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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Abe, D.K. Levush, B. Nguyen, K.T. Pershing, D.E. Wood, F.N. Myers, R.E. Eisen, E.L. |
| Copyright Year | 2007 |
| Description | Author affiliation: Naval Res. Lab. Vacuum Electron. Branch, Washington (Abe, D.K.; Levush, B.) |
| Abstract | We describe the design and characterization of a broadband eight-beam, fundamental-mode multiple-beam klystron (MBK), and present preliminary experimental hot-test results. The MBK is designed to have a 3-dB instantaneous bandwidth of-6% with a center frequency of ~3.2 GHz and uses an existing eight-beam electron gun that operates at a nominal cathode voltage of 45 kV and a total current of 32 A1. The electrodynamic circuit is comprised of a two-gap input cavity, three idler cavities (the first of which is a two-gap cavity), and a two-gap output cavity". The total length of the electrodynamic circuit is ~22 cm. All of the multi-gap cavities are designed to operate in the pi-mode. The individual cavity-designs were optimized with the aid of 3D electromagnetic modeling tools and the designs and final fabricated hardware were validated with extensive cold-testing. We will present comparisons of the measured cavitv parameters (frequency, Q, R/0) with 3D electromagnetic simulations. The predicted peak output power over the band is about 600 kW with a corresponding efficiency of 42% and a gain of ~33 dB. The predicted 1-dB and 3-dB instantaneous band-widths of the device are 5.2% and 6.7%, respectively. The MBK is being fabricated by CPI and is expected to be delivered to NRL in early 2007. We will present preliminary experimental results with this device. |
| Starting Page | 665 |
| Ending Page | 665 |
| File Size | 47827 |
| Page Count | 1 |
| File Format | |
| ISBN | 9781424409150 |
| ISSN | 07309244 |
| DOI | 10.1109/PPPS.2007.4345971 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-06-17 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Bandwidth Klystrons Frequency Electrodynamics Circuits Electrons Cathodes Voltage Design optimization Electromagnetic modeling |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering |
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