Sattar Hasan

• Salahaddin University-Erbil

– This study is established for designing an Equilateral Triangular Microstrip Patch Antenna (ETMPA) operating at 28GHz suitable for 5G application technologies. The design procedure is performed by considering inset fed techniques and implementing both Computer Simulation Technology (CST) and High Frequency Simulator Structure (HFSS) in order to a...

In this study a comparative analysis of various empirical models for estimating radio wave propagation path losses with those measured experimentally for the rural area in Erbil city is presented. In Gazna village near the center of the Erbil city, one of the Korek telecommunication towers is selected for the purpose of comparative analysis and sev...

This article presents a systematic technique for designing a novel multiband plasmonic antenna based on graphene with a silicon nitride (SiO3N4) dielectric substrate in the terahertz band frequencies. Higher conductivity values are found in the 1–5 THz ranges when the graphene conductivity values are measured at these band frequencies. Based on thi...

In this article, the design and performance of a novel rectangular microstrip patch antenna (RMPA) utilizing the dielectric substrate material FR4 of relative permittivity (Ԑ r = 4.3) and thickness (h = 0.254 mm) is proposed to operate at (f r = 28 GHz). Three different feeding techniques (microstrip inset line, coaxial probe, and proximity coupled...

Abstract The graphene-based plasmonic antenna’s operating frequency and performance are significantly controlled by the substrate dielectric material. In this article, a plasmonic microstrip antenna is designed and simulated for terahertz applications. The design procedure is performed by testing different dielectric substrate materials of the same...

In this article, the design of a single element elliptical microstrip patch antenna (EMSPA) operating at the X-band frequencies is proposed using the Computer Simulation Technology (CST) simulator. The inset-fed technique is employed in the design to feed the patch. Also, various patch eccentricity with different substrate materials of various thic...

In this article, different design configurations of rectangular microstrip patch antenna (RMSA) array operating at S-band frequency are presented. The substrate material utilized in the designs is Rogers-RT-5800 with dielectric permittivity (Ԑr= 2.2), thickness of (h=1.6 mm), and loss tangent of (δ = 0.009). The performances of a single element, (1...

This study is established for designing different horn antenna shapes operating at 28 GHz and comparing their radiation performance using both CST and HFSS (Computer Simulation Technology (CST) and High Frequency Simulator Structure (HFSS) simulation techniques. For this, pyramidal, E-plane, and H-plane rectangular horn antennas are selected for th...

Abstract This thesis deals with the design study of the low-cost and small-size MSAs to be used for mobile communication systems. The thesis has mainly focused on the design optimizations of antennas that are suitable for mobile phone devices operating at the frequency bands of DCS (1710-1880)MHz, PCS (1850-1990)MHz, and UMTS (1920-2170)MHz. It was...

The radiation performance of different triangular microstrip patch antenna (TMPA) shapes such as right triangle (RTMPA), isosceles triangle (ITMPA), obtuse triangle (OTMPA), and equilateral triangle (ETMPA) operating at (28 GHz) are computed and compared using inset-fed techniques and Rogers-RT5880 substrate material of permittivity () and (h=0.15...

In this paper, the designs and performances of coaxial fed circular and elliptical microstrip patch antennas operating at 28 GHz and 38 GHz are investigated using CST and HFSS simulation techniques. The substrates used in the designs are Rogers-RT-5880, RT-Duroid-6002 and FR-4 with a same thickness of (h=0.2 mm). To identify the optimum radiation p...

This study provides a deeper knowledge of the usage of finite integration techniques (FIT) and the finite element method (FEM) for analyzing various microstrip antenna shapes such as rectangular, circular and triangular patches. These patch shapes are fabricated practically and the efficiency of both mentioned methods have been identified through t...

Nowadays, the inventions in communication technology need to the construct of the compact, low profile, minimal weight and low-cost antennas for application on fifth-generation frequency spectrum (5G) devices. The purpose of this article is to design a single rectangular microstrip antenna RMPA with a reliable conductor patch material as well as mi...

The purpose of this work is to analyze and simulate the single patch rectangular microstrip antenna operating at 28 GHz to be utilized in 5G wireless communication system applications. The computed results of the proposed antenna are obtained through the use of Computer Simulation Technology microwave studio. For this purpose, a single patch with a...

In this study a comparative analysis of various empirical models for estimating radio wave propagation path losses with those measured experimentally for the rural area in Erbil city is presented. In Gazna village near the center of the Erbil city, one of the Korek telecommunication towers is selected for the purpose of comparative analysis and sev...

Improvement in the antenna gain is usually achieved at the expense of bandwidth and vice versa. This is where the realization of this enhancement can be made through compromising the antenna profile. In this work, we propose a new design of incorporating periodic metasurface array to enhance the bandwidth and gain while keeping the antenna to a low...

Improvement in the antenna gain is usually achieved at the expense of bandwidth and vice versa. is is where the realization of this enhancement can be made through compromising the antenna profile. In this work, we propose a new design of incorporating periodic metasurface array to enhance the bandwidth and gain while keeping the antenna to a low-p...

This paper proposed as a new of compact microstrip antennas operating at (28GHz), which is used for 5G-wireless communication device. The procedure is done with the help of CST Computer Simulation Technology microwave studio version-20 as well as MATLAB version-19a. For this purpose a copper patch with substrate named a Rogers RT5880 which has (Ɛr=...

This investigation deals with the identification of the suitable empirical models for predicting radio wave propagation path losses in Erbil city of Kurdistan region in Iraq. For this purpose, two sites of Korek Telecom operating at 1800 MHz and 2100 MHz have been selected at urban and sub-urban environments in the city and seven different empirica...

This paper proposed as a new of compact microstrip antennas operating at (28GHz), which is used for 5G-wireless communication device. The procedure is done with the help of CST Computer Simulation Technology microwave studio version-20 as well as MATLAB version-19a. For this purpose a copper patch with substrate named a Rogers RT5880 which has (Ɛr=...

In this study, a MATLAB computer program has been prepared and developed in three dimension views for computing the total shielding effectiveness (SE) as a function of both shield thickness and incidence angle to evaluate the optimum shield thickness that provide (90 and 120 )dB shielding effectiveness for both transverse electric (TE) and transver...

A cavity model well suited for computer aided design is presented and developed to study the rectangular microstrip antenna. The patch is described by geometrical and electrical parameters. The resonant frequency, resonant resistance, bandwidth, efficiency and other electrical parameters of RMSA have been presented as a function of varying the patc...

This chapter consists of two major subsections. First, the conclusion to this work is presented. It provides the integrated idea and the result of this study. Second, suggestions are given to improve the performance of the proposed antennas in future studies. 6-1: Conclusions: The objectives of this thesis were comprehensively accomplished. Accordi...

The effects of loss tangent, dielectric substrate permittivity and thickness on the electrical properties of circular microstrip antenna (CMSA) excited by a coaxial-feed have been investigated using cavity model. Accuracy of the present results of resonance frequency, input resistance, bandwidth, efficiency, gain, and directivity are compared with...