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In this paper, a WR-2.8 band (220–325 GHz) waveguide bandpass filter is presented, and it is composed of five waveguide resonators. This improved directly coupled resonator filter with asymmetrical inductive windows is realized using H-plane offsets. The Chebyshev response filter has a centre frequency of 300 GHz, a fractional bandwidth of 4.6% and a passband return loss of 20 dB. Through the tolerance...
This paper presents the first experimental results of an extended interaction oscillator (EIO) based on a pseudospark-sourced electron beam, which produced a peak output power over 38 W at $W$ -band. The advantages of the newly developed device are: 1) transport of the electron beam by the positive-ion focusing channel without the need of an external magnetic field and 2) high interaction impedance...
Highly overmoded structures of sheet beam EIK are barriers for the stable operation in RF circuit. In this paper, 3D simulations of an output cavity are presented followed by the calculations of RF parameters and mode competition analysis. Simulation results indicate that potential mode competition is feasible to be alleviated by systematic optimization while meeting the other performance requirements...
This paper deal with a new symmetrical and Decoupled Silicon Micro-Gyroscope (DSMG). By the simplified motion model of the DSMG, the mechanical coupling error from the width errors of suspension beams is analyzed and deduced. The simulation shows that the simulated results of mechanical coupling error basically equal to the calculation results. The characterization test results of the DSMG show that...
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