William Conrad Jennings
Engineers at Rpd Crk Trl, Iowa City, IA

6816128, Nov 9, 2004

Jun 25, 2003

10/603543

William C. Jennings - Iowa City IA

Rockwell Collins - Cedar Rapids IA

H01Q 1520

343915, 343700 MS

A terrestrially deployed flexible antenna is disclosed. The antenna includes a planar, flexible dielectric material having a first side and a second side. A flexible conductive ground plane is secured to the first side of the dielectric material. At least one flexible, planar conductive element is secured to the second side of the flexible dielectric material. The flexible dielectric material is bonded to form a collapsible enclosed volume with the ground plane forming an inner surface of the enclosed volume. A propellant is disposed within tie enclosed volume. The propellant releases a predetermined volume of gas when ignited. An igniter ignites the propellant to release the predetermined volume of gas, to thereby temporarily expand the enclosed volume to a predetermined shape such that the ground plane, the dielectric material, and the at least one conductive element cooperate to form a resonant antenna circuit.

8217850, Jul 10, 2012

Aug 14, 2008

12/228594

William C. Jennings - Iowa City IA, US
James B. West - Cedar Rapids IA, US

Rockwell Collins, Inc. - Cedar Rapids IA

H01Q 21/10

343810, 343722, 343853, 343893, 343812

The present invention is an adjustable beamwidth, loaded monopole antenna array. The array may include four monopole antennas. Each of the antennas may include a generally symmetric, tapered radiating element and an inductive shorting wall element. The array may further include a capacitive top hat element which may be connected to each of the antennas. The array may further include a ground plane element which may be connected to each of the antennas. The array may further include a plurality of feed posts which may be connected to the antennas. Further, each feed post may be connected to a power feed line. Each radiating element may be variably phase-fed and/or uniformly phase-fed for allowing the antenna array to effect a directional beam and/or an omni-directional beam.

8344935, Jan 1, 2013

Jul 22, 2010

12/841642

Ted J. Hoffmann - Hiawatha IA, US
Andrew M. Vesel - Indialantic FL, US
Roger A. Dana - Marion IA, US
Mark A. Mulbrook - Marion IA, US
William C. Jennings - Iowa City IA, US

Rockwell Collins, Inc. - Cedar Rapids IA

G01S 13/00

342 30, 342 52

The present invention is directed to an avionics system. The avionics system may include a plurality of multi-function antennas. Each multi-function antenna includes a plurality of antenna elements and an antenna electronics system, the antenna electronics system being communicatively coupled with the plurality of antenna elements. The multi-function antennas are configured for being mounted to an exterior surface of a pressure vessel (ex—an exterior surface of an aircraft). The avionics system may further include a plurality of LRUs connected to the antennas via fiber optical cables, the LRUs being located in an interior of the aircraft. The LRUs receive communication control inputs from a communication system and establish settings of the LRUs based upon the received communication control inputs. The multi-function antennas are configured for performing operations (exs. —transmit operations, receive operations) based upon the settings established by the LRUs and based upon the communication control inputs.

8063837, Nov 22, 2011

Sep 23, 2008

12/284558

William C. Jennings - Iowa City IA, US
James B. West - Cedar Rapids IA, US
John Mather - Cedar Rapids IA, US
Ross K. Wilcoxon - Cedar Rapids IA, US

Rockwell Collins, Inc. - Cedar Rapids IA

H01Q 1/28

343705, 343708

The present invention is a system which includes an interposer. The interposer may include a mounting plate for mounting the interposer to a fuselage of an aircraft. The interposer may interface with the fuselage to form a seal for maintaining pressure within the aircraft. The system may further include an antenna module. The antenna module may include a ground plane, an aircraft antenna, and a radome. The ground plane may be connected to the aircraft antenna and may be configured for allowing the antenna module to be mounted to the interposer. The radome may be connected to the ground plane to form an enclosure for housing the antenna. The antenna module may be removably connected to the interposer. The system may further include an interconnect for electrically connecting the antenna module to electronics located within the aircraft. The antenna module may be disconnected from the interposer without breaking the seal formed between the interposer and the fuselage.

6020854, Feb 1, 2000

May 29, 1998

9/086638

Paul G. Jagnow - Iowa City IA
William C. Jennings - Iowa City IA

Rockwell Collins, Inc. - Cedar Rapids IA

H01Q 128, H01Q 900

343705

An antenna for utilization in a fuse of an artillery shell is disclosed. The antenna comprises a radiator, a capacitance hat disposed at a first end of the radiator for capacitively loading the radiator and a ground plane disposed at a second end of the radiator such that the antenna is a monopole antenna. The antenna also includes a dielectric having a top surface, a bottom surface and a central longitudinal axis wherein the capacitance hat is disposed on the top surface of the dielectric and the ground plane is disposed on the bottom surface of the dielectric. A fuse utilized for detonating the explosive charge of an artillery shell is further disclosed. The fuse includes a fuse casing with the antenna of the present invention disposed within the interior cavity of the fuse casing.

7548202, Jun 16, 2009

Aug 29, 2006

11/511565

William C. Jennings - Iowa City IA, US

Rockwell Collins, Inc. - Cedar Rapids IA

G01S 3/52

342418

A radio direction finding antenna is disclosed. A dielectric material is configured to rotate about an axis of rotation. The dielectric material has a first conductive surface. A radiating element or array of radiating elements are disposed within the dielectric material and are electrically isolated from the first conductive surface. The radiating element or array of radiating elements are positioned a distance away from the axis of rotation and are configured to be resonant at a predetermined frequency in the case of a single radiating element or various frequencies in the case of an array of radiating elements. Rotation of the dielectric material and radiating element or array of elements about the axis of rotation causes a Doppler effect in signals received by the radiating element or array of elements. An artillery fuse incorporating the radio direction finding antenna is also disclosed.

8487822, Jul 16, 2013

Sep 13, 2007

11/900843

William C. Jennings - Iowa City IA, US

Rockwell Collins, Inc. - Cedar Rapids IA

H01Q 3/22

343745

A variable frequency antenna including a dielectric element and an enclosure within the dielectric element. An electrically conductive liquid metal is disposed in the enclosure. The liquid metal is a eutectic mix of about 68. 5% gallium, about 21. 5% indium, and about 10% tin. Changing the temperature of the liquid metal causes the liquid metal to change volume within the enclosure, thereby changing an RF frequency characteristic of the liquid metal.