High-Power Tunable Terahertz Radiation by High-Order Harmonic Generation

Author

Gong, Huarong ; Travish, Gil ; Xu, Jin ; Wei, Yanyu ; Feng, Jinjun ; Gong, Yubin

Author_Institution

Nat. Defense Key Lab. of Technol. for High Power Microwave Vacuum Devices, Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

60

Issue

1

fYear

2013

fDate

Jan. 2013

Firstpage

482

Lastpage

486

Abstract

We propose a new type of terahertz (THz) radiation source based on the electron beam-wave interaction. A high-order harmonic-generation process was introduced to a traveling-wave tube (TWT)-like device-the high-harmonic TWT or HHTWT. The scheme is configured as a frequency multiplier and amplifier with W-band (millimeter wave) input signals and THz output power. Simulations show that operation at the seventh harmonic is possible and other order harmonic waves were suppressed. The output frequency can be tuned continuously over a 30-GHz bandwidth with more than 20-dBm output power. The peak output power is about 30 dBm at 707 GHz. The output frequency is insensitive to beam voltage jitter.

Keywords

amplifiers; frequency multipliers; harmonic generation; terahertz waves; travelling wave tubes; HHTWT; THz output power; TWT-like device; W-band input signal; beam voltage jitter; electron beam-wave interaction; frequency 707 GHz; frequency multiplier; harmonic waves; high-harmonic TWT; high-order harmonic generation; high-power tunable terahertz radiation; traveling-wave tube; Educational institutions; Electron beams; Electron tubes; Frequency modulation; Harmonic analysis; Power generation; Folded waveguide (FWG); frequency conversion; millimeter wave; terahertz (THz) wave; traveling-wave tube (TWT);

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/TED.2012.2227751

Filename

6365801