Patents by Inventor Albert F. Davis
Albert F. Davis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7750853Abstract: A partially shorted microstrip antenna configured to wrap around a projectile's body without interfering with the aerodynamic design of the projectile. The microstrip antenna has three identical conformal antenna elements equally spaced around the circumference of the projectile's body. The antenna has an operating frequency of 231.0 MHz±400 KHz. Each antenna element includes a plurality of vias which operate as a partial short connecting the radiating element to the ground plane and thereby increase the bandwidth of the antenna element.Type: GrantFiled: July 29, 2008Date of Patent: July 6, 2010Assignee: The United States of America as represented by the Secretary of the NavyInventors: Anthony Cirineo, Albert F. Davis, Marvin L. Ryken
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Publication number: 20100026579Abstract: A partially shorted microstrip antenna configured to wrap around a projectile's body without interfering with the aerodynamic design of the projectile. The microstrip antenna has three identical conformal antenna elements equally spaced around the circumference of the projectile's body. The antenna has an operating frequency of 231.0 MHz±400 KHz. Each antenna element includes a plurality of vias which operate as a partial short connecting the radiating element to the ground plane and thereby increase the bandwidth of the antenna element.Type: ApplicationFiled: July 29, 2008Publication date: February 4, 2010Inventors: Anthony Cirineo, Albert F. Davis, Marvin L. Ryken
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Patent number: 7400299Abstract: A microstrip antenna configured to wrap around a projectile's body without interfering with the aerodynamic design of the projectile. The microstrip antenna has three identical conformal antenna elements equally spaced around the circumference of the projectile's body. The antenna has an operating frequency of 241.2 MHz or 231.0 MHz, a maximum diameter of ten inches and a maximum length of nine inches.Type: GrantFiled: September 21, 2006Date of Patent: July 15, 2008Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Albert F. Davis
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Patent number: 7355553Abstract: A microstrip antenna configured to wrap around approximately 270 degrees a projectile's body without interfering with the aerodynamic design of the projectile. The microstrip antenna has two identical grounded quarter wavelength microstrip antenna elements positioned around the circumference of the projectile's body. The antenna has an operating frequency of 425 MHz ±375 KHz, a maximum diameter of ten inches and a maximum length of nine inches. The microstrip antenna outputs a pair of equal amplitude flight termination signals and produces a quasi omni-directional radiation pattern with linear polarization.Type: GrantFiled: December 6, 2006Date of Patent: April 8, 2008Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Jr., Albert F. Davis
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Publication number: 20080074323Abstract: A microstrip antenna configured to wrap around a projectile's body without interfering with the aerodynamic design of the projectile. The microstrip antenna has three identical conformal antenna elements equally spaced around the circumference of the projectile's body. The antenna has an operating frequency of 241.2 MHz or 231.0 MHz, a maximum diameter of ten inches and a maximum length of nine inches.Type: ApplicationFiled: September 21, 2006Publication date: March 27, 2008Inventors: Marvin L. Ryken, Albert F. Davis
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Patent number: 7298332Abstract: An X-Band microstrip antenna for use on a fourteen inch diameter projectile to transmit telemetry data. The X-Band microstrip antenna is configured to wrap around the projectile's body without interfering with the aerodynamic design of the projectile. The X-Band microstrip antenna operates at 7900 to 8100 MHz telemetry frequency band. Sixteen microstrip antenna elements equally spaced around the projectile provide for linear polarization and a quasi-omni directional radiation pattern.Type: GrantFiled: November 17, 2005Date of Patent: November 20, 2007Assignee: United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Jr., Albert F. Davis
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Patent number: 7193567Abstract: A Telemetry antenna which uses microstrip antenna technology to cover the 2200 to 2300 MHz TM frequency band and a GPS microstrip antenna to cover the L1 Band at a frequency of approximately 1575 MHz. The antenna 12 fabricated from high dielectric constant material to reduce the size of the antenna which has a diameter of 1.364 inches.Type: GrantFiled: October 28, 2005Date of Patent: March 20, 2007Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Jr., Albert F. Davis
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Patent number: 7138949Abstract: A GPS microstrip antenna designed to receive satellite provided GPS position information for use by a fourteen inch diameter projectile. The GPS microstrip antenna is configured to wrap around the projectile's body without interfering with the aerodynamic design of the projectile. The GPS microstrip antenna operates at 1.575 GHz with a bandwidth of ±10 MHz. Eight microstrip antenna elements equally spaced around the projectile provide for right hand circular polarization and a quasi-omni directional radiation pattern.Type: GrantFiled: June 1, 2005Date of Patent: November 21, 2006Assignee: United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Jr., Albert F. Davis
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Patent number: 7109929Abstract: A TM microstrip antenna designed to transmit telemetry data for use by a fourteen inch diameter projectile. The microstrip antenna is configured to wrap around the projectile's body without interfering with the aerodynamic design of the projectile. The TM microstrip antenna operates at the 2200 to 2300 MHz TM frequency band. Eight microstrip antenna elements equally spaced around the projectile provide for linear polarization and a quasi-omni directional radiation pattern.Type: GrantFiled: June 1, 2005Date of Patent: September 19, 2006Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Jr., Albert F. Davis
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Patent number: 7009564Abstract: A TM microstrip antenna designed to transmit telemetry data for use by a nine inch diameter projectile. The microstrip antenna is configured to wrap around the projectile's body without interfering with the aerodynamic design of the projectile. The TM microstrip antenna operates at 2.25 GHz with a bandwidth of ±10 MHz. Eight microstrip antenna elements equally spaced around the projectile provide for linear polarization and a quasi-omni directional radiation pattern.Type: GrantFiled: March 31, 2004Date of Patent: March 7, 2006Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Albert F. Davis
