Showing papers in "Electromagnetics in 2019"
TL;DR: In this article, the design process of a new compact microstrip Gysel power divider with harmonics elimination is proposed, and two types of resonators are applied to mak...
Abstract: In this paper, design process of a new compact microstrip Gysel power divider (GPD) with harmonics elimination is proposed. In the designed GPD structure, two types of resonators are applied to mak...
35 citations
TL;DR: In this paper, a circularly polarized (CP) 4 × 4 MIMO antenna with low mutual coupling is proposed to operate at 2.4 GHz WLAN band (IEEE 802.11b/g/n/ax) applications.
Abstract: A circularly polarized (CP) 4 × 4 MIMO antenna with low mutual coupling is proposed to operate at 2.4 GHz WLAN band (IEEE 802.11b/g/n/ax) applications. The proposed design consists of four CP penta...
20 citations
TL;DR: In this paper, a probe-fed compact multi-band microstrip patch antenna for wideband operation is presented, which is composed of a shorted circular patch fed by folded-patch with a V-shaped antenna.
Abstract: This paper presents a probe-fed compact multi-band microstrip patch antenna for wideband operation. The proposed antenna is composed of a shorted circular patch fed by folded-patch with a V...
14 citations
TL;DR: In this paper, new designs of the circularly polarized micro-strip antennas (CPMSAs) based on tree fractal geometries are proposed, examined experimentally, and compared.
Abstract: New designs of the circularly polarized micro-strip antennas (CPMSAs) based on tree fractal geometries are proposed, examined experimentally, and compared. The excellent circularly polarize...
11 citations
TL;DR: In this article, a triple band rectenna for Wi-Fi (2.4 GHz), Wi-MAX (3.5 GHz), and WLAN (5.2 GHz) application frequencies is proposed.
Abstract: In this paper, a triple band rectenna for Wi-Fi (2.4 GHz), Wi-MAX (3.5 GHz) and WLAN (5.2 GHz) application frequencies is proposed. The rectenna consists of a square-shaped circularly polarized ant...
9 citations
TL;DR: The proposed tag antenna consists of a modified H-shaped slot structure that ensures considerable robustness from the application environment through confining the surface current density within the antenna structure.
Abstract: RFID tag antennas with stable performance on the diverse electromagnetic mounting platforms are an integral part of the ubiquitous RFID systems. This research article presents a novel tag antenna d...
6 citations
TL;DR: In this article, an improved hybrid scheme combining the method of moment (MoM) and the physical optic (PO) was presented to investigate scattering from multiple 3-D conducting objects above the electr...
Abstract: An improved hybrid scheme combining the method of moment (MoM) and the physical optic (PO) is first presented to investigate scattering from multiple 3-D conducting objects above the electr...
6 citations
TL;DR: In this paper, a semi-analytical method was proposed to calculate the magnetic field and inductances of axisymmetric iron-core coils, and a group of source functions were introduced to simplify the formulas and acceler...
Abstract: A semi-analytical method is proposed to calculate the magnetic field and inductances of axisymmetric iron-core coils. A group of source functions are introduced to simplify the formulas and acceler...
6 citations
TL;DR: Based on the multi-coupled line, a compact microstrip diplexer with high isolation and low insertion loss was developed in this paper, which consists of five short-ended parallel co...
Abstract: Based on the multi-coupled line, a novel compact microstrip diplexer with high isolation and low insertion loss is developed. The presented diplexer consists of five short-ended parallel co...
6 citations
TL;DR: In this article, a compact ultra wideband (UWB) bandpass filter (BPF) consisting of two composite right/left-handed transmission line unit cells and an anti-coupled line struct...
Abstract: This paper presents a novel compact ultra-wideband (UWB) bandpass filter (BPF). It consists of two composite right/left-handed transmission line (CRLH-TL) unit cells and an anti-coupled line struct...
5 citations
TL;DR: In this article, a novel method of frequency and impedance control is presented for multi-antenna systems with a variety of frequencies and environments, which is capable of operating well across a wide range of environments.
Abstract: With space and spectrum at a premium, antennas must be capable of operating well across a variety of frequencies and environments. This work presents a novel method of frequency and impedan...
TL;DR: In this paper, a microstrip diplexer with upper-stopband and high isolation is presented, and a multimode resonator is designed by using stub-loaded circuit, which can be employed as the common resonato.
Abstract: A microstrip diplexer with upper-stopband and high isolation is presented in this paper. A multimode resonator is designed by using stub-loaded circuit, which can be employed as the common resonato...
TL;DR: In this article, a translation of a classic paper of Arnold Sommerfeld published in 1899 is presented, which provided the first rigorous theory of waves traveling on a resistive wire of finite radius.
Abstract: This is a translation of a classic paper of Arnold Sommerfeld published in 1899. It provided the first rigorous theory of waves traveling on a resistive wire of finite radius. General solutions ins...
TL;DR: In this article, a double folded substrate integrated waveguide (FSIW) band pass filter (BPF) based on Koch space-filling curve (SFC) was proposed.
Abstract: This paper proposes the design of a novel double folded substrate integrated waveguide (FSIW) band pass filter (BPF) based on Koch space-filling curve (SFC). The folded SIW filter is incorp...
TL;DR: In this article, a partially reflecting and absorbing metasurface (PRAM) was proposed to reduce the RCS and enhance the gain of the circularly polarized patch antenna.
