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Higher order mode generation in millimeter wave regime by directly launched fundamental mode
Author(s) -
Choe Mun Seok,
Choi EunMi
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28408
Subject(s) - gyrotron , extremely high frequency , mode (computer interface) , millimeter , amplifier , microwave , generator (circuit theory) , physics , optics , waveguide , launched , terahertz radiation , w band , power (physics) , engineering , electrical engineering , optoelectronics , telecommunications , computer science , cmos , quantum mechanics , operating system
We report on a novel method to generate higher order modes in the frequency range of millimeter and submillimeter wave regime. The method uses magnetic coupling scheme between waveguide fundamental mode and a cavity mode. A TE 62 mode at W‐band was considered for design using the proposed scheme. The suggested method simplifies a mode generator design allowing direct feeding via a standard fundamental waveguide and also provides a compact mode generator to design extremely higher order mode in a cavity. In addition, it opens a new and novel way to develop high power high gain gyrotron amplifiers at millimeter and submillimeter wave regime. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1648–1651, 2014