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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Wenqiu Xie Zi-Cheng Wang Jirun Luo Qinglun Liu |
| Copyright Year | 1963 |
| Abstract | A theoretical model for the arbitrarily shaped groove staggered double grating array waveguide (SDGAW) slow-wave structure is proposed in this paper. The boundary of the groove was approximately replaced by a series of steps and the formulas of dispersion and interaction impedance were obtained utilizing the field matching method combined with the continuity of transverse admittance. Considering the traditional single mode approximation (SMA) model is not so accurate for describing the high frequency (HF) characteristics, a multiple modes approximation (MMA) model is established, which takes account for the higher order terms in the grooves, thus greatly improves the accuracy of the numerical calculations. As an example, the HF characteristics of a cosine groove SDGAW for a 0.22-THz traveling wave tube were calculated utilizing the SMA model, the MMA model, and HFSS code, the results were compared and discussed. Comparison of the HF characteristics among several kinds of groove shaped SDGAWs has been made by numerical calculation. |
| Sponsorship | IEEE Electron Devices Society |
| Starting Page | 1707 |
| Ending Page | 1714 |
| Page Count | 8 |
| File Size | 1202623 |
| File Format | |
| ISSN | 00189383 |
| Volume Number | 61 |
| Issue Number | 6 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Mathematical model Arrayed waveguide gratings Dispersion Equations Hafnium Harmonic analysis Approximation methods terahertz wave. field matching method interaction impedance staggered double grating array waveguide (SDGAW) terahertz wave |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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