A PCB transmission line comprises at least two conductors – one for the signal and another for its return path. Complex circuit board nets are the combinations of such simpler transmission line structures. Understanding these structures (microstrip, stripline, and coplanar) can be fruitful from the...
This chapter considers dielectric and metallic losses of transverse electromagnetic (TEM) transmission lines. The author says that the losses are so slight that the waves are not modified; this means that the waves are still TEM and the chapter uses his TEM expressions. The small metallic losses...
A software method is disclosed for modeling dielectric losses in transmission lines, such as lines on a computer chip or circuit board, using a circuit simulation application, such as a SPICE program. Line resistance, self-inductance, and self-capacitance are calculated and modeled as a lumped ...
Free Space Tem Transmission Lines Radiation Losses Model There are three kind of losses in transmission lines: ohmic, dielectric and radiation losses. While the first two are local phenomena which are easy to model, the radiation losses lack a simple model. This work analyzes the radiation los....
Mode conversion in miter bends and polarizers is the main contributor of loss in the transmission lines (TLs) for the ITER 170 GHz ECH system, which should transport one megawatt of power with the smallest possible loss. Previous loss estimates assumed that the power in the TL was carried by...
M.O.Oke, O.M.Bamigbola, "Minimization of losses on electric power transmission lines", Mathematical Theory and Modeling, Vol.3, No.7, 2013, pp.28-31.M. OKE & O.M. Bamigbola, "Minimization of Losses on Electric Power Transmission Lines", Mathematical Theory and Modeling, Vol.3, No...
The purpose of this paper is to show all stakeholders in transmission lines that surge arresters are economically viable as an alternative to overhead ground wires for effective lightning protection. Arresters installed on every phase of every tower cost less than the extra material and installation ...
It has recently been discovered that it is possible to reduce skin effect losses in transmission Iines by properly laminating the conductors and adjusting the velocity of transmission of the waves. The theory for such laminated transmission lines is presented in the case of planar systems for both...
The first assumption restricts the validity of the equations for the current to below 100 MHz ( lambda =3 m) for typical transmission lines and the second assumption can be met for most practical air-Earth problems. Numerical results for transmission line loss are computed using both the ...
We have developed a calorimeter with a sensitivity of better than 1 mW/m for measuring AC losses in HTS multi-strand conductors for superconducting power transmission lines over a temperature range of 64 K to 80 K. By choosing a temperature difference technique we eliminate the need for correcti...