Joseph L Merenda

US Patent:

6606063, Aug 12, 2003

Filed:

Feb 26, 2002

Appl. No.:

10/084000

Inventors:

Joseph T. Merenda - Northport NY

Assignee:

BAE Systems Information and Electronic Systems Integration Inc. - Greenlawn NY

International Classification:

H01Q 126

US Classification:

343701, 343741, 343866, 343876

Abstract:

Radiation synthesizer systems provide efficient wideband operation with an antenna, such as a loop, which is small relative to operating wavelength. Energy dissipation is substantially reduced by cycling energy back and forth between a high-Q radiator and a storage capacitance. Systems using multi-segment loop antennas match antenna input impedance to switching circuit parameters. Control signal feeds employ fiber-optic cables and reduce conductive paths. Multi-voltage DC supply configurations use parallel conductor portions of antenna loop segments and reduce the need for separate DC supply conductors. Spurious conductive loops are thereby reduced and lightweight, flexible antenna constructions are enabled.

US Patent:

6614403, Sep 2, 2003

Filed:

Apr 1, 2002

Appl. No.:

10/114102

Inventors:

Joseph T. Merenda - Northport NY

Assignee:

Bae Systems Information and Electronic Systems Integration, Inc. - Greenlawn NY

International Classification:

H01Q 1112

US Classification:

343741, 343701, 343742, 343876, 331 16, 333103

Abstract:

Radiation synthesizer systems provide efficient wideband operation with an antenna, such as a loop, which is small relative to operating wavelength. Energy dissipation is substantially reduced by cycling energy back and forth between a high-Q radiator and a storage capacitance under control of a switching circuit. In addition to transmit operation using an energy source such as a battery, by reciprocity receive systems deliver received signals to an output device, such as a speaker or other audio or visual transducer device. By efficient direct processing, via controlled activation of switch devices of switch modules, incident RF signals are converted to baseband signals. Commercial type AM receivers may be provided without IF processing and detection or analog filters.

US Patent:

6680710, Jan 20, 2004

Filed:

Apr 2, 2002

Appl. No.:

10/114101

Inventors:

Joseph T. Merenda - Northport NY

Assignee:

BAE Systems Information and Electronic Systems Integration Inc. - Greenlawn NY

International Classification:

H01Q 1112

US Classification:

343742, 343701, 343867, 343876

Abstract:

Radiation synthesizer systems provide efficient wideband operation with loop antenna elements which are small relative to operating wavelength. Energy dissipation is substantially reduced by cycling energy back and forth between a high-Q radiator and a storage capacitance under control of a switching circuit. Systems using multi-segment loop antennas match input impedance to switching circuit parameters. Use of such antennas in crossed-loop configurations excited in quadrature and supported on a wearable garment provide body-borne antennas with isotropic type coverage. With light-weight flexible construction, a wearable radiating system can avoid any need for visually identifiable features and provide effective antenna pattern coverage regardless of the wearers body orientation, whether standing, prone or otherwise.

US Patent:

6879192, Apr 12, 2005

Filed:

Oct 18, 2001

Appl. No.:

09/982943

Inventors:

Joseph L. Merenda - Massapequa NY, US

Assignee:

L-3 Communications Corporation - New York NY

International Classification:

H04B001/26
H04B001/18

US Classification:

327113, 455326, 455330, 455293

Abstract:

A surface mount, even harmonic mixer is preferably used in point-to-multipoint millimeter wave transceivers. The mixer includes an anti-parallel series arrangement of diodes in one or more ring quads to increase the input 1 dB compression point and third-order input intercept point (IP3), while maintaining the benefits inherent with even harmonic mixing.

US Patent:

7026869, Apr 11, 2006

Filed:

Jan 8, 2003

Appl. No.:

10/338325

Inventors:

Joseph L. Merenda - Massapequa NY, US
Michael Zaffarano - Bellport NY, US
Eric Darvin - East Northport NY, US

Assignee:

L-3 Communications - Hauppauge NY

International Classification:

H03F 3/195

US Classification:

330 66, 333247, 257728

Abstract:

A broadband driver amplifier module is made using an arrangement of MMICS and microstrip to provide inline rf connectors for the input and output and a small package size. The input and output microstrips incorporate a microstrip portion which is at an angle to the axis of the input connector providing an offset from the axis of the input connector. There is provided at least one MMIC extending from the input microstrip at the offset across the input connector axis and having an output on the other side of the axis. This arrangement provides for an overall zigzag configuration which reduces the axial length of the package while maintaining inline input and output connectors. The invention further includes novel arrangements for MMIC mounting and d. c. blocks used in the amplifier.

US Patent:

7053853, May 30, 2006

Filed:

Jun 26, 2003

Appl. No.:

10/607405

Inventors:

Joseph Merenda - Northport NY, US
Mark J. Rich - Menlo Park CA, US

Assignee:

SkyPilot Network, Inc. - Santa Clara CA

International Classification:

H01Q 9/16

US Classification:

343820

Abstract:

A planar antenna that facilitates directional communication to a mesh network. The antenna is housed in a relatively small, planar package that can easily be attached to a window pane to enable the antenna to communicate with a neighboring rooftop mounted node of the mesh network. The package contains an M by N element phased array, where M and N are integers greater than one. The array is driven by microwave signals supplied from a P-angle phase shifting circuit, where P is an integer greater than one. Thus, the antenna synthesizes a single main beam and the antenna's main beam can be electrically “pointed” in one of P directions. In one embodiment of the invention, the array comprises 40 physical elements (8×5 elements) and has three selectable directions (i. e. , the phase shifters provide +90, 0 and −90 degree shifts that move the beam left 45 degrees, center and right 45 degrees).

US Patent:

48891797, Dec 26, 1989

Filed:

Nov 25, 1987

Appl. No.:

7/125167

Inventors:

Joseph T. Merenda - Northport NY

Assignee:

J. R. Microwave, Inc. - Northport NY

International Classification:

F25B 2900
G05D 2300
G05D 2330

US Classification:

165 14

Abstract:

An apparatus for interconnecting a four wire control such as a thermostat and a four wire system such as a heating/cooling system with two wires. An encoder encodes signals provided by the thermostat so that four encoded signals may be transmitted over a two wire system. The apparatus includes inductors which are selectively connected to the thermostat thereby providing varying signals which can be delivered over the two wires between the thermostat and the system.

US Patent:

47960175, Jan 3, 1989

Filed:

Jan 20, 1987

Appl. No.:

7/005207

Inventors:

Joseph T. Merenda - Northport NY

Assignee:

J. R. Microwave, Inc. - Northport NY

International Classification:

G08B 2100

US Classification:

340620

Abstract:

A resistive water probe is used in combination with a Christmas tree stand to detect a low water level. A low water situation activates lights in a Christmas tree ornament.