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A compact broadband high-power limiter is proposed in this paper. The limiter has a two stages structure which composed of different PIN diodes. A broadband LC impedance transformation network is employed in limiter to replace traditional quarter-wavelength line. This limiter has smaller size and higher isolation compared with traditional one in low frequency. To verify proposed structure, a limiter...
An improved stepped impedance resonator (SIR) is proposed in this paper. Due to this improved resonator, mixed coupling is obtained in filter design. Additional transmission zero is achieved base on new added coupling path. The proposed resonator was adopted to instead one resonator in conventional fourth-order cross-coupled filter. Base on proposed filter topology, a four-pole bandpass filter both...
An analysis of a two-section folded waveguide TWT for terahertz radiation is performed. The theory of high frequency characteristics including the dispersion properties and the beam-wave interaction impedance of this structure are analyzed for nonlinear interaction analysis. A THz-band folded waveguide TWT using 10.8kV, 50mA electron beam is designed and the nonlinear beam-wave interaction in the...
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