Control of the gain–frequency response of a vane-loaded gyro-TWT by beam and magnetic field parameters
✍ Scribed by G. Singh; P. V. Bhaskar; S. M. S. Ravi Chandra; P. K. Jain; B. N. Basu
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 205 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Figure 4 Two-layer slab. Dispersion diagrams for the first seven w Ž0. Ž d 1 . Ž d 2 . leaky modes ⑀ s 7, ⑀ s 5, ⑀ s 2, s 1, a s 0.1, d s r r r r 1 Ž . Ž .x d s 0.5d in Eqs. 26 ᎐ 29 2
and the convergence and accuracy features were found to be essentially the same.
V. CONCLUSIONS
A simple algorithm that allows an inexpensive and accurate computation of leaky-wave poles for grounded inhomogeneous dielectric slabs has been presented. The proposed method relies on a rigorous derivation of the relevant TREs, which are solved using an efficient Pade-approximant-based ŕoot-finding procedure in the complex plane. Numerical simulations, involving single-and two-layer profiles, show that the proposed method is attractive in terms of accuracy, computational budget, and implementation ease. Worthwhile extensions, presently under investigation, in-Ž . volve bi anisotropic layers and cylindrical geometries.