Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 40458
Amount: $69,913.00
Phase: Phase I
Program: SBIR
Awards Year: 1998
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
12725 Spectrum Drive, San Antonio, TX, 78249
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Montgomery Grimes
 (978) 251-4668
Business Contact
Phone: () -
Research Institution
The proposed program will concentrate on the design of pulse-amplitude modulators using innovative architectures to overcome the limitations of conventional designs in driving predominantly capacitive loads, such as the modulating anodes of high-power microwave vacuum tubes. The design will necessarily be capable of operation at high pulse voltage levels and at high pulse repetition rates. Typical of such an architecture is the h-Power Microwave-Tube Transmitters the capacitance associated with the modulating anode is charged and discharged through a resonating inductor, or inductors, in a sinusoidal fashion, transferring stored energy rather than dissipating it. There are numerous variants of this concept which must be investigated in order to determine an optimum design depending on the type of electronic switches and how they are used. The program will include the evaluation of the various available electronic switches, including Field-Effect Transistors (FETs), Insulated-Gate Bipolar Transistors (IGBTs), Silicon-Controlled Rectifiers (SCRs), conventional triode and tetrode vacuum tubes, and the will concentrate on selecting the best electronic switch for this application. The effort will also include breadboarding of appropriately scaled portions of complete switches.

* Information listed above is at the time of submission. *

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