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HIGH POWER MILLIMETER WAVE RADIAL COMBINER FOR SOLID-STATE APPLICATIONS

Award Information

Agency:
Department of Defense
Branch:
Army
Award ID:
2357
Program Year/Program:
1986 / SBIR
Agency Tracking Number:
2357
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Flam & Russell, Inc.
506 Prudential Road Horsham, PA 19044
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1986
Title: HIGH POWER MILLIMETER WAVE RADIAL COMBINER FOR SOLID-STATE APPLICATIONS
Agency / Branch: DOD / ARMY
Contract: N/A
Award Amount: $290,000.00
 

Abstract:

AN EFFICIENT WAY TO COMBINE OUTPUTS FROM MULTIPLE SOLID-STATE AMPLIFIERS USES A CAVITY STRUCTURE. THEIR ADVANTAGES INCLUDE: LOW LOSS, AMPLITUDE AND PHASE BALANCE, LARGE NUMBER OF INPUT PORTS, BROAD BANDWIDTH AND HIGH POWER HANDLING. THEIR MAJOR DISADVANTAGE, HOWEVER,IS THAT THEY MODE. MODING, WHICH CAUSES ISOLATION PROBLEMS, WILL OCCUR WHEN THE AMPLIFIERS ARE DISSIMILAR OR WHEN FAILURES EXIST UNLESSTHE COMBINING STRUCTURE IS PROPERLY DESIGNED. PREVIOUS DESIGNS HAVE AVOIDED MODING BY USING MODE OBSORBERS AND/OR EXTERNAL ISOLATORS, WHICH INCREASES INSERTION LOSS. IN ORDER TO PROPERLY DESIGN SUCH A STRUCTURE, ONE MUST BE ABLE TO THEORETICALLY PREDICT A COMPLETE SCATTERING MATRIX NETWORK DESCRIPTION, NOT MERELY THE IMPEDANCE TRANSFORMATION PROPERTIES. THIS DIFFICULT MATHEMATICAL PROBLEM, HERETOFORE UNSOLVED, HAS RECENTLY BEEN SOLVED BY THE STAFF OF FLAM & RUSSELL, INC. (FR). USING THIS S-MATRIX COMPUTER MODEL IN CONJUNCTION WITH MODELS FOR MILLIMETER-WAVE SOLID-STATE AMPLIFIERS WILL OPTIMIZE THE DESIGN OF THE MILLIMETER-WAVE COMBINER. FR RECENTLY APPLIED THIS APPROACH TO A 60-WAY COMBINER FOR AN S-BAND RADAR TRANSMITTER, AND A 24-WAY DIVIDER FOR A KU-BAND ANTENNA ARRAY.

Principal Investigator:

R P Flam
2156745100

Business Contact:

Small Business Information at Submission:

Flam & Russell Inc.
Po Box 444 Horsham, PA 19044

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No