Abstract: This paper presents a novel partially reflecting and absorbing metasurface (PRAM) in order to reduce Radar Cross Section (RCS) and enhance the gain of the circularly polarized patch antenna. The un...
TL;DR: In this paper, a novel tri-band bandpass filter is presented, which utilizes a second-order embedded resonator to control different parts of the resonator, and the proposed circuit utilizes a two-order resonator.
Abstract: A novel compact tri-band bandpass filter is presented in this article. The proposed circuit utilizes a second-order embedded resonator. By controlling different parts of the embedded resonator, the...
TL;DR: In this paper, a compact reconfigurable bandpass filter with wide tuning range is proposed, which is realized by utilizing two varactor diodes at the end of the band pass filter.
Abstract: A compact reconfigurable bandpass filter with wide tuning range is proposed in this letter. The reconfigurable function is realized by utilizing two varactor diodes at the end of the bandpa...
TL;DR: In this paper, a compact CPW-fed slot antenna is proposed, which has a pentagonal patch nested within an asymmetrical slot along with a coplanar waveguide feed.
Abstract: A compact CPW-fed slot antenna is proposed here. The antenna has a pentagonal patch nested within an asymmetrical slot along with a coplanar waveguide feed. The suggested antenna also has a circula...
TL;DR: In this article, a compact magneto-electric (ME) dipole antenna with broad E-plane beamwidth is proposed for ultra-wideband (UWB) indoor positioning system.
Abstract: In this paper, a novel compact magneto-electric (ME) dipole antenna with broad E-plane beamwidth is proposed for ultra-wideband (UWB) indoor positioning system. The ME dipole antenna is designed to...
TL;DR: In this article, a bi-layered twisted F-shaped chiral metamaterial is proposed to realize efficient cross-polarizer convertor (CPC) design.
Abstract: A bi-layered twisted F-shaped chiral metamaterial is proposed in this work to realize efficient cross-polarizer convertor (CPC) Reported CPC design exhibited high optical activity owing to
TL;DR: In this paper, a hybrid model based on the combination of full-wave simulation method and circuit model analytic algorithm was developed to predict the shielding effectiveness of a perforate perforation.
Abstract: This paper develops a hybrid model based on the combination of full-wave simulation method and circuit model analytic algorithm, which can predict the shielding effectiveness of a perforate...
TL;DR: In this article, the authors present techniques to broaden the magnitude and phase bandwidth of a branch-line balun by converting the 3-port NN into a 2-port nN.
Abstract: This paper presents the techniques to broaden the magnitude and phase bandwidth of a branch-line balun. Explicit equations based on S parameters are derived and presented by converting the 3-port n...
TL;DR: In this article, the internal admittance matrix elements that are needed during the Method of Moments analysis of a longitudinal slot in a rectangular waveguide have been evaluated by considering the slot images in...
Abstract: The internal admittance matrix elements that are needed during the Method of Moments analysis of a longitudinal slot in a rectangular waveguide have been evaluated by considering the slot images in...
TL;DR: A wide-beam linear polarization antenna with circular patch, ring, microstrip line, and electromagnetically coupled patch was used in missile telemetry syst... as mentioned in this paper.
Abstract: A wide-beam linear polarization antenna with circular patch, ring, microstrip line, and electromagnetically coupled patch is presented in this paper. This antenna was used in missile telemetry syst...
TL;DR: In this paper, a novel high-selectivity filtering power divider is presented, which utilizes two fourth-order filters with a surface mount resistor, and is shown to have high selectivity.
Abstract: A novel high-selectivity filtering power divider is presented in this paper. The proposed circuit utilizes two fourth-order filters with a surface mount resistor. The fourth-order filter is...
TL;DR: In this paper, a microstrip antenna with cone pattern, circular polarization, and optimized impedance dimensions and bandwidth is presented, which consists of an antenna radiation plane (patch), two...
Abstract: This paper presents a micro-strip antenna with cone pattern, circular polarization, and optimized impedance dimensions and bandwidth. It consists of an antenna radiation plane (patch), two ...
TL;DR: A novel triple-band microwave chip-less sensor tag for Structural Health Monitoring (SHM) systems that can detect cracks with a resolution of 0.2 mm and shows a RCS resonant frequency shift of at least 21.1 MHz.
Abstract: In this paper, a novel triple-band microwave chip-less sensor tag is presented for Structural Health Monitoring (SHM) systems. Remote sensing capability of microwave devices is employed her...
TL;DR: In this article, the volume equivalence principle is applied to the spectrum scattering of electromagnetic plane waves from normal chiral materials, chiral metamaterials, and chiral nihility materials.
Abstract: Scattering of electromagnetic plane waves from normal chiral materials, chiral metamaterials, chiral nihility materials are presented. Based on the volume equivalence principle, the integral equati...
TL;DR: An improved whale optimization algorithm (IWOA) is presented to estimate the surface duct and the results show that IWOA has best accuracy and stability for almost all the benchmark functions and the inversion of thesurface duct.
Abstract: An improved whale optimization algorithm (IWOA) is presented to estimate the surface duct. First, the iteration and selection mechanism in whale optimization algorithm (WOA) are modified to...
TL;DR: In this article, a multilayer inductor for millimeter-wave regime was fabricated based on 130nm SiGe process with compact size and high quality factor (Q), the area of cross-section for the propos...
Abstract: In this article, a multilayer inductor for millimeter-wave regime was fabricated based on 130 nm SiGe process with compact size and high quality factor (Q). The area of cross-section for the propos...