this paper proposes an optimal transmission expansion planning (tep) which is based on determining share of each line in merchandizing surplus (ms) of system, determining by independent system operator (iso). the more share of a line in ms of system denotes the priority of a line for expansion. the procedure of determining ms of each line in a power system is based on determining the ms share o...

I discuss the strong link between transmission line (TL) equation and TL circuit model for charging of an electrolyte-filled pore finite length. In particular, show how Robin Neumann boundary conditions to equation, proposed by others on physical grounds, also emerge in subject a stepwise potential. The relaxes with timescale $\ensuremath{\tau}$, expression which consistently follows from circu...

A novel resonator using a composite right/left-handed (CRLH) transmission line (TL) is presented and its extraordinary resonant characteristics with an infinite-wavelength wave are discussed. The resonance corresponds to the zeroth-order on the analogy of the conventional mode numbering. The zeroth-order resonant characteristics and loss mechanism are fully described by the circuit theory and i...

A novel compact ultra wideband (UWB) bandpass filter (BPF) based on composite right/left handed transmission line (CRLH TL) is reported in this paper. The proposed UWB BPF is designed and developed by coupling of two unit-cells of via-less CRLH TL, excited by asymmetrical coplanar waveguide (CPW) feed-line. The unit cell of CRLH TL is designed using series interdigital capacitor (IDC) in shunt ...

A nonlinear transmission line (NLTL) is used to speed up the risetime of high voltage (> 1 kV) pulses. The theory of the NL TL is reviewed and practical implementations and limitations are discussed. An NLTL is used to generate a 1.5 kV pulse with a risetime of 500 ps. The note concludes with a discussion of generating pulses with amplitudes greater than 3.5 kV and risetimes less than 200 ps.

This paper presents construction of a composite right/left-handed (CRLH) transmission line (TL) based bandpass filter using microstrip parallel coupled lines and hairpin lines. For getting high coupling in comparison to conventional edge coupled microstrip line, the floating slot on the ground plane is used. Two configuration named as SOS (short-open-short) the OSO (open-short-open) model are s...

Composite transmission lines are one of the main developments in the increasingly popular field of electromagnetic metamaterials, artificial electromagnetic structures with both negative electric permittivity and magnetic permeability (Caloz & Itoh, 2005). These structures present a backward wave or left-handed (LH) propagation instead of the conventional right-handed one. The first experimenta...

A leaky wave antenna (LWA) using composite right/left-handed (CRLH) transmission line (TL) composed of ladder network has been investigated [1]. The effect of transmission line length and height on the gain and bandwidth is clarified in [1]. In order to increase the gain of the LWA, mushroom-shaped unit cell has been investigated in [2]. Chip capacitance is used for series capacitance. The band...

In this review article, different structures of monopole antennas based on metamaterial concepts which have been developed for various wireless applications are presented. The antennas designed for wireless applications must be broad band, low profile, small size and have better performance. Monopole antennas embedded with Artificial magnetic conductors (AMC), Electromagnetic band gap structure...