Abstract In the current work we have investigated the symmetrical microstrip antennas and their bandwidth using 3D reflector plates. We have deployed the WIPL-D software and measured the microstrip dipole. The new models which we presented have new symmetrical microstrip dipoles of varied shapes and have pentagonal dipole.... In the current work we have investigated the symmetrical microstrip antennas and their bandwidth using 3D reflector plates. We have deployed the WIPL-D software and measured the microstrip dipole. The new models which we presented have new symmetrical microstrip dipoles of varied shapes and have pentagonal dipole. Read More Read Less

Abstract We in this paper have introduced the harmonic load models of a few electric non-linear voltage devices. The papers that have addressed the load models of the individual low voltage electric devices. This kind of studies differ from the other references and based on aggregate models. Besides, we have described the merits and demerits of the new models, the applications... We in this paper have introduced the harmonic load models of a few electric non-linear voltage devices. The papers that have addressed the load models of the individual low voltage electric devices. This kind of studies differ from the other references and based on aggregate models. Besides, we have described the merits and demerits of the new models, the applications and the future possible applications. Read More Read Less

Abstract Refractory materials are used to study the progress of the vacuum interrupters. The alloys are capable of passing currents and chopping currents and are transient over voltages. The normal designing switchers are using the same classical steps of a toggle ways. Using the application of medium voltage switching techniques we have presented the sequence of the switching process time for... Refractory materials are used to study the progress of the vacuum interrupters. The alloys are capable of passing currents and chopping currents and are transient over voltages. The normal designing switchers are using the same classical steps of a toggle ways. Using the application of medium voltage switching techniques we have presented the sequence of the switching process time for a static switching process. These are applied for power electronics which are designed for RF systems and protect the circuit applications. Read More Read Less