Paul T Watson

US Patent:

51336804, Jul 28, 1992

Filed:

Sep 18, 1990

Appl. No.:

7/584314

Inventors:

Paul B. Watson - Santa Rosa CA
Julius K. Botka - Santa Rosa CA

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

H01R 1300

US Classification:

439824

Abstract:

A female contact having a shell that encloses a collet that has an opening in a first end of the collet and that has a second end that is configured so that, when a male pin is inserted through the first end of the collet, it pushes on the second end of the collet either directly or indirectly through some mechanism such as a spring. This female contact has a small diameter that makes it particularly suitable for certain applications and in some embodiments extends outward from the shell to facilitate inserting a male pin into the collet.

US Patent:

49671731, Oct 30, 1990

Filed:

Aug 21, 1989

Appl. No.:

7/396506

Inventors:

Paul B. Watson - Santa Rosa CA

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

H01P 104

US Classification:

333260

Abstract:

A precision transmission line in the form of a short airline, and calibration of a network analyzer using the short airline, are disclosed. The short airline is approximately one-quarter wavelength at the middle frequency of the measurement frequency range. One embodiment comprises a very short coaxial airline. The inner conductor is connected by an adapter to a mating inner conductor, such as the inner conductor of the network analyzer test port. For reliable interface at the other end of the inner conductor, a precision coaxial connector is preferably provided for connection to a device under test. The outer conductor is then attached coaxially to the inner conductor between the network analyzer test port and the device under test. The electrically short airline provides a very precise element for use in the TRL (Thru-Reflect-Line), as well as other, calibrations of network analyzers.