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Keyword: Wide bandwidth
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Open AccessArticle
4 Pages, 1,954 KB Download PDF

Wideband and High-Gain Aperture Coupled Feed Patch Array Antenna for Millimeter-Wave Application

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 5, Page # 559–562, 2020; DOI: 10.25046/aj050569
Abstract:

Millimeter-wave (mmW) antenna is one of the most important parts of the fifth-generation (5G) systems because of its advanced characteristics, for example, wideband and high transmission rate. In this paper, an mmW 4×1 array antenna with high gain and wideband based on an aperture coupled feeding patch (ACFP) antenna is presented. The proposed array antenna…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
9 Pages, 6,068 KB Download PDF

Achieving a High Isolation for the Triple-band MIMO Antenna in 5G/ Wi-Fi 6 Applications using Symmetric Parasitic Structure

Advances in Science, Technology and Engineering Systems Journal, Volume 8, Issue 2, Page # 139–147, 2023; DOI: 10.25046/aj080216
Abstract:

Recently, the Multiple-input multiple-output (MIMO) antennas have been used a lot and attracted many researchers in advanced high-speed wireless communication systems. MIMO antennas are an essential part not only in access points but also in end-user devices. This technology allows a significant increase in channel capacity, but also lead to a challenge of minimize mutual…

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(This article belongs to Section Electronic Engineering (EEE))
Open AccessArticle
5 Pages, 1,183 KB Download PDF

Novel CPW-fed UWB antenna for X-band applications

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 78–82, 2019; DOI: 10.25046/aj040210
Abstract:

An ultra-wideband (UWB) printed antenna (PMA) powered by a compact coplanar waveguide (CPW) is featured. The propounded antenna is supposed to cover the UWB range from 7 GHz to 10 GHz, with return loss values below -10 dB in the whole frequency range, for X-band applications, often used for dense satellite communications. The 30 x…

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(This article belongs to the isaect-18 (Special Issue on Advanced Electrical and Communication Technologies 2019) & Section Telecommunications (TEL))
Open AccessArticle
7 Pages, 928 KB Download PDF

A Switched-Capacitor Low-Pass Filter with Dynamic Switching Bias OP Amplifiers

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 6, Page # 100–106, 2017; DOI: 10.25046/aj020613
Abstract:

A switched capacitor low-pass filter employing folded-cascode CMOS OP Amps with a dynamic switching bias circuit capable of processing video signals, which enables low power consumption, and operation in wide bandwidths and low power supply voltages, is proposed. In this filter, charge transfer operations through two-phase clock pulses during the on-state period of the OP…

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(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Electronic Engineering (EEE))
Open AccessArticle
6 Pages, 1,112 KB Download PDF

In Body Antenna for Monitoring and Controlling Pacemaker

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 74–79, 2020; DOI: 10.25046/aj050209
Abstract:

This paper is an extension of work originally presented in 2019 International Conference on Automation, Computational and Technology Management (ICACTM). A micro-strip patch in-body designed antenna is constructed on pacemaker to monitor and control the pacemaker wirelessly. The antenna is intended for ISM (Industrial, Scientific, and Medical) band (2.4 GHz to 2.48 GHz). A perfect…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Telecommunications (TEL))
Open AccessArticle
18 Pages, 1,256 KB Download PDF

Material, Structural Optimization and Analysis of Visible-Range Back-Illuminated OPFET photodetector

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 485–502, 2019; DOI: 10.25046/aj040459
Abstract:

High gain-bandwidth product and visible/UV contrast photodetectors are vital in Visible Light Communication (VLC) and Ultraviolet (UV) reflectance imaging applications respectively. We adopt material and structural optimization to perceive such photodetectors with back-illuminated Optical Field Effect Transistor (OPFET) wherein any potential difference in absorption coefficient of the semiconductor material between the visible and the UV…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Multidisciplinary Materials Science (MMU))

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