second coaxial-to-planar transition within the chassis (60a) and connected to the second end of the planar transmission line (16).

Description

Background technique [0001] There are many examples in test and measurement where a system under test or a device under test (DUT) is subjected to a range of environmental conditions. Typically, the test equipment used to measure performance is not subject to the same conditions, and it is often desirable to isolate the DUT's test environment from the associated test equipment. By doing this, the test equipment can be assumed to be independent of the test environment. Conversely, devices subjected to environmental stress can be disassociated from stray heat paths through connections to external test equipment. Such stray heat paths may affect the device under test in different ways than the conditions the test chamber is intended to simulate. Ideally, the device under test is isolated from external influences, but this is difficult to achieve if there is also a need to have connections to external test equipment. [0002] In radio frequency (RF) power metering applications,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P3/00H01P3/08H01P3/06G01K17/00
CPCH01P3/006H01P3/081H01P3/06G01K17/00H01P5/085G01K17/006H01R13/533H01R24/52H01R13/6683H01R2103/00H01P3/08H01P3/026
Inventor E·布拉肯里奇C·H·韩F·L·迟
Owner KEYSIGHT TECH