A review on the advent of magnetrons at high frequency (mm and THz) gateway

Abstract

Radio frequency vacuum electronic devices (RF VEDs) have been quite a promising milestone in radiowave and microwave generation for decades. With advance technologies, the VEDs are now heading toward higher frequency range viz. millimeter (mm) wave and Terahertz (THz) with substantial power. The prompted techniques, improvisations, and improvements, particularly in magnetrons, have been substantial for propelling the modern day high frequency application requirements. The paper now puts a review in the context of the various techniques, structures, and technologies suggested and implemented to reassert the feasibility of magnetrons as a promising representative of VEDs for mm and THz radiation generation. Performance parameters like power, operating frequency, efficiency, etc., serve to examine the development trends of mm and THz magnetrons.

Keywords:

• Millimeter and terahertz magnetrons
• spatial harmonic magnetrons
• recirculating planar magnetrons
• long anode magnetrons
• optical magnetrons
• THz reverse micro-magnetrons

Acknowledgment

Authors are thankful to the Director, CSIR-CEERI, Pilani for granting permission to publish this paper. We are also thankful to the colleagues of magnetron lab (MWT Division CSIR-CEERI) for their valuable support.