James J Loftus

Title: James J Loftus: Innovator in Electromagnetic Field Sensing

Introduction

James J Loftus is a notable inventor based in Alexandria, VA (US). He has made significant contributions to the field of electromagnetic sensing, particularly with his innovative patent that addresses the complexities of measuring electric and magnetic fields.

Latest Patents

Loftus holds a patent for an "EM Sensor for determining impedance of EM field." This invention presents a method and device for determining the impedance of electric and magnetic fields in both near and far fields associated with a radiating antenna. The system is designed to sense electric and magnetic field components in a far field location, calibrated using a known relationship between these components. The sensed signals are transmitted optically via a fiber optic link to an optical receiver. The received optical signals are then modulated by an audio signal generator and input into a ratio detector through variable attenuators, which are utilized to calibrate the system. Multiple subsequent ratios are measured and recorded as a function of the sensor's location.

Career Highlights

James J Loftus is currently employed by the US Government as represented by the Secretary of the Army. His work focuses on advancing technologies that enhance the understanding and measurement of electromagnetic fields, which are crucial for various applications in defense and communication.

Collaborations

Loftus has collaborated with Andrew A Cuneo, Jr., contributing to the development and refinement of his innovative technologies.

Conclusion

James J Loftus is a distinguished inventor whose work in electromagnetic field sensing has the potential to impact various technological fields. His patent reflects a deep understanding of electromagnetic principles and showcases his commitment to innovation.