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186 articles for “patch”
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Patch Testing
Abstract: Contact dermatitis is an inflammatory disorder (erythema, edema and vesiculation) caused by repeated contact with an exogenous or noxious agent progressed to skin sensitivity or directly damage the skin. The prevalence of work-related Allergic Contact Dermatitis e.g., hair dressing, construction work, cleaning and health care biomedical devices etc. accounts for 20% in the general population. Patch test are standard method for diagnosing chronic dermatitis or Allergic Contact Dermatitis (ACD). Additional …
Published in Research and Reviews : A Journal of Immunology · Vol. 11, Issue 3, 2021 · pp. 33–41 Read article
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Gain Enhanced 2.4 GHz Slotted Rectangular Microstrip Patch Antenna with FR-4 Epoxy Substrate
Abstract: Applications that use the Internet of Things (IoT) must be combined with wireless networking technologies. This makes it easy to get to the application data. The wireless communication system is a key part of the infrastructure for the Internet of Things. It acts as a bridge for two-way connections to gather data and send control messages. In this work, HFSS software is used to create a rectangular microstrip patch antenna …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 1, 2023 · pp. 20–26 Read article
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Interfacial Performance and Structural Stability of Repaired vs. Replaced Polymer-Based Composites: A 3-Year Retrospective Analysis of 'Patch-up' Restorative Engineering
Abstract: Objective: This retrospective study aimed to evaluate the clinical longevity and interfacial success of repairing aged polymer-based composites versus complete replacement, focusing on the integration between the existing polymer matrix and the new restorative material. Materials and Methods: A retrospective clinical audit was conducted on 50 cases (n = 50) of posterior restorations with localized defects. The sample was categorized into: Group A (n = 25), where defective sites were …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 180–187 Read article
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A Comparative Study on Effect of Dielectric Covers on Microstrip Patch Antenna
Abstract: In this paper, the square patch microstrip antenna covered with different dielectric covers affects are studied at different heights above the patch and also compared their performance parameters with theoretical and experimental. The square patch antenna has been designed at 2.4GHz on airlon diclad substrate, whose dielectric constant is 2.2 and thickness is 1.6mm and simulated using HFSS simulation software. The affect of dielectric cover above the patch at height …
Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 1, 2022 · pp. 16–20 Read article
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Analysis of Transdermal Patches: A Surgical Perspective
Abstract: In addressing the challenges associated with oral drug administration, the introduction of a transdermal drug delivery system has proven to be a valuable alternative. This system involves the application of a transdermal patch onto the skin, facilitating the controlled release of a specific medication through the skin and into the bloodstream. The primary objective is to enhance the healing process of the affected area of the body. Notably, the transdermal …
Published in Research and Reviews : Journal of Surgery · Vol. 12, Issue 3, 2023 · pp. 10–13 Read article
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Design and Simulation of E-Shape Micro-strip Patch Antenna at 2.45GHz
Abstract: AbstractThis paper presents comparison of rectangular micro strip patch antenna and E-Shaped micro strip patch antenna operating at 2.45GHz. Two parallel slots are made into the basic rectangular patch design of micro strip antenna which resulted into desired E-shaped patch. The basic design consist of inset feed type and we have used dielectric substrate Fr4 epoxy whereas E-shaped patch consist of coaxial probe and RT Duroid as substrate. Both the …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 1, 2020 · pp. 17–24 Read article
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Design and Simulation of Triple Band Microstrip Patch Antenna for Ku-band, K-band and Ka-band Applications
Abstract: AbstractThis paper represents a microstrip patch antenna for future 5G-communication technology. The proposed antenna designs are simulated and their performances are analyzed for different parameters like lower return losses, higher gain, voltage standing wave ratio (VSWR), current distribution, far field radiation and wide bandwidth performance for the tri-frequency band operation in Ku band (12–18 GHz),K-band (18–27 GHz) and Ka-band (27–40 GHz) as per the specified IEEE standard. The proposed antenna …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 7, Issue 1, 2020 · pp. 26–33 Read article
