Guided-Wave Properties of Mode-Selective Transmission Line

ELECTRONICS AND COMMUNICATION ENGINEERING

The questionable mode-selective cable or just ‘‘MSTL’’ is studied on paper and by experimentation. This low-loss and low-dispersion cable operates with a frequency-dependent mode-switching behavior. This self-adaptive mode-selective guided-wave structure begins with the propagation of magnetic attraction waves over the lower frequency place the shape of a quasi-TEM elementary mode just like the microstrip line case, then followed by a elementary quasi-TE10 mode with relation to rectangular wave guide over the upper frequency region. to achieve insight into the physical mechanism and elementary choices of this mode-selective cable, an in depth semi-analytical hybrid-mode analysis is developed through the appliance of a method of lines. This methodology permits correct and effective modeling of MSTL guided-wave properties. Propagation characteristics of this planned mode-agile structure in terms of dispersion, modal, and loss properties square measure examined, that ends up in the institution of some basic MSTL style tips. Numerical results make sure the expected mode conversion and low-loss behavior through the observation of field evolutions on the structure. For experimental verification, a collection of MSTL prototypes square measure fancied on 2 totally different substrates through dissimilar fabrication processes. Measurements square measure disbursed from dc-to-500 GHz employing a vector network instrument. glorious agreement between theoretical and experimental results is ascertained. it's confirmed that the low-dispersion and low loss behavior of MSTL makes it an impressive integrated wave guide in support of superior super broad band signal transmission and/or ultra-fast pulse propagation in a very fully-integrated platform.

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