Search

Evert C Nygren

from Ojai, CA
Age ~87
Get Report
Also known as:
Evert Joan Nygren, Ebert Nygren, Claus Nygren Evert
Phone and address:
401 Golden West Ave, Ojai, CA 93023
(775) 240-5626
Related to:
Justin LeeCheryl Walker, 52Travis Thompson, 49Jeffery Orchard, 41Alexander Goland, 74Nicole Goland, 39
Connected to:
Allison Nygren, 40Andrea L Nygren, 47Barnaby R Nygren, 59Bengt H Nygren, 76Blair G Nygren, 60Charles R Nygren, 81Christine A Nygren, 75Courtney Nygren, 56Curtis L Nygren, 68Emma Nygren, 50

Evert Nygren Phones & Addresses

  • 401 Golden West Ave, Ojai, CA 93023 (775) 240-5626
  • 632 Mills Ave, Los Altos, CA 94022 (650) 941-8483 (650) 947-9569
  • 826 Jennifer St, Incline Vlg, NV 89451 (775) 831-9272
  • Incline Village, NV
  • Rosharon, TX
  • Ventura, CA
  • 632 Mills Ave, Los Altos, CA 94022 (650) 823-4887

Work

Position: Production Occupations

Publications

Us Patents

Side-Launch Transition For Air Stripline Conductors

View page
US Patent:
42622654, Apr 14, 1981
Filed:
Mar 29, 1979
Appl. No.:
6/025229
Inventors:
Evert C. Nygren - Los Altos CA
Ching C. Han - Los Altos CA
Edgar W. Matthews - Los Altos CA
Jack E. Kelly - Sausalito CA
Paul D. Frank - Boulder CO
Assignee:
Ford Aerospace & Communications Corporation - Detroit MI
International Classification:
H01P 508
US Classification:
333 33
Abstract:
This device provides for a substantially orthogonal transition or connection point between a strip transmission line configuration (one conductor, or two conductors sandwiched around a dielectric support, positioned in air between two ground planes such as might be used in a microwave antenna feed network) and a coaxial line section. The particular construction of the "side-launch transition" suppresses spurious parallel plate modes, and, in the case of two conductors surrounding a dielectric, trapped modes which occur between the two conductors. A U-shaped upper "dam" and corresponding lower "dam," electrically interconnected at several points, surround the termination of the stripline conductor(s) and provide suppression of parallel plate molding at the transition. In the case of two conductors surrounding a dielectric, electrical interconnection at the terminal point of the stripline conductors suppresses the trapped modes before they can be launched. The system has been found to provide extremely low voltage standing wave ratios over a wide range of microwave frequencies.

Multiple Beam Antenna And Beamforming Network

View page
US Patent:
59091916, Jun 1, 1999
Filed:
Oct 1, 1997
Appl. No.:
8/942704
Inventors:
Edward Hirshfield - Cupertino CA
Evert C. Nygren - Los Altos CA
Ernesto A. Balderrama - Milpitas CA
George S. Cohen - Palo Alto CA
Assignee:
Space Systems/Loral, Inc. - Palo Alto CA
International Classification:
G01S 740
US Classification:
342174
Abstract:
An antenna element and beamforming network (10) preferably comprises a plurality of radiators (12), a plurality of band pass filters (14) and a plurality of test couplers (16). Each radiator (12) is coupled to a dedicated MMIC (18). The output of MMICs (18) are coupled to a power stripline combiner (20) to provide a single output. Each of MMICs (18) is independently controllable to shape the antenna beams as desired for producing nulls in pattern coverage. The output of stripline combiner (20) may also be coupled through an output test coupler (46) to a jammer detector and correlator (24). In one embodiment, radiators (12) are horns that include filters (14). The output of each horn is coupled to the input of its dedicated MMIC (18). In another embodiment, radiators (12) are a patch array coupled together by a stripline combiner. The output of the stripline combiner is coupled by band pass filter (14) to the input of the respective MMICs (18).

Orthogonal Launcher For Dielectrically Supported Air Stripline

View page
US Patent:
43832261, May 10, 1983
Filed:
Nov 3, 1980
Appl. No.:
6/203204
Inventors:
Evert C. Nygren - Los Altos CA
Ching C. Han - Los Altos CA
Edgar W. Matthews - Los Altos CA
Jack E. Kelly - Westlake Village CA
Paul D. Frank - Boulder CO
Assignee:
Ford Aerospace & Communications Corporation - Detroit MI
International Classification:
H01P 508
US Classification:
333 33
Abstract:
This device provides for a substantially orthogonal transition or connection point between a strip transmission line configuration (one conductor, or two conductors sandwiched around a dielectric support, positioned in air between two ground planes such as might be used in a microwave antenna feed network) and a coaxial line section. The particular construction of the "side-launch transition" suppresses spurious parallel plate modes, and, in the case of two conductors surrounding a dielectric, trapped modes which occur between the two conductors. A U-shaped upper "dam" and corresponding lower "dam," electrically interconnected at several points, surround the termination of the stripline conductor(s) and provide suppression of parallel plate moding at the transition. In the case of two conductors surrounding a dielectric, electrical interconnection at the terminal point of the stripline conductors suppresses the trapped modes before they can be launched. The system has been found to provide extremely low voltage standing wave ratios over a wide range of microwave frequencies.

Multiple Band Folding Antenna

View page
US Patent:
55572928, Sep 17, 1996
Filed:
Jun 22, 1994
Appl. No.:
8/263558
Inventors:
Evert C. Nygren - Los Altos CA
Peter W. Lord - Mountainview CA
Vito J. Jakstys - Penn Valley CA
Sina Barkeshli - Saratoga CA
Levent Ersoy - Cupertino CA
Assignee:
Space Systems/Loral, Inc. - Palo Alto CA
International Classification:
H01Q 1914
US Classification:
343781P
Abstract:
An antenna has one feed for an S-band electromagnetic signal, and a second feed constructed as an array of radiators to service two C-band signal channels. A subreflector having a microwave frequency selective surface (FSS) is placed in front of a main reflector. The C-band feed is constructed of an array of square aperture horns joined by separate transmit and receive barline beam-forming networks, and a meanderline polarizer to produce circularly polarized radiation patterns. Tapered ridges extend longitudinally along inner wall surfaces of each of the horns to provide increased bandwidth to the C-band feed. The frequency selective surface is constructed, typically, of a generally planar substrate of material transparent to electromagnetic radiation, and numerous metallic, generally annular, radiating elements, or resonators, arranged on the substrate in an array of repeating nested sets of the radiating elements. The lower frequency S-band feed is located behind and to the side of the subreflector for transmission of radiation via a folded optical path to the main reflector. The C-band feed is located in front of and to the side of the subreflector for transmission of radiation along a straight path through the FSS to the main reflector.
Control profile
Evert C Nygren from Ojai, CA, age ~87 Get Report