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Patch Antenna by using Tunable Metamaterial for Dual Band Application
Abstract: AbstractIn this paper, a novel compact microstrip antenna, designed on FR4 substrate, is proposed. Here, a compact Square patch antenna is designed in such a way that a layer of metal between the patch load and the radiating patch moreover, the ground which makes the antenna operate at a lower frequency and antenna at 2.418 GHz with the directivity and gain is 6.58 6dB and 2.935dB. The Tunable metamaterial is …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 3, 2018 · pp. 20–24 Read article
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Analysis of a Dual Band Stacked Patch Antenna with Multiple Notches
Abstract: This paper presents the design and analysis of compact dual band stacked microstrip patch antenna for various applications. The designed antenna structure represents the dual frequency band operation and it covers the S band, frequency applications such as Wi-Fi, surface ship radar, weather radar, broadcasting in the range from 2.31GHz to 3.77GHz frequency band, radar, satellite based digital audio radio service (DARS) communication and some communication satellites. The parameters of …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 1, 2017 · pp. 23–28 Read article
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Advancements in Buccal Patch Drug Delivery Systems: A Comprehensive Review of Evaluation Parameters
Abstract: The most dependable delivery method is buccal patches because it offers many improvements over alternative methods.This delivery method circumvents the hepatic first pass metabolism to deliver the medication into the systemic circulation. Buccal patches are inserted between the cheek and gums, where they dissolve and absorb through the buccal cavity's mucosal membrane. Polymers can be used to control the drug's delivery, and intelligent polymeric systems are a good option for …
Published in OmniScience: A Multi-disciplinary Journal · Vol. 15, Issue 2, 2025 Read article
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Optimizing Multi-Cloud Infrastructure: Advanced Bash-Based Automation for Automated Security Patching and Health Monitoring in Hybrid Linux Environments
Abstract: The proliferation of multi-cloud and hybrid Linux environments has introduced significant operational complexity, particularly in maintaining security compliance and system reliability across diverse infrastructure silos. Traditional patch management approaches, relying on manual interventions or disparate vendor-specific tools, suffer from latency, configuration drift, and limited visibility. This article presents a novel, lightweight automation framework constructed entirely in advanced Bash scripting to address automated security patching and real-time health monitoring across hybrid …
Published in Journal of Advances in Shell Programming · Vol. 13, Issue 2, 2026 Read article
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Design and Analysis of Dual Band Triangular Slotted Microstrip Patch Antenna for GPS and WLAN Application
Abstract: AbstractIn this paper, design of a dual operated microstrip patch antenna is presents. The dual-operation frequencies are chosen for UMTS/GPS and WLAN bands. A microstrip square patch antenna is designed which is excited by a microstrip line feed from the bottom of the antenna. An epoxy glass FR4 material is used as a substrate in the designing of antenna. The antenna is first modified in inverted U-shaped design to operate …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 2, 2019 · pp. 1–5 Read article
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A Dipole Circular Patch Antenna for Operation in the X-Band
Abstract: This microwave engineering research paper proposes, designs, calculates, and simulates a novel dipole circular patch antenna for theoretical wideband operations in the X-band (the 8 GHz to 12 GHz frequency range). This proposed microstrip patch antenna was realized using FR-4 as a dielectric (a thickness of 1.5 mm) with copper being used in both the ground plate and the two transmitting circular elements (the so-called patches with a thickness of …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 2, 2021 · pp. 1–8 Read article
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Design and Fabrication of Patch Antenna using DGS for WLAN and WIMAX Applications
