Jiayin Li

TL;DR: In this paper, a two and one half dimensional particle-in-cell code MAGIC has been used to investigate the nonlinear beam-wave interaction in a coaxial relativistic backward wave oscillator (RBWO) and optimize the dependence of the output power on electron beam nature parameter, slow wave structure geometry and magnetic guide field.

TL;DR: In this article, a high-power x-band coaxial relativistic backward wave oscillator has been conceptually designed and analyzed, and the TMon dispersion relations in the coaxial corrugated cylindrical waveguide used in the device was calculated.

TL;DR: In this paper, an electromagnetic particle-in-cell code has been used to simulate the nonlinear beam wave interaction and other optimization issues of a X-band RBWO with variable couple impedance, the simulation results show: the device can high-efficiently generate microwave radiation of 950MW peak power at (9.06±O).

TL;DR: In this article, a numerical method based on the coupling of the finite difference method in time domain with the discrete Fourier transform is applied to calculate the eigenfrequencies and eigenfield distribution of a resonant cavity which is an appropriately shorted periodic slow wave circuit of N periods at both ends.

TL;DR: In this paper, an injection-locked oscillator (ILO) operating in the 58GHz ISM band is developed to demonstrate the approach using hybrid integrated microwave circuit technique, which showed the free-running performance with an output power of 267dBm at 58GHz, DC-to-RF efficiency of 266% and phase noise of -1168dBc/Hz at 100kHz offset under dc bias of 1881V and 369mA under the locked state by a 58GHz injection signal of -25dBm.