Characteristics Of Photonic Crystal Resonator

A photonic crystal is an artificial structure which has a periodic arrangement of dielectric or metallic materials. In the past decade, it has become a new fast-developing research field due to its unique properties and many potential applications.This paper introduces the PBG structure for the application in gyrotron resonators of microwave device. According to the resonance condition for the excitation, the static axial magnetic field has inverse proportion of the cyclotron harmonic number. The static axial magnetic field will much be reduced, if operation frequency is in the harmonic state. So harmonic wave interaction researches become more and more very important, with the development of gyrotrons. There are several disadvantage by the above merit, with the cyclotron harmonic number: The interaction effect falls much. The bandwidth becomes small, which needs modify the parameters continually. Mode competition upgrades. Special structure shall be promote to solve these problem, while PBG can meet those needs.This paper discusses two kind geometry structure of medium pbg triangle lattice and square lattice using the plane-wave method. I simulate the global pbg gap using Matlab and get the corresponding maps. There is a or several gaps in these maps. Thinking that whose astringency is comparatively bad to using plane-wave to calculate the photon crystal , I use the transmission-matrix method to calculate metal pbg in a triangle lattice and in a square lattice and get get the corresponding maps. This paper compares the difference of triangle lattice and square lattice and the difference of the mode of TE and TM. Choosing a suitable location of band gap help me to design pbg resonator and verify the result using HFSS. Using HFSS simulates the pbg resonator for accelerator applications in the TE010 mode at 17GHz and the pbg resonator for Gyroklystrons in the TE040 mode at 140GHz and the pbg resonator for Gyroklystrons in the TE040 mode at 94GHz. Non-work mode is confined, and more single work mode is got, so the better result is got for application in HPM. Finally I first use the structure to design annular multi-conductors pbg and analyze the character of Annular Multi-Conductors pbg using FDTD. Using HFSS I simulates the pbg resonator in the TE050 mode at 94GHz. Although not almost energy can be kept perfectly in the operation frequency, non-work mode is confined like the above result.