James J Komiak

6617938, Sep 9, 2003

Apr 1, 2002

10/113279

James J. Komiak - Merrimack NH, 03054

H03K 702

332115, 332116, 375353

Direct up-conversion of a signal is accomplished using a sampling pulse generator circuit and a gated differential amplifier, enabled by the sampling signal. When not enabled, the output of the differential amplifier is pulled to zero. The sampling pulse is generated from a base frequency sine wave which is squared with a limiting amplifier, and further passed through one or more frequency doublers producing a times two signal, a times four signal and so on. The squared base frequency and frequency doubled signals are logically ORed to produce a short duration pulse which repeats at the frequency of the base signal. The resulting output is an amplitude modulated pulse doublet time domain waveform.

6888382, May 3, 2005

Dec 18, 2002

10/323060

James J. Komiak - Merrimack NH, US

BAE Systems Information and Electronic Systems Integration Inc. - Nashua NH

G11C027/02

327 94, 327309

An X-band capable track and hold amplifier capable of handling input frequencies of greater than 1 GHz, and as high as 15 GHz. The amplifier is built using a pseudomorphic high electron mobility transistor (PHEMT) process which gives high yield and uniformity.

6911859, Jun 28, 2005

Apr 28, 2003

10/424377

James J. Komiak - Merrimack NH, US

Bae Systems Information and Electronic Systems Integration Inc. - Nashua NH

G06F007/556

327350, 327351

A conversionless direct detection system for detecting signals having a very large dynamic range, with a virtually unlimited bandwidth utilizes a successive detection approach having successive log amplifier gain stages, with each gain stage involving simultaneous use of an RF transistor to perform both limiting and logging functions. FET transistors are used to extend the operating range beyond 200 GHz, with the self-bias in combination with a drain resistor limiting voltage and current swings. A log video output is tapped off the source resistor and is coupled to a buffering stage, with the outputs of the buffering stage summed to accommodate very large dynamic range swings of the input voltage, with successive stages saturating at different points to operate at different and contiguous regions, thus to provide the wide dynamic range. The limited RF signal is tapped off the drain resistor, with the stages connected in series to provide the limited RF output as the output of the last stage.

7106245, Sep 12, 2006

Jan 22, 2003

10/501652

James J. Komiak - Merrimack NH, US
Danny A. Barnum - Merrimack NH, US
David E. Maron - Merrimack NH, US

Bae Systems Information and Electronic Systems Integration Inc. - Nashua NH

G01S 13/79

342 42, 342 44, 342 45, 342 51

An RF tag is provided to communicate with an interrogating source in which the tag has programmability and flexibility to uplink data to multiple platforms. As such the RF tag functions as a miniature programmable transceiver capable of communicating with a plurality of different platforms each having different waveform characteristics. With well-controlled spectral characteristics due to stored waveforms and the use of specialized direct digital up and down conversion techniques, data rates up to 256 kbps are achievable. The tag is thus capable of converting microwave signals directly to digital inputs, and the transmitter generates microwave signals directly from digital outputs. Flexible digital processing also allows a throughput of 900 BOPS when using field programmable gate arrays.

51111578, May 5, 1992

May 1, 1991

7/694410

James J. Komiak - Lansing NY

General Electric Company - Syracuse NY

H03F 360

330286

An octave band decade watt power amplifier is disclosed using compact and efficient MMIC fabrication techniques. The power amplifier is a two stage amplifier in which the driver transistor has two cells, and the power transistor has four cells, with each power cell double the size of the driver cells. Both transistors are of an optimized topology facilitating efficient broad band operation at matchable impedance levels. They are interconnected by three four section impedance matching networks of which the input network is coupled to a 50 ohm signal input terminal. The input and the interstage network are both formed on the same substrate as the transistors. The output network is formed on a separate substrate having a high dielectric constant (i. e. 37) which facilitates efficient and compact matching of four power transistor cells to a single output terminal for connection to a load at the conventional (50 ohm) impedance.

49010328, Feb 13, 1990

Dec 1, 1988

7/278548

James J. Komiak - Lansing NY

General Electric Company - Syracuse NY

H03F 3195

330277

The invention relates to a digitally controlled variable power amplifier for radio frequency signals. The power amplifier has application to power amplifiers for driving the individual elements of a phased array radar system in which accurate tapering of the power supplied to individual antenna elements is desired for sidelobe control in the face of jamming and other circumstances. In this application, each power amplifier must maintain a stable phase transfer response and should remain at a high power transfer efficiency at each reduced power setting. This performance is achieved by the use of a power transistor of a segmented dual gate design. The segments of the second gate electrode are of digitally scaled widths and are individually energized to activate digitally scaled regions of the transistor. These regions are operated in a saturated class "A" mode in all power settings to achieve the desired stable phase transfer response and high power added efficiency.

20170366143, Dec 21, 2017

Jun 16, 2016

15/183865

- Nashua NH, US
James J. Komiak - Merrimack NH, US

H03F 1/38
H03F 1/42
H03F 3/195

A device, system and method for a wideband low noise amplifier is provided. The device may include a main amplifier and an error amplifier. In each amplifier is a phase inverter configured to invert the incoming signal. Additionally, rather than being formed from discrete components, the conductors of this wideband low noise amplifier are formed from microwave monolithic integrated circuits to provide for greater efficiency, which enables the low noise amplifier to operate in wideband rather than narrowband. A method of using the same is also provided.

20170302002, Oct 19, 2017

Apr 14, 2016

15/098510

- Nashua NH, US
James J. Komiak - Merrimack NH, US

H01Q 21/06
H01Q 1/28

A phased array antenna which can change the configuration of the phased array antenna by controllable quad switches on the phased array antenna is presented. The phased array antenna adapts monolithic microwave integrate circuit (MMIC) technology to have high isolation interconnection of the reconfigurable phased array antenna. The reconfigurable phased array antenna can be reusable and adaptable to different configurations so that the overall cost and lead time of the phased array antenna is reduced compared to the existing RF antennas in the market.