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265 articles for “patches”
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Design and Evaluation of High Bandwidth Micro-strip Patch Antenna Arrays for WLAN Applications
Abstract: Micro-strip antennas are preferred to WLAN applications because of their low profile, light weight and low power handling capacity. In this paper, micro-strip patch antenna (MSPA) arrays are designed and analyzed. The target frequency range is at S-band with frequencies that range from 2 to 4 GHz. Antenna arrays are explored to achieve higher gain and improved bandwidth (BW). The key parameters to obtain this goal are antenna dimensions such …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 1, Issue 3, 2014 · pp. 1–11 Read article
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Simultaneous Estimation of Atenolol and Nifedipine to be incorporated in Buccal Patch: Method Development and Validation by UV-Spectrophotometric Approach
Abstract: A simple, precise, accurate and reproducible spectrophotometric method has been developed for the simultaneous estimation of Atenolol and Nifedipine. Atenolol and Nifedipine are used in combined dosage form for cardiovascular diseases. Hence, it is necessary to develop a method to analyze the two drugs simultaneously by UV-spectroscopic method. Simulated salivary fluid of pH 6.8 was used as the medium. Simultaneous equation method was developed as per ICH guidelines. The absorption …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 2, Issue 1, 2015 · pp. 28–32 Read article
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Analysis and Design of Frequency Reconfigurable Microstrip Patch Antenna using PIN Diode
Abstract: A reconfigurable antenna provides modify dynamically its frequency and radiation properties, which will provides the intentional redistribution of the RF currents over the antenna surface. Also this type of antennas provides the dynamical response. The difference between the smart antennas is its lies inside the antenna rather than in an external beamforming network. The proposed structure was simulated by using the High Frequency Structure Software (HFSS) version 15.0. The simulated …
Published in Journal of Mechatronics and Automation · Vol. 5, Issue 1, 2018 · pp. 17–23 Read article
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Review Paper of Designing of CPW Fed Micro-strip Patch Antenna for UWB and Bluetooth Application
Abstract: A compact size coplanar waveguide (CPW)-fed micro strip antenna is proposed for radiation of the frequency spectrums 2.36 to 2.49 GHz (Bluetooth) and 3.1 to 10.6 GHz (UWB-Ultra wideband) covers. Both are unlicensed bands but in UWB band there are two licensed bands i.e. WLAN and Wi-MAX present in the frequency range of 5.12 to 5.825 GHz and 3.4 to 3.7 GHz respectively. In this design we have single CPW-fed …
Published in Journal of Microwave Engineering and Technologies · Vol. 3, Issue 1, 2016 · pp. 35–40 Read article
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Enhancement of gain of multiband patch antenna
Abstract: In this paper we discuss about the multi notch multi polarization antenna for wireless communication, form some previous time there are various researches are to be performed in the field of multi notch and multi polarization, there are various application are being developed on the basis of this which are notch antenna, multiple polarization and the circular polarization antenna which is being widely used in the satellite communication, in this …
Published in Journal of Advances in Shell Programming · Vol. 5, Issue 2, 2018 · pp. 7–11 Read article
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Landscape Characterization in a Watershed of Western Himalayan Ecoregion
Abstract: The study was carried out in Kalsa watershed of Western Himalayan Ecoregion to quantify the landscape structure with special reference to different forest ecosystems. Vegetation and land use map generated using satellite remote sensing data was taken as an input for quantification of landscape structure, which was quantified based on different patch attributes (number, area, shape complexity) and landscape indices viz., Euclidean nearest neighbor distance and contagion. Temperate broadleaf forest …
Published in Journal of Remote Sensing & GIS · Vol. 6, Issue 1, 2015 · pp. 1–10 Read article
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A Novel Liquid Crystal Drug Delivery for Transdermal Application
Abstract: The present study was aimed at the formulation of liquid crystals of acyclovir that will be incorporated into a transdermal patch. Liquid crystals serve as drug carrier and have a good penetration-enhancer property, due to the extensive similarity of these colloidal systems with the intercellular lipids in the stratum corneum. The liquid crystals were prepared using tween 80 as emulsifier, cetosteryl alcohol as emulsion stabilizer and double-distilled water. Liquid crystals …
Published in Trends in Drug Delivery · Vol. 2, Issue 2, 2015 · pp. 28–37 Read article
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Microneedles and the paradigm shift in the field of dentistry: A Review Article
Abstract: Needle-based instruments are advancing as a promising tool for both diagnosis and treatment within the medical realm. They possess versatility, being capable of drug delivery and fluid extraction, catering to both systemic and local requirements. Unlike traditional drug delivery methods, which necessitate repeated dosing in the oral cavity due to saliva presence, there's a growing demand for delivery systems like needle-based devices that can offer sustained drug release orally. These …
Published in Research and Reviews: A Journal of Dentistry · Vol. 15, Issue 4, 2024 Read article
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The Therapeutic and Biotechnological Potential of Pogostemon benghalensis – A Comprehensive Review
Abstract: Pogostemon benghalensis is a fragrant perennial shrub belonging to the family Lamiaceae, widely distributed across tropical and subtropical regions of Asia. It has been extensively utilized in traditional and ethnomedicinal systems for the treatment of wounds, skin infections, fever, digestive disorders, inflammation, and respiratory ailments. The plant is also valued for its antiseptic, aphrodisiac, insect-repellent, and veterinary medicinal properties. Its leaves, roots, and essential oil are incorporated into herbal formulations, …
