Tiang-Gwan Liem

Title: **Tiang-Gwan Liem: Innovator in Millimeter-Wavelength Technology**

Introduction

Tiang-Gwan Liem is an accomplished inventor located in Ulm, Germany. He has made significant contributions to the field of target identification and phased-array antenna technology, holding a total of three patents that showcase his innovative prowess.

Latest Patents

Among his recent inventions is a patented method for identifying a target as a friend or foe. This system operates in the millimeter-wavelength range and comprises an interrogator and a transponder that utilize similar electronic assemblies while functioning on a comparable transmitting and receiving frequency. The vast frequency difference between the interrogator and transponder is manageable, enabling effective operation. The interrogator employs a directional transmitting/receiving antenna, while the transponder features an omnidirectional antenna for enhanced versatility.

Another notable invention by Tiang-Gwan Liem is a phased-array antenna designed for radar frequency applications. This innovation consists of numerous linear and/or matrix-shaped transmit/receive radiator elements that are interconnected via a specific power distribution and phase shifter network. The inclusion of a transmit/receive change-over arrangement eliminates the necessity for a typical transmit/receive switch, streamlining the overall system.

Career Highlights

Throughout his career, Tiang-Gwan has worked with reputable companies in the aerospace and automotive industries, including Deutsche Aerospace AG and DaimlerChrysler AG. His experience in these sectors has contributed to the development of cutting-edge technologies that enhance operational effectiveness in various applications.

Collaborations

During his career, Tiang-Gwan has had the opportunity to collaborate with esteemed colleagues such as Wilhelm Gruener and Norbert Fuchter. These collaborations have allowed for the exchange of ideas and further innovation in their respective fields.

Conclusion

Tiang-Gwan Liem continues to be a notable figure in the realm of technological innovation, particularly in the fields of millimeter-wavelength systems and phased-array antennas. His work not only exemplifies creativity and technical insight but also paves the way for future advancements in target identification and communication technologies.