Donald J Mullenhoff

6348898, Feb 19, 2002

Jun 25, 1999

09/340178

Erwin T. Rosenbury - Livermore CA
Gerald J. Burke - Livermore CA
Scott D. Nelson - Tracy CA
Robert D. Stever - Lathrop CA
George K. Governo - Livermore CA
Donald J. Mullenhoff - Livermore CA

The Regents of the University of California - Oakland CA

H01Q 1300

343786, 343772, 343795

An antenna apparatus and method for building the antenna is disclosed. Impulse signals travel through a feed point of the antenna with respect to a ground plane. A geometric fin structure is connected to the feed point, and through a termination resistance to the ground plane. A geometric ridge structure connected to the ground is positioned with respect to the fin in order to receive and radiate electromagnetic energy from the impulse signal at a predetermined impedance and over a predetermined set of frequencies. The fin and ridge can be either a wire or a planar surface. The fin and ridge may be disposed within a radiation cavity such as a horn. The radiation cavity is constructed of stamped and etched metal sheets bent and then soldered together. The fin and ridge are also formed from metal sheets or wires. The fin is attached to the feed point and then to the cavity through a termination resistance.

45861382, Apr 29, 1986

Jul 29, 1982

6/403161

Donald J. Mullenhoff - Livermore CA
Stephen W. Wilson - Livermore CA

The United States of America as represented by the United States
Department of Energy - Washington DC

G01B 528
G06F 1520

364424

A system for recording terrain profile information is disclosed. The system accurately senses incremental distances traveled by a vehicle along with vehicle inclination, recording both with elapsed time. The incremental distances can subsequently be differentiated with respect to time to obtain acceleration. The acceleration can then be used by the computer to correct the sensed inclination.