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The analytical expressions of the beam-wave coupling coefficients, the beam-loaded conductance and bunching current in the multi-gap coupled cavity are derived based on space-charge wave theory. Through calculating those expressions in a Ka-band three-gap coupled cavity for modes 2π, π and π/2 respectively, the mechanism of the beam-wave synchronization and coupling in the three-gap coupled cavity...
Based on space-charge wave theory, the analytical expression of the beam-wave maximum bunching current in the multi-gap coupled cavity is derived. Through calculating maximum bunching current with different gap number and perveance for 2π mode, the bunching efficiency in the multi-gap coupled cavity is discussed.
In this paper, ultra-wideband technology and the wireless sensor networks are introduce for the purpose of forest fire early warning system. The system is the basis of information disposal, sensing and wireless communication technique. The system includes the following aspect: the integration of wireless temperature sensor, the integration of wireless humidity sensor, the corresponding network topology,...
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