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Patent number: 6943737Abstract: A GPS microstrip antenna designed to receive satellite provided GPS position for use by a nine inch diameter projectile. The GPS microstrip antenna is configured to wrap around the projectile's body without interfering with the aerodynamic design of the projectile. The GPS microstrip antenna operates at 1.575 GHz with a bandwidth of ±10 MHz. Eight microstrip antenna elements equally spaced around the projectile provide for circular polarization and a quasi-omni directional radiation pattern.Type: GrantFiled: March 31, 2004Date of Patent: September 13, 2005Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Albert F. Davis
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Patent number: 6940264Abstract: A near field probe for testing installed components of an electromagnetic radiating system on a missile. The probe design comprises a diode antenna with a balun. The probe utilizes a dual diode arrangement which provides approximately twice the output voltage as the previous probe. The probe may then be placed further away from the radiating system under test.Type: GrantFiled: January 29, 2004Date of Patent: September 6, 2005Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Jr., Albert F. Davis
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Patent number: 6885348Abstract: A Test Chamber for testing a frequency response of a Low Band Antenna Array output by injecting an RF test signal into the interior of the test chamber. The test chamber comprises a rectangular shaped steel enclosure having a lid. A microwave absorptive foam is affixed to the interior walls and base of the enclosure. The lid for the enclosure includes an opening and a pair of alignment pins for positioning the array's monopole antennas within the interior of the test chamber. A probe is located in one corner of the test chamber to provide the RF test signal to the array's monopole antennas.Type: GrantFiled: November 12, 2003Date of Patent: April 26, 2005Inventors: Marvin L. Ryken, Jr., Albert F. Davis, Steven J. Renga
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Patent number: 6867737Abstract: A GPS conical shaped microstrip antenna array which receives GPS data and which is adapted for use on weapons systems such as a missile or smart bomb. The microstrip antenna array has a center frequency of 1.575 GHz, a frequency bandwidth of twenty megahertz and provides for right hand circular polarization. The microstrip antenna includes a four aligned copper antenna elements which have a square shape, and a copper etched feed network which provides for a signal phase shift of ninety degrees resulting in right hand circular polarization of each of the four aligned antenna elements.Type: GrantFiled: August 27, 2003Date of Patent: March 15, 2005Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Jr., Albert F. Davis
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Patent number: 6859178Abstract: A TM cylindrical shaped microstrip antenna array which transmits telemetry data and which is adapted for use on weapons systems such as a missile or smart bomb. The microstrip antenna operates at a TM frequency band of 2210 MHz+/?2.5 MHz. The microstrip antenna is a Linear Polarized microstrip antenna with wrap around capability for a five inch diameter projectile and is constrained to a width of 1.5 inches. The microstrip antenna includes a six aligned copper antenna elements, and a copper etched feed network which provides for transmitted signals which are in phase and have equal amplitudes.Type: GrantFiled: September 19, 2003Date of Patent: February 22, 2005Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Albert F. Davis
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Patent number: 6856290Abstract: A TM cylindrical shaped microstrip antenna array which transmits telemetry data and which is adapted for use on weapons systems such as a missile or smart bomb. The microstrip antenna operates at a TM frequency band of 2200-2300, resulting in a band width for the antenna of 100 MHz. The microstrip antenna includes a GPS band-stop filter which isolates the telmetry data from the GPS L-Band carrier signals with a minimum band-stop rejection of ?60 decibels.Type: GrantFiled: September 19, 2003Date of Patent: February 15, 2005Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Albert F. Davis
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Patent number: 6842145Abstract: A reduced size microstrip antenna which receives GPS data and which is adapted for use on small diameter weapons systems such as a missile or smart bomb. The microstrip antenna has a center frequency of 1.575 GHz, a frequency bandwidth of twenty megahertz and provides for right hand circular polarization. The microstrip antenna includes a pair of quarter-wavelength antennas which have a rectangular shape and are rotated ninety degrees from one another, and a copper etched feed network which provides for a signal phase shift of ninety degrees.Type: GrantFiled: July 28, 2003Date of Patent: January 11, 2005Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Jr., Albert F. Davis
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Patent number: 6630907Abstract: A microstrip telemetry antenna adapted for use on a small diameter projectile. The antenna includes a filter integrally formed with the antenna. The antenna also has a first pair of tuning tabs and a second pair of tuning tabs which are approximately perpendicular to one another and which allow the antenna to tuned within the S-band of 2.2 to 2.3 GHz.Type: GrantFiled: July 3, 2002Date of Patent: October 7, 2003Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Albert F. Davis
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Patent number: 6621456Abstract: A microstrip antenna system having a GPS antenna for receiving GPS data, a telemetry antenna for transmitting telemetry data, a Flight Termination System antenna which receives an RF signal having a set of decoder tones and a beacon tracking antenna for providing an RF signal to allow tracking of the device utilizing the microstrip antenna system. The microstrip antenna system is designed for use on a missile.Type: GrantFiled: June 24, 2002Date of Patent: September 16, 2003Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Albert F. Davis
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Patent number: 6618017Abstract: A GPS conformal adapted for use on a small diameter projectile. The antenna includes a GPS antenna array of six driven elements The antenna also has an antenna cover which includes a parasitic element aligned the six driven elements. The electric field coupling between the parasitic element and the driven elements produces an omnidirectional radiation pattern.Type: GrantFiled: May 20, 2002Date of Patent: September 9, 2003Assignee: The United States of America as represented by the Secretary of the NavyInventors: Marvin L. Ryken, Albert F. Davis