Depending on the location of communication nodes control points and relay in field, especially mountainous areas, finding line sight (LOS) establishing a good radio connection can be challenging. In addition, depending requirements for bandwidth stability, situation often arises where it is possible to build network only based certain types topologies. To assess security military field telecomm...

A design method for an L-band frequency quadrupler with composite right/left-handed transmission line is proposed. The left-handed transmission line in the proposed frequency quadrupler suppresses the fundamental component ( f0), while the composite right/left-handed l/4 open stub reduces unwanted higher-order harmonics. From the experimental results, unwanted harmonics are suppressed to achiev...

This paper develops a new PLC model and investigates the impact of the load, line length, and diameter of the transmission line on the channel transfer function over the frequency range of 120 MHz. The results show that with 42 degrees of freedom, the proposed model leads to an average RMSE value of approximately 5.2 dB. With the same conditions, the Phillips model leads to an average RMSE valu...

Distributed Power Flow Controller is a new device within the family of FACTS. The DPFC has the same control capability as the UPFC, but with much lower cost and higher reliability. This paper addresses one of the applications of the DPFC namely compensation of unbalanced currents in transmission systems. Since the series converters of the DPFC are single phase, the DPFC can compensate both acti...

But first concerning controversies there is also a controversy concerning the use or non-use of baluns, and which balun to use. Since many antenna types are balanced, and present day HFTPA’s are unbalanced, and, since the preferred method of feeding antennas is to use coaxial cable, rather than 2-conductor balanced transmission line, a balun should, often must be used in the overall antenna sys...

AC transmission system is major part which links the generation and distribution.The transmission system is subjected to stability problems,which occurs due to abnormal conditions like faults,over voltages.These limit the transmission capability.Power systems often suffer from weakly damped swings between synchronous generators. The main objective of this paper is to enhance the transient stabi...

In this paper, the design of three stage hybrid architecture for controlling and preventing certain disturbances caused in transmission lines is studied. The transmission lines of modern power systems are equipped with WSN (Wireless Sensor Network). Since WSNs are capable of cost efficient monitoring over a wide range of geographical areas. Consequently monitoring of mechanical parameters of tr...

In Part I of this work, analysis of uniform multi-conductor transmission line networks is performed on travelling-wave basis, via “quasi-TEM” approach. Narrowband interpretation of the modal theory in the time domain and quantification of the multiple reflections effect are both included. Theoretical demonstration and analytical formulation are provided, along with guidelines towards computatio...

In Part I of this work, travelling-wave modelling of uniform multi-conductor transmission line networks was analytically established with direct applicability to narrowband transmission, covering any network formed of lossy (in the general case), diagonalisable uniform multi-conductor transmission lines of either distinct or degenerate eigenvalues. As the whole work applies especially in the fi...