Crossed-field Microwave Device. Principal Types of by G. Mourier

By G. Mourier

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Extra resources for Crossed-field Microwave Device. Principal Types of Crossed-Field Devices Analysis of Oscillator system Performances Regional Progress and Trends

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T h e comparison of (44) a n d (41) involves Vg = V e. VII. The Reactance Theorem and Dispersion I n some cases, a delay structure c a n b e considered as a filter consisting of pure reactances, generally n o t lumped. T h e n , i t m a y b e useful t o know how such reactances v a r y with frequency a n d h o w their variations a c t on t h e dispersion curve of t h e delay structure. Let u s consider a t first a loss-less cavity connected t o a coaxial line so t h a t a reactance X can b e defined a t a given frequency ω/27τ.

Let us call yffi the capacity between t h e bar r of t h e cell (0, 0) and t h e bar R of t h e cell (I, m); we observe t h a t 7& = W) 7&- m) (7) 2 Then, we define N characteristic a d m i t t a n c e s (3) b y YrB = c Σ 7ÄS* exp [-j(i

VII. VIII. Fundamental Consideration about Delay Lines Floquet's Theorem Orthonormality Properties of the Modes Equality of the Magnetic and Electric Energies Stored in a Cell Space Harmonics Group Velocity and Energy Velocity The Reactance Theorem and Dispersion Perturbations by a Current—General Cases A. The Alternating Current of the Beam B. The Current Layer Equivalent to Another Delay Structure C. Perturbation by a Dielectric D . Induced Current in a Real Conductive Layer E. The Current Layer Equivalent to Plane Waves Propagating on Two Parallel Biperiodic Structures IX.

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