期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2014
卷号：3
期号：12
页码：4216-4220
出版社：Shri Pannalal Research Institute of Technolgy
摘要：Advances in microwave solid state devices have simulated interest in the integration of the microwave circuits. Microstrip lines are being considered as viable candidates for microwave communication and other applications. Microstrip due to its various design advantages is particularly very attractive. This creates the need for accurate modeling and simulation of microstrip transmission lines. Virtually all practical distributed circuits must contain discontinuities as straight uninterrupted lines would be of little engineering use. Microstrip discontinuities such as crossings, T-junctions, bends and impedance steps are elements of many complex microstrip circuits like filters, power dividers, ring couplers, and impedance transformers. Therefore knowledge of exact reflection and transmission properties in dependence on frequency is of great importance. A simulation model is presented here for analyzing the T-junctions in microstrip lines through Sonnet Software at low frequencies (below 10 GHz). The parameters of microstrip lines are determined from the empirical formulae which are based on full wave analysis. The simulation work has been performed on Alumina substrate. The T-junctions are simulated and S-parameters hence calculated show the transmission properties of the discontinuity and their frequency dependency. The T-junction is also compensated to get better transmission properties, and optimized which gives important results for designing desired frequency microwave circuits.
关键词：Full wave analysis; Microstrip line; ; Microstrip discontinuities; T-junctions; Steps in width; Sonnet ; Software; Substrate permittivity and S-parameters.
