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We present a novel double V-shaped winding microstrip meander-line slow-wave structure (SWS) for traveling-wave tubes (TWTs) in this paper. The proposed structure evolves from a V-shaped winding microstrip meander-line. The radio-frequency characteristics of the above-mentioned structures are calculated. Numerical results from high frequency characteristics calculation are given and analyzed. It has...
A new approach for low gain fluctuation based on small-signal gain analysis of wide-band traveling wave tubes (TWTs) is proposed in this paper. For the known simulated dispersion characteristics of slow wave structure (SWS), the relation between interaction impedance and frequency is obtained by setting zero to the first derivative of gain with respect to frequency. We can confirm whether a SWS reaches...
V-band TWT prevails nowadays as amplifier device for the satellite communication and electronic countermeasures. The folded waveguide (FW) is a promising slow-wave structure (SWS) for V-band TWT with advantages of high power and considerable bandwidth. A FW TWT working in V band with 5GHz bandwidth is designed and then a prototype tube is successfully made and tested. The measured output power of...
A folded-waveguide (FW) traveling-wave tube (TWT) with two electron beams, which operates at the higher order mode, is simulated. Operating with two electron beams means that a larger beam current can be used for a higher output power. Meanwhile, the electric field density of the fundamental mode is not the strongest at the center of the beam channel, so the competition of the fundamental mode is...
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