Diana Arceo

US Patent:

7816995, Oct 19, 2010

Filed:

Mar 6, 2009

Appl. No.:

12/399316

Inventors:

Jeffery C. Allen - San Diego CA, US
John W. Rockway - San Diego CA, US
Diana Arceo - San Diego CA, US
Jeffery Young - Moscow ID, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

H01P 1/32
H01P 1/38

US Classification:

333 11, 455 73

Abstract:

A system includes a first circulator, a second circulator connected to the first circulator and a load, a third circulator connected to the second circulator, and a filter connected between the first and third circulators. The filter modifies the phase and amplitude of a first signal from the first circulator to produce a modified first signal. The modified first signal amplitude may be equal to the amplitude of a second signal from the second circulator. The phase of the modified first signal is about 180 degrees out of phase with the second signal phase. The third circulator circulates the modified first signal towards the second circulator. The first signal comprises a coupled signal from the first circulator. The second signal comprises a signal reflected from the load and a coupled signal from the second circulator. The filter may be a passive network having lumped, distributed, and resistive elements.

US Patent:

8064555, Nov 22, 2011

Filed:

Jan 22, 2009

Appl. No.:

12/358029

Inventors:

John W. Rockway - San Diego CA, US
Diana Arceo - San Diego CA, US
Jeffery C. Allen - San Diego CA, US
Karl Moeller - San Diego CA, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

H04B 1/10
H03F 3/04
H03F 3/68

US Classification:

375349, 330295, 330310, 330311, 330124 R, 330126

Abstract:

A system includes an input multi-level channelizer, an output multi-level channelizer, and more than one amplifiers connected between the input and output channelizers. The input and output channelizers cover an operating frequency band. Each level of the input multi-level channelizer comprises a plurality of input channels, which may be bandpass filters, and may be grouped into input sub-channelizers. Each successive level of the input multi-level channelizer is configured to divide the incoming signals into smaller frequency bands. Each level of the output multi-level channelizer comprises a plurality of output channels, which may be bandpass filters, and may be grouped into output sub-channelizers. Each successive level of the output multi-level channelizer is configured to combine the incoming signals into larger frequency bands. The signal output from the output multi-level channelizer represents a filtered version of the signal input into the input multi-level channelizer.

US Patent:

7719384, May 18, 2010

Filed:

Sep 25, 2008

Appl. No.:

12/237592

Inventors:

Diana Arceo - San Diego CA, US
John W. Rockway - San Diego CA, US
Jeffery C. Allen - San Diego CA, US
Jeffery Young - Moscow ID, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

H03H 7/01
H01P 1/32

US Classification:

333132, 333 11

Abstract:

A system includes more than one subsystem, each subsystem operating within a different subsystem frequency range, the subsystems comprising a circulator having three or more circulator ports and a direction of circulation, the circulator operating within a specific frequency range of the subsystem frequency range, and a filter, such as a bandpass filter, connected to at least one of the circulator ports. The filters each define a subsystem port and operate within the specific frequency range. Each subsystem port has a port index determined by the direction of circulation of the circulator within the subsystem. Each subsystem port has a specific port index that is connected to a common port having the specific port index. At least one of the circulator ports may be terminated to a matched load. Each subsystem circulator may comprise at least three circulator ports, with a filter connected to each of the circulator ports.

US Patent:

20160157395, Jun 2, 2016

Filed:

Dec 9, 2015

Appl. No.:

14/963464

Inventors:

Daniel Wing Shum Tam - San Diego CA, US
Lu Xu - San Diego CA, US
Diana Arceo - San Diego CA, US

Assignee:

United States of America, as Represented by the Secretary of the Navy - Arlington VA

International Classification:

H05K 9/00

Abstract:

A method for deploying a lightweight, flexible Faraday cage around a device can include the step of directing the conductive fluid flow in a manner that causes a shroud to form over the device. In some embodiments, a flexible material such as canvas can be deployed over the device and the conductive fluid can be sprayed onto the flexible material to form the shroud. In other embodiments, a plurality of nozzles can be placed around the perimeter of the device, and the nozzles can be directed at a predetermined point over the device. The streams can meet at the predetermined point, collide and thereby provide the conductive shroud for the device. The shroud can have a skin depth, which can be chosen according to the desired frequency of electromagnetic radiation to be blocked, typically from one to one hundred millimeters (1-100 mm).

US Patent:

20150318607, Nov 5, 2015

Filed:

Jul 7, 2015

Appl. No.:

14/793547

Inventors:

- San Diego CA, US
Lu Xu - San Diego CA, US
Albert Ryu - Fremont CA, US
John D. Rockway - San Diego CA, US
Diana Arceo - San Diego CA, US
Justin A. Church - San Diego CA, US

International Classification:

H01Q 1/36
H03H 11/00

Abstract:

An antenna comprising: a driven element; an input feed coupled to the driven element wherein the input feed is configured to be connected to a receiver; a non-Foster circuit having a negative impedance, wherein the non-Foster circuit is configured to actively load the antenna at a location on the antenna other than at the input feed; and wherein the antenna may be contained within an imaginary sphere having a radius a, and wherein the product ka is less than 0.5, where k is a wave number.