Published in Research & Reviews : Journal of Botany · Vol. 15, Issue 2, 2026 · pp. 55–63 Read article
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A Review on Quad Band Microstrip Antenna for GSM and GNSS Application
Abstract: Micropstrip or patch antennas are also known as a printed antenna fabricated on printed circuit board (PCB). Microstrip antennas are low cost, have a low profile, low weight and are easily fabricated [1]. They are used atmicrowave frequencies. In this review paper, a survey on quad band operations in patch antenna papers, which have been used by authors for designing of low profile, small compatible patch antenna, have been presented. …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 1, 2017 · pp. 1–5 Read article
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Polarization Reconfigurable Antenna: Design and Analysis
Abstract: This paper presents an analysis and design of a polarization reconfigurable microstrip patch antenna fed with single and dual feeds operating at WLAN frequency. For a single feed structure a square patch is designed first and is perturbed for obtaining circular polarization. Using PIN diodes this design can be made to generate different polarizations. In case of a dual feed structure the radiating square patch has dual feeding provision and …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 1, 2015 · pp. 1–8 Read article
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Generation of Facial Expressions through Manipulating Facial Parameters
Abstract: Extracting discriminative features from salient facial patches plays an important role in effective facial expression recognition. The accurate detection of facial landmark needed to improve the localization of the salient patches on face images. This paper proposes framework for expression recognition by using appearance features of facial patches. By synthesize of emotional facial expressions through manipulating facial parameters, we aim to introduce facial emotion to a neutral facial image. For …
Published in Journal of Artificial Intelligence Research & Advances · Vol. 3, Issue 2, 2016 · pp. 33–38 Read article
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Simulation And Analysis of Radio Frequency Energy Harvesting System Operating at 2.45 GHz Frequency
Abstract: — This paper proposed study of an RF energy harvesting system at 2.45 GHz using a rectifier and an antenna so called rectenna. Inset-fed micro-strip rectangular patch antenna array is fabricated. The rectifier circuit, employing Schottky diodes (HSMS-2850), converts AC power from the antenna to DC for RF detection. Analysis of the antenna's design and parameters such as directivity, return loss, gain, and VSWR is done using high-frequency simulator software …
Published in Journal of Microwave Engineering and Technologies · Vol. 11, Issue 1, 2024 · pp. 7–15 Read article
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Polymer Chemistry in Sustained-Release Herbal Composites: Designing a Stable Euphorbia tithymaloides Topical System with Phospholipid and Polymer Matrices
Abstract: Polymer chemistry enables the stabilization and sustained release of herbal actives, critical for topical therapeutic applications. This study explores a novel process for preparing a stable, sustained-release topical composition of Euphorbia tithymaloides, leveraging polymer-based systems. Ethanolic extract (50 mg) of the plant, rich in unstable sugar moieties (e.g., D-ribose) and sterols (e.g., stigmasterol), is encapsulated within a phospholipid matrix of phosphatidylcholine (50–100 mg) and cholesterol (50–100 mg). This lipid-polymer complex, …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 165–171 Read article
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Design and Analysis of Closed Flow System with Varying Various Parameters of Hydrodynamics for PEH
Abstract: In this work, a piezoelectric energy harvesting system is designed, which can vary different parameters for analyzing the output of PVDF (e.g. water flow rate, piezoelectric patch, piezoelectric circuit, pressure head and different configurations of installation of piezoelectric etc.). A prototype model is made of this system is made for experimental analysis. The analysis of the prototype is done by varying two parameters (i) Water flow rate (ii) Piezoelectric circuit. …
Published in Journal of Control & Instrumentation · Vol. 8, Issue 3, 2017 · pp. 30–37 Read article
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Bandwidth Enhancement of MPA using DGS
Abstract: In this paper, the authors proposed an MPA with DGS to enhance its parameters and mainly bandwidth of the antenna. To achieve a very important bandwidth enhancement the authors proposed a rectangular shaped symmetrical DGS in the ground plane. This DGS on the ground plane increases the fringing field which reluctantly increases the parasitic capacitance. This increases the coupling between patch and ground which make the bandwidth to increase from …
Published in Journal of Microwave Engineering and Technologies · Vol. 3, Issue 1, 2016 · pp. 6–10 Read article
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Design of a Stacked Aperture Coupled Microstrip Antenna for UWB Applications
Abstract: The paper presents a stacked T-shaped Aperture coupled microstrip antenna designed for ultra-wide band wireless applications. The proposed UWB antenna covers two frequency bands as of 2.49 to 2.9 GHz and 6.85 to 20 GHz and used for the various applications like Bluetooth, Zig-Bee (2.4 GHz), C band (6 to 8 GHz), X band (8 to 12 GHz), Ku band (12 to 18 GHz) and Satellite communication. The stacked antenna …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 4, Issue 1, 2017 · pp. 12–16 Read article
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High Gain Antenna Array (2x1 and 4x1) Design for WLAN Application
Abstract: Micro-strip antennas became very popular in 1970s primarily for space borne applications. Today they are used for government and commercial applications. These antennas consist of a metallic patch on a grounded substrate. The metallic patch can take many different configurations. However, the rectangular and circular patches are most popular because of ease of analysis and fabrