040618_Encl_(1)_SSJ.pdf

v1.2_JUNE2016

SOLE SOURCE JUSTIFICATION

Direct Drive Power Amplifier Design

PR 1300706575

BACKGROUND:

Naval Undersea Warfare Center Division, Newport (NUWCDIVNPT) is conducting a Technology Refresh on the AN/WSQ 9 Signal Analysis System. A new conformal array concept is being developed which has a significantly smaller package size. A new power amplifier needs to be designed since existing power amplifiers cannot be packaged into the conformal array housing. QorTek, Inc. conducted a trade study on a prior contract showing a direct drive power amplifier using their patented technology achieves a compact power amplifier that can be packaged in a conformal array.

REQUIREMENT:

NUWC Division Newport requires a direct drive power amplifier be developed to drive the array elements of the conformal array that can be for packaged in a 1 ½” cylinder with height of 3 inches.. In order to achieve this packaging constraint, the new power amplifier design must have no magnetics in the output stage for voltage step-up or impedance tuning. The output semiconductors must drive the array elements directly.

SOLE SOURCE JUSTIFICATION/BRAND NAME SPECIFICATION:

Qortek is the only company that has achieved high power densities with small package sizes which were recently demonstrated on a prior program funded by the Office Naval Research. QorTek has obtained patents for high power density direct drive power amplifiers: “High Frequency Switch Circuit” 7,330,055 B2, “Gate Drive Circuit with Negative Offset” 7,170,321 B2, “Reduced Component Drive Circuit”, 6,720,706 B2 and Device and Method for Driving Symmetric Load Systems” 6,465,931 B2. These patents are used in the direct drive power amplifier which enables packaging of the power amplifier in a small package which is required for this development. In addition, Qortek is using proprietary silicon carbide junctions in the direct drive power amplifier which reduces the heat generation. Lower heat generation is necessary in this compact power amplifier where less surface area makes heat dissipation difficult.

With the requirements of the power amplifier to be physically small, Qortek’s unique expertise is required for the development of a compact power amplifier for the new conformal array concept.

RESELLERS:

There are no authorized resellers. The Direct Drive Power Amplifier Technology is a proprietary product of Qortek, Inc.