Accession Number:

ADA528074

Title:

Research on Novel High-Power Microwave/Millimeter Wave Sources and Applications

Descriptive Note:

Final rept. 1 Jun 2009-31 May 2010

Corporate Author:

NATIONAL TSING HUA UNIV HSINCHU (TAIWAN)

Personal Author(s):

Report Date:

2010-08-28

Pagination or Media Count:

29.0

Abstract:

In this project, theoretical support was provided for the experiments at UC Davis aimed at the development of a zero-drive stable W-band gyrotron traveling-wave amplifier Gyro-TWT. The first of these tasks is the development of a fully relativistic theory for the interpretation of the test results of the most critical component of this gyro-TWT namely, a new type of electron gun based on the robust, long-lived, clean, low work function, high current density thermionic cathodes recently developed at UC Davis under the sponsorship of MURI-04. This is an electron gun to be used for the zero-drive stable Gyro-TWT. The second task was to design a novel W-band gyro-TWT, to yield over 100 kW with 5 bandwidth and 70 dB gain. The bandwidth is sufficiently wide for the generation of appropriately chirped pulses with pulse compression. Hence, it is suited for the ongoing upgrading of high-resolution space radars operated by Lincoln Laboratory, for which an array of 1-bandwidth sources is being planned due to the lack of a broadband source.

Subject Categories:

  • Electrical and Electronic Equipment
  • Electricity and Magnetism
  • Radiofrequency Wave Propagation
  • Electromagnetic Pulses

Distribution Statement:

APPROVED FOR PUBLIC RELEASE