Haigan K Chea

Title: Haigan K Chea: Innovator in Multifunction Antenna Systems

Introduction

Haigan K Chea is a notable inventor based in Oceanside, CA (US). He has made significant contributions to the field of antenna technology, holding a total of 3 patents. His work focuses on developing advanced multifunction antenna systems that enhance communication capabilities in modern tactical aircraft.

Latest Patents

One of his latest patents is a dual-feed system for a multifunction, conformal, load-bearing structure excitation antenna. This innovative antenna feed structure acts as a feed for a multibandwidth antenna system used in connection with modern tactical aircraft. The design includes a first feed and a second feed, which are electrically connected to specific feed points on the antenna element. The first feed is impedance matched to the VHF/FM and UHF frequency bands, while the second feed is matched to the VHF/AM frequency band. The feeds are strategically positioned within a flared notch between the antenna element and a conductive aircraft structural component. This configuration allows for various geometrical shapes, such as cylindrical, cone, or taper feeds, ensuring electrical isolation from the aircraft component while being connected to a matching network.

Another significant patent by Chea is the conformal load-bearing antenna system that excites the aircraft structure. This system is integrated into a load-bearing structural member of an aircraft, such as a wing or tail section, minimizing aerodynamic drag and weight. The antenna system features a flared notch of non-conductive material and an antenna feed that excites conductive portions of the structural member. This design results in high gain omnidirectional performance, supporting both vertically and horizontally polarized communication functions across a wide range of VHF and UHF bands.

Career Highlights

Haigan K Chea is currently employed at TRW Limited, where he continues to innovate in the field of antenna technology. His work has been instrumental in advancing the capabilities of communication systems in aviation.

Collaborations

Throughout his career, Chea has collaborated with notable colleagues, including Allan C Goetz and Robert G Riddle. These partnerships have contributed to the development of cutting-edge technologies in the aerospace sector.

Conclusion

Haigan K Chea is a distinguished inventor whose work in multifunction antenna systems has significantly impacted modern aviation technology. His innovative patents demonstrate a commitment to enhancing communication capabilities in tactical aircraft, showcasing his