Title :
Design of a TM01-TE01 transmission line for high-power microwave applications
Author :
Yuan, Cheng-wei ; Zhang, Qiang
Author_Institution :
Coll. of Optoelectric Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
In this paper, we report the design methods and numerical results for a kind of high-power microwave (HPM) circular waveguide transmission line, which has a 90-degree bend to change the wave propagating direction for certain purposes, and meanwhile, also acts as a TM01-TE01 converter, transforming the HPM sources generating TM01 mode into the TE01 mode. A type of mode conversion sequences, i.e. TM01-TE11-TM11-TE01, is proposed. In the sequences, a 90-degree-bend circular waveguide TM11-TE01 mode converter is adopted to change the wave propagating direction. Besides, compact, linear TM01-TE11 and TE11-TM11 mode converters are designed to perform the mode conversion from TM01 mode to TM11 mode. The transmission efficiency of the designed transmission line is 97.9% at 3.5 GHz, and the bandwidth for efficiency>;90% is 5.3%.
Keywords :
circular waveguides; convertors; electromagnetic wave propagation; high-frequency transmission lines; 90-degree-bend circular waveguide TM01-TE01 converter; HPM circular waveguide transmission line; TM01-TE01 transmission line design; TM01-TE11-TM11-TE01; high-power microwave applications; mode conversion sequences; transmission efficiency; wave propagating direction; Bandwidth; Frequency conversion; Medical services; Power transmission lines; Radio access networks;
Conference_Titel :
High Power Particle Beams (BEAMS), 2008 17th International Conference on
Conference_Location :
Xian
