Alfred R Koelle

Title: **Alfred R. Koelle: Innovator in Transponder Technology**

Introduction

Alfred R. Koelle is a notable inventor based in Santa Fe, NM, who has made significant contributions to the field of transponder technology. With a total of 12 patents to his name, Koelle's innovations reflect his expertise and commitment to improving communication systems.

Latest Patents

Among Koelle's latest patents is a groundbreaking invention titled "Transponder Employing Modulated Backscatter Microstrip Double Patch." This invention involves a reader that interrogates a transponder attached to a remote object. The transponder features a microstrip patch antenna with two segments connected by a switch. Each segment is designed to be one-half wavelength, allowing the antenna to resonate fully at the interrogating signal's frequency. The switch's operation couples and decouples the segments, which enables the production of maximum and minimum reflected signals when in closed and open positions, respectively. This modulation of backscatter signals allows for effective decoding at the reader to identify remote objects.

Another significant patent by Koelle is the "Single Antenna Location and Direction Finding System." This invention provides a circuit that analyzes backscatter-modulated RF signals from a transponder to determine if it is stationary or in motion relative to the reader. The system offers a sophisticated analysis through the generation of three signals with different phases, enabling accurate measurement of the transponder's speed and direction without the need for multiple antennas.

Career Highlights

Koelle has worked with reputable organizations such as Amtech Corporation and the United States of America as represented by the United States. His contributions in these positions have solidified his reputation as an innovative thinker in the field of RF communication and transponder technology.

Collaborations

Throughout his career, Alfred R. Koelle has collaborated with talented individuals, including his coworkers Jeremy A. Landt and David A. Eckhardt. These partnerships have likely played a role in the development of his advanced technologies and patent applications.

Conclusion

Alfred R. Koelle's work in transponder technology underscores the importance of innovation in modern communication systems. With 12 patents highlighting his contributions, Koelle continues to influence the field as a leading inventor, providing solutions that enhance the functionality of transponders and the efficiency of data transfer.