EDWARD F JOHNSON
Accountancy in Woburn, MA
License number
Massachusetts 16275
Issued Date
Feb 17, 1994
Expiration Date
Jun 30, 2017
Type
Certified Public Accountant
Address
Address
Woburn, MA 01801
Personal information
See more information about EDWARD F JOHNSON at radaris.comName
Address
Phone
50 Fairlawn Ave APT C7, Mattapan, MA 02126
50 Lowell Blvd, Methuen, MA 01844
5 18Th St W, Salisbury, MA 01952
Professional information
See more information about EDWARD F JOHNSON at trustoria.com
Broadband Stripline Coupler
Broadband Stripline Coupler
US Patent:
5012209, Apr 30, 1991
Filed:
Jan 12, 1990
Appl. No.:
7/464066
Inventors:
John A. Lantagne - Salem NH
Edward G. Johnson - Woburn MA
Michael J. Virostko - Townsend MA
Edward G. Johnson - Woburn MA
Michael J. Virostko - Townsend MA
Assignee:
Raytheon Company - Lexington MA
International Classification:
H01P 518
US Classification:
333116
Abstract:
Microwave apparatus fabricated in stripline is shown to be made up of (a) printed circuitry to form a directional coupler on both sides of a sheet of a dielectric material effectively suspended in space between a pair of ground planes, the printed circuitry being connected by shorting posts passing through the dielectric material; and (b) a matching section, formed from a dielectric material having a dielectric constant greater than unity, overlying portions of the printed circuitry.