JOSEPH R MATTIOLI
Dentist in Philadelphia, PA
License number
Pennsylvania DS012511L
Category
Dentistry
Type
Dentist
Address
Address
Philadelphia, PA 19152
Personal information
See more information about JOSEPH R MATTIOLI at radaris.comName
Address
Phone
356 Village Rd, Dallas, PA 18612
19 Old Oak Rd, Tunkhannock, PA 18657
1259 Rydal Rd, Rydal, PA 19046
25 Lincoln St, Kingston, PA 18704
270 College St, Allentown, PA 18104
Professional information
See more information about JOSEPH R MATTIOLI at trustoria.com
Active Array Antenna Radar Structure
Active Array Antenna Radar Structure
US Patent:
5459474, Oct 17, 1995
Filed:
Mar 22, 1994
Appl. No.:
8/215551
Inventors:
Joseph A. Mattioli - Philadelphia PA
Ashok K. Agrawal - Mount Laurel NJ
Norman R. Landry - Mount Laurel NJ
Ashok K. Agrawal - Mount Laurel NJ
Norman R. Landry - Mount Laurel NJ
Assignee:
Martin Marietta Corporation - Moorestown NJ
International Classification:
H01Q 124
US Classification:
343702
Abstract:
An active array antenna, which may be used for radar, includes antenna elements (antelements) supported in a two-dimensional array. The fronts of the elements are protected by a cover. In order to allow easy repair, each column of antelements is associated with a slide-in carrier which simultaneously mates with all antelements of a column. Each carrier has a transmit-receive (TR) module for each antelement with which it mates, and a column beamformer. Each carrier also has logic modules and power supplies for the TR modules. The total width of each slide-in carrier with its TR modules, beamformer, logic and power supplies, is less than or equal to the column-to-column spacing. Each carrier can be slid out from the rear to expose all the active components for each column of antelements, so maintenance can be performed without environmental exposure.