Yalda Torabi

Yalda Torabi
Iran University of Science and Technology

Doctor of Engineering

About

16
Publications
1,864
Reads
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67
Citations
Citations since 2016
13 Research Items
67 Citations
201620172018201920202021202205101520
201620172018201920202021202205101520
201620172018201920202021202205101520
201620172018201920202021202205101520
Introduction
postdoctoral researcher(Iran University of Science and Technology)

Publications

Publications (16)
Article
A low-profile THz leaky-wave antenna (LWA) enabled by a Dielectric Image-Line (DIL) with wide beam steering capability is reported for the first time in this paper. The DIL as a low-loss dielectric waveguide synthesized directly on a substrate with high dielectric permittivity is an appropriate candidate for emerging directive compact antennas for...
Article
This paper presents a terahertz beamforming network based on a nonlocal lens with a 2D beam-scanning demonstration through leaky-wave antennas. The proposed design methodology is novel, to the best of our knowledge, in the aspect of using unconventional optimization parameters to significantly reduce the phase error associated with this class of be...
Article
Full-text available
This paper presents a new layered dielectric leaky-wave antenna (LWA) for the sub-terahertz (THz) frequency range capable of efficient operation at the broadside with a wide beam scanning angle and stable gain. It consists of a conductor-backed alumina dielectric image line (DIL) with two different dielectric layers mounted on top of each other for...
Article
In this paper, a closed-form design method for a novel compact unequal filtering Wilkinson power divider, WPD, based on symmetric and asymmetric right/left-handed (CRLH) coupled-line circuit structures is proposed and investigated. The structure is composed of an input asymmetric CRLH coupled-line (A-CRLH) section along with two output symmetric CR...
Article
Full-text available
A new systematic macro‐modelling technique for transient analysis of finite multi‐conductor transmission line metamaterials (MTL‐MMs) based on a Dyadic discrete Green's function (DGF) approach is proposed. Governing discrete voltage‐based equations for one‐ and two‐dimensional (1‐D and 2‐D) MTL‐MMs are derived using a rigorous MTL analysis. Applyin...
Article
A novel theoretical model based on equivalent source method and modal superposition technique is proposed to derive a dyadic Green's function for two-dimensional (2-D) finite periodically loaded multiconductor transmission lines (MTLs) to efficiently analyze electromagnetic band gap (EBG) structures embedded in power distribution networks (PDNs) fo...
Article
Full-text available
In this paper, two element multiple input–multiple output (MIMO) meander line antenna systems with improved isolation performance and compact size are proposed and fabricated in WLAN frequency band. To increase isolation among antenna elements, a novel metamaterial spiral S-shaped resonator is embedded between two radiating elements. The proposed r...
Article
A novel asymmetric composite right/left-handed (A-CRLH) coupled-line circuit structure for a miniaturized unequal Wilkinson power divider (WPD) with arbitrary large power division ratio and reduced arm's length is proposed. Compared with the traditional unequal WPD, using the A-CRLH coupled-line section in the proposed power divider, due to its con...
Article
Full-text available
In this paper, a novel application of complementary electric-LC (CELC) resonator as a basic element to synthesize miniaturized sharp band-pass filters is introduced. The proposed metamaterial band-pass filter is a three-stage CELC-based device, where two shunt short-circuited stubs are employed in the input and output stages and a series gap is etc...
Article
Full-text available
Novel synthesis procedure, exploiting data mining technique for antenna design is presented. By utilizing data mining, investigating various combinations of a typical antenna configuration, all together, is feasible and this fact allows the selection of the specific design which possesses the desired properties. In this paper, a broad-band and wide...
Article
This paper presents a novel wide-scan phased array antenna based on metamaterial (MTM) electrical LC (ELC) slot and L-probe fed cavity-backed patch antenna element in X-band. The antenna uses the ELC-slot as the main radiating element and a meta-tool to reduce mutual coupling between array elements by eliminating horizontal far-field radiation. App...
Article
A wideband wide scan phased array antenna unit cell based on vector antennas operable to radiate different patterns is provided. The proposed unit cell consists of four radiating elements. When one of the elements is radiating in the presence of the other element, a null is generated in a radiation pattern of the first radiating element and also th...
Article
A two-element multiple input–multiple output (MIMO) compact meander-line antenna with enhanced isolation performance using a novel metamaterial Labyrinth split-ring resonator (LSRR) is proposed. The reduction of mutual coupling between two antenna elements is obtained by embedding the proposed resonator between two radiating elements and achieving...
Article
In this article, we introduce a new metamaterial complementary electric LC resonator (CELC) and investigate its operational mechanism, characteristics, and potentialities for application in microwave components and devices, such as filters. We consider the excitation of CELC by the electric and magnetic fields of microstrip lines and its resonance...

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