Ronald L Wolfson, 733644 Watseka Ave UNIT 5, Los Angeles, CA 90034

5014022, May 7, 1991

Dec 13, 1989

7/450131

Ronald I. Wolfson - Los Angeles CA
Clifton Quan - Arcadia CA

Hughes Aircraft Company - Los Angeles CA

H01P 118
H01P 1185

333161

A switched loop/180. degree. phase shift device is disclosed, having the additional capability of an aperture shutter that can be selected to produce either a noncorrelated reflection in one mode of operation, or to absorb RF energy that enters the radiating aperture port in the other mode.

4258365, Mar 24, 1981

Dec 7, 1979

6/101258

George A. Hockham - Valencia CA
Ronald I. Wolfson - Northridge CA

International Telephone and Telegraph Corporation - New York NY

H01Q 300

343763

An annular rotary antenna feed coupler especially for around-the-mast use, as on shipboard. A housing in the general shape of a cylinder with a central axial opening essentially concentric with the axial center line of the housing contains a circumferential distribution of a number of fixed axially elongated, conductive loops each with a feed port. Radially spaced therefrom, a second, group of elongated conductive loops circumferentially distributed about a circle of different radius as compared to the aforementioned fixed loops is rotatably mounted. A corresponding plurality of ports, one for each rotating loop, is also provided, and input and output combiner/divider devices, one for the fixed and another for the rotating sub-assemblies serve to combine all ports into a single fixed and a single rotating port. Mechanically, the rotating combiner/divider rotates with the antenna array with which it operates.

4161705, Jul 17, 1979

Dec 19, 1977

5/861524

Jeffrey T. Nemit - Canoga Park CA
Ronald I. Wolfson - Northridge CA

International Telephone and Telegraph Corporation - New York NY

H03H 720
H03H 722
H01P 118

333156

The invention involves in-phase power splitting from an input into separate pairs of paralleled input variable circuits which may be linear amplifiers or linear controlled attenuators. The outputs of these circuits feed the input branches of a pair of 180. degree. hybrid circuits, the outputs of those hybrids providing the inputs of a 3 db quadrature coupler. An output of this coupler then provides the overall output which is shifted in phase with respect to the original input as a function of the gain control signal applied differentially between the variable circuits of the aforementioned pairs as the cosine of the desired phase angle in respect to the first pair of circuits and in accordance with the sine of the desired phase angle at the control terminals of the second pair of circuits.

4660047, Apr 21, 1987

Oct 12, 1984

6/660176

Ronald I. Wolfson - Northridge CA
William G. Sterns - Canoga Park CA

ITT Corporation - New York NY

H01Q 148

343700MS

An antenna element including microstrip having a microstrip feed line and ground plane on opposite sides of a substrate, a resonator on the same side of the substrate as the microstrip feed line, and a dipole insulated from the feed line and from the resonator.

6101705, Aug 15, 2000

Nov 18, 1997

8/972421

Ronald I. Wolfson - Los Angeles CA
William W. Milroy - Playa Del Rey CA
Stuart B. Coppedge - Manhattan Beach CA

Raytheon Company - Lexington MA

H01P 1100

29600

Methods of fabricating air-dielectric true-time-delay, continuous transverse stub array antenna. The first method uses conventional machining or molding techniques to fabricate layers of plastic with desired microwave circuit features. The plastic layers are then metalized, assembled (aligned) and joined together, such as by using ultrasonic welding techniques. Readily available metalization and ultrasonic welding techniques exist that may be used. The second method uses sheets of metal, into which microwave circuit features are fabricated, such as by machining. The layers are then assembled (aligned) and joined together, using one of several available processes, such as an inert gas, furnace brazing technique, for example.

4243990, Jan 6, 1981

Apr 30, 1979

6/034548

Jeffrey T. Nemit - Canoga Park CA
George A. Hockham - Valencia CA
Ronald I. Wolfson - Northridge CA

International Telephone and Telegraph Corporation - New York NY

H01Q 1310

343771

An integrated planar antenna array comprising at least two separate interleaved arrays separately controllable and responding to separate frequency bands. Both arrays operate with substantially the same phase center and substantially within the same effective aperture. The first array or subarray comprises spaced linear, slotted-waveguide arrays and the second subarray includes a meander line occupying the space between each of the waveguides of the first array. Scan systems are shown for independent operation of the two arrays. An alternative for the second subarray is shown in the form of slotted, square-coaxial, linear arrays in the spaces between the waveguides of the first subarray.

5493305, Feb 20, 1996

Apr 15, 1993

8/048635

John J. Wooldridge - Manhattan Beach CA
Irwin L. Newberg - Northridge CA
Joseph P. Smalanskas - Westchester CA
Ronald I. Wolfson - Los Angeles CA

Hughes Aircraft Company - Los Angeles CA

H01Q 322

342368

An electronic device operating in the microwave frequency range having components disposed in a plurality of planes, wherein the planes are stacked vertically. The electronic device is a T/R module or element forming a part of a subarray used in an active array radar. The T/R module or element comprises a transmit chip, a receive chip, low noise amplifiers, a phase shifter, an attenuator, switches, dc power supply, interconnects that interconnect the foregoing components and logic circuits to control the foregoing components. The components when stacked in a 3-D package are disposed behind a radiator or antenna, which transmits and receives the microwave signals. Behind the T/R module or element is a manifold which provides input and output to and from the T/R module or element. The microwave chips of the T/R module are monolithic microwave integrated circuit chips and control logic, which are disposed in an aluminum nitride substrate and coated with a conformal hermetic coating. The 3-D chip package can optionally include micro channel cooling by adding additional layers.

5607631, Mar 4, 1997

Apr 1, 1993

8/045333

Ronald I. Wolfson - Los Angeles CA
Mir A. Ali - Lomita CA
William W. Milroy - Playa del Rey CA

Hughes Electronics - Los Angeles CA

C04B 3526
C04B 3700

264 61

Spatial thinning in no more than two dimensions is used in order to lower both the effective dielectric constant and the dielectric loss tangent of ferroelectric ceramics, while retaining a substantial fraction of their tunability. By not thinning in the third direction, along which the dc bias field is applied, the ferroelectric material maintains the connectivity between elements of the ferroelectric structure that is essential to retaining the tunability. Examples of one-dimensional structures (30) include small diameter columns (28, 32) of dielectric material embedded in a dielectric matrix (26, 34). Examples of two-dimensional structures (21) include square (22) and hexagonal (24) cells comprised of ferroelectric material filled with inert dielectric material or vice versa.