Modern microwave and millimeter wave phased array antennas are attractive because of their ability to steer wave beams in space without physically moving the antenna element. A typical phased array antenna may have several thousand elements fed by a phase shifter for every antenna, which can steer the resulting array beam to different directions. Their low loss, low cost and lightweight phase s...

This paper proposes a method for extending the ability of rotary power flow controller (RPFC) using tap-changer of the RPFC’s transformers. A detailed model of the device is presented to analyze the effects of the tap changer operation on the performance of the RPFC. To evaluate the results, the RPFC model is simulated using PSCAD/EMTDC software. Dynamic operation of the RPFC on a 400 kV transm...

This article is aimed at modeling of transmission line inspection robot in order to improve the mechanical mechanism and achieving dynamical stability to navigate through overhead electrical transmission lines while passing obstacles. A new mechanical mechanism design is developed that allows robot navigate more stable than current commercial inspection systems. The behavior of investigation ma...

Transmission line pulse (TLP) measurements are used to demonstrate that oxynitride breakdown projections from DC measurements using conventional area and voltage-scaling techniques can be extended to the nanosecond timescale. ESD protection systems can thus be designed to prevent dielectric breakdown. Important concepts in gate dielectric breakdown such as the anode–hole injection model and are...

The single flux quantum (SFQ) logic family is a novel digital as it provides ultrafast and energy-efficient circuits. For large-scale SFQ circuit design, specialized electronic design automation (EDA) tools are required due to the differences in type, timing constraints, architecture, contrast Complementary metal–oxide–semiconductor (CMOS) logic. In order improve overall performance of an circu...

Dual scattering channel (DSC) schemes generalize Johns’ TLM algorithm in replacing transmission lines with abstract scattering channels in terms of paired distributions. A well known merit of TLM schemes is unconditional stability, a property generally drawn upon passivity of linear transmission line networks. So the question arises, if DSC algorithms remain stable in a neat sense. It is shown ...

We use an averaging method to study the dynamics of a transmission line studded by Josephson junctions. The averaged system is used as a springboard for studying experimental strategies which rely on spatial non-uniformity to achieve enhanced synchronization. A reduced model for the near resonant case elucidates in physical terms the key to achieving stable synchronized dynamics. © 2004 Elsevie...

Due to limitations of 0.618 pole method, the triangle method and the champ ground resistance tester method on grounding resistance measurement of transmission lines and towers under conditions of complex landscape in a mountainous area, it adopts a generalized three-electrode grounding resistance measurement method which arranges electrode flexibly in the grounding resistance measurement of tra...