학술논문

Oversized $Ka$-Band Traveling-Wave Window for a High-Power Transmission
Document Type
Periodical
Source
IEEE Transactions on Microwave Theory and Techniques IEEE Trans. Microwave Theory Techn. Microwave Theory and Techniques, IEEE Transactions on. 54(12):4130-4135 Dec, 2006
Subject
Fields, Waves and Electromagnetics
Radio frequency
Ceramics
Pulse amplifiers
Dielectrics
Electric breakdown
Pulse compression methods
Testing
Plasma accelerators
Physics
Permittivity
Accelerator RF systems
breakdown
electromagnetic coupling
resonators
traveling-wave (TW) devices
Language
ISSN
0018-9480
1557-9670
Abstract
A new millimeter-wave barrier window in an oversized metallic circular waveguide has been developed for high-power transmission. The novel design utilizes the traveling-wave regime in an oversized profiled guide and synthesized ${\rm TE}_{0{ n}}$ mode mixing to minimize field intensity at the alumina ceramics surface. Proper choice of ceramics thickness provides necessary broadening of the operation frequency band. Low-power measurements show a reflection level below $-$25 dB at the operating frequency band of 34.272 $\pm$ 0.06 GHz.