Abstract: AbstractIn this paper a small size micro strip patch antenna with dual frequency characteristics is presented. The proposed antenna is designed on an FR-4 epoxy dielectric substrate with the thickness of 1.6 mm and dielectric constant er =4.3. The proposed antenna has used defected ground structure (DGS) stop theory to create dual frequency band characteristics 2.13GHz – 3.25 GHZ for WIMAX and 5.725GHz – 6.3084 Hz for WLAN, respectively. The …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 1, 2020 · pp. 5–16 Read article
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Rectangular Micro Strip Patch Antenna Interconnected with Symmetrical Cut Hexagonal Shaped between Horizontal Lines Meta Material Structure Enhancement Bandwidth at 1.80 GHz
Abstract: This paper proposes a new generation of antenna that applies Metamaterial (MTM) properties at ground plane. The paper analyzes the performance of Microstrip Patch Antenna with and without using the MTM structure. Rectangular Microstrip Patch Antenna (RMPA) interconnected with symmetrical cut hexagonal shaped between horizontal lines MTM structure is proposed for enhancement of bandwidth and reduction of return loss at operating frequency of 1.80 GHz. The proposed antenna is designed …
Published in Journal of Microwave Engineering and Technologies · Vol. 1, Issue 3, 2014 · pp. 15–20 Read article
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E-Shaped Microstrip Patch Antenna for High Speed Wireless Local Area Network (WLAN) Applications
Abstract: A microstrip antenna consisting of E-shape radiating patch having low profile, probe-fed is designed and proposed for wireless local area networks (WLAN) applications. All countries use different WLAN, as the antennas available are not able to cover all the standards. This study aims to design a smallest antenna with better polarization covering all high speed WLAN standards ranging from 4.47 to 5.82 GHz. The patch antenna designed on low cost …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 4, Issue 1, 2017 · pp. 1–5 Read article
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Enhancing Terahertz Patch Antennas: The Role and Impact of Graphene
Abstract: Terahertz (THz) communication systems are gaining increasing attention because of their ability for high-speed wireless data transmission, making them suitable for the 6th-generation wireless applications. Patch antennas, commonly used in these systems, play a crucial role in signal transmission and reception. There are various types of conductive materials available for patch antennas, but the unique characteristics of graphene make it a suitable choice. This study explores the significance and contribution …
Published in Trends in Opto-electro & Optical Communication · Vol. 15, Issue 2, 2025 · pp. 41–51 Read article
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Design of a Microstrip Patch Antenna with an Array of Circular SRR Using Left-Handed Metamaterial
Abstract: In this paper, the design of a patch antenna with a metamaterial composed of circular SRR is proposed. The proposed antenna design is fabricated on FR4 substrate and the experimental results obtained are in good agreement with the simulated results. By using the circular SRR structure the return loss of the conventional patch antenna has been improved from -11.5dB to -18.5dB. influence of metamaterial designed on another layer characteristics of …
Published in Journal of Electronic Design Technology · Vol. 3, Issue 1-3, 2012 · pp. 24–28 Read article
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Design of Advanced Microstrip Patch Antenna for Wearable Application
Abstract: AbstractThis paper presents the review on design of wearable microstrip patch antenna at the operating frequency of 2.4 GHz for wearable application. This work presents a method of applying the combinational between wearable electronics and antennas. Textile antennas are the most interesting research. In telecommunications, microstrip patch antenna is increasing in recent years consequently textile antennas are increasingly demanding. Microstrip patch antenna is an ideal choice for integrated into clothes …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 3, 2019 · pp. 18–22 Read article
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A CPW Fed Inverted E-Shape Microstrip Patch Antenna for Multi Band Applications
Abstract: In this paper a CPW fed multi band monopole antenna with inverted E-shape micro strip patch is presented for radar/satellite applications. Ansys soft HFSS simulator is used to simulate the antenna in this paper. The proposed antenna consists of inverted E shape patch including finite ground CPW feeding. The antenna is fabricated on 1.5 mm FR4 substrate which has dielectric constant of 4.4 and loss tangent of 0.02. The operating …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 3, 2015 · pp. 26–35 Read article