Paul A Kiedrowski, Age 645409 Mt Mckinley Rd, Fort Worth, TX 76137

Paul Kiedrowski Phones & Addresses

5409 Mt Mckinley Rd, Fort Worth, TX 76137 (817) 498-7285

Bartlett, IL

Sycamore, IL

Roselle, IL

Hoffman Estates, IL

5409 Mt Mckinley Rd, Fort Worth, TX 76137 (817) 919-6796

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Position: Service Occupations

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Us Patents

Broadband Temperature Compensated Microwave Cavity Oscillator

US Patent:
4766398, Aug 23, 1988
Filed:
Apr 30, 1987
Appl. No.:
7/044186
Inventors:
Paul A. Kiedrowski - Hanover Park IL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H03B 714
H03L 104
US Classification:
331 96
Abstract:
This microwave oscillator in one embodiment has two tuning rods (16 and 18) configured to extend within a resonant cavity (12). One of these tuning rods (18) attaches to a shaft (19) that is affixed at one end and that is comprised of a material having a thermal coefficient of expansion that is different from the material comprising the housing (11) that forms the cavity (12). As a result, movement of the tuning rods (16 and 18) will vary as temperature varies, with a resulting stability in the frequency of oscillation.

Cableless Switching Element For Waveguide Having Low Loss And Fast Switching Speed

US Patent:
4780692, Oct 25, 1988
Filed:
May 4, 1987
Appl. No.:
7/045338
Inventors:
Paul A. Kiedrowski - Hanover Park IL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H01P 112
US Classification:
333108
Abstract:
An improved switching arrangement 10 for waveguide is disclosed which comprises, in combination, a coaxial switch 12 and a unified, multi-port, waveguide interface 14. The coaxial switch 12 has coaxial connectors of a first type (12a, 12b, 12c) mounted in a parallel pattern with a preestablished center-to-center spacing. The waveguide interface 14 includes flanges (14a, 14b, 14c), and is preferably formed as a waveguide housing having a transition plate portion and a cover plate portion. Each port of the unified waveguide interface includes internal waveguide-to-coax transitions for coupling to a respective external connector of a second type. The external coaxial connectors (16a, 16b, 16c) are configured in a parallel pattern with center-to-center spacings equal to the preestablished center-to-center spacings of the coaxial switch connectors (12a, 12b, 12c) such that these connectors mate directly with those of the unified waveguide interface. By so doing, intervening coaxial cables or adaptors are eliminated and relatively low insertion loss and fast switching speed are exhibited over a relatively broad bandwidth.

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