Richard A. Kirchofer
Engineering at Indian Riv Dr, Cocoa, FL
License number
Louisiana PE.0016609
Issued Date
Sep 28, 1977
Expiration Date
Mar 31, 2006
Category
Civil Engineer
Type
Electrical and Computer Engineer
Address
Address
3105 N Indian River Dr, Cocoa, FL 32922
Professional information
Interference Rejection Gps Antenna System
US Patent:
2003001, Jan 16, 2003
Filed:
Jul 11, 2001
Appl. No.:
09/902095
Inventors:
Richard Kirchofer - Cocoa FL, US
Ray Nielsen - Orlando FL, US
Ray Nielsen - Orlando FL, US
International Classification:
H01Q003/22, G01S005/14
US Classification:
342/372000, 342/357060
Abstract:
The present invention relates to a method and apparatus for selectively receiving a radio frequency (RF) signal which utilizes an array of antenna elements for receiving the RF signal, a navigational controller for determining a pointing vector from coordinate information, and beam-forming electronics connected to the array of antenna elements and the navigational controller for forming reception lobes. This apparatus and method are particularly useful in the context of a Global Positioning System (GPS) for selectively receiving RF signals from GPS satellites to determine location and timing information. In one embodiment of the present invention, the phase of the elements of the array are adjusted to form selective reception lobes and constructively amplify signals within these reception lobes, increasing the signal-to-noise ratio (SNR) with respect to noise or interference signals outside the lobes. The reception lobes are advantageously positioned such that RF signals that are desired to be received are within the lobes according to the pointing vector determined by the navigational controller.
Press Fit Corrugated Radiometer Horn
US Patent:
7564422, Jul 21, 2009
Filed:
Feb 26, 2008
Appl. No.:
12/037551
Inventors:
Jacob A. Diez - Orlando FL, US
Charles D. Guth - Cocoa FL, US
Richard A. Kirchofer - Cocoa FL, US
Guy E. Maness - Yalaha FL, US
Michael E. Weinstein - Orlando FL, US
Charles D. Guth - Cocoa FL, US
Richard A. Kirchofer - Cocoa FL, US
Guy E. Maness - Yalaha FL, US
Michael E. Weinstein - Orlando FL, US
Assignee:
Lockheed Martin Corporation - Bethesda MD
International Classification:
H01Q 13/00
US Classification:
343786, 343772, 343776
Abstract:
A radiometer horn, an array of such horns, and a method of making a radiometer horn, comprising providing at least two primary walls comprising interior corrugations and fitting into the corrugations at least one secondary wall comprising projections fitting into the corrugations, and wherein no fastener holds any of the at least one secondary walls to the primary walls.