شماره ركورد كنفرانس :
3926
عنوان مقاله :
Analytical Calculation of the Resonant Frequencies for a Corner Cut Square SIW Cavity
پديدآورندگان :
Rezaee Morteza morteza.rezaee@stu-mail.um.ac.ir Department of Electrical Engineering Ferdowsi University of Mashhad Mashhad, Iran , Attari Amir Reza attari50@um.ac.ir Department of Electrical Engineering Ferdowsi University of Mashhad Mashhad, Iran
كليدواژه :
mode matching technique , perturbation theory , resonant frequency , SIW cavity
عنوان كنفرانس :
بيست و چهارمين كنفرانس مهندسي برق ايران
چكيده فارسي :
In this paper, the resonant frequencies of a dual mode square SIW cavity with a corner cut perturbation are calculated, analytically. Since introducing the perturbation makes small changes in the field pattern of this cavity, the perturbation theory can be used to calculate the resonant frequencies. Using this theory, the first degenerate modes of the dual mode cavity are calculated, approximately. Also, the mode matching technique is used to calculate these resonant frequencies as the eigenvalues of the structure. The analytically obtained results are verified by comparison with full wave simulation results. For the perturbation size less than the third of diameter of the square cavity, the error between resonant frequencies obtained by perturbation theory and HFSS is less than 1%. The mode matching results are also in a good agreement with full wave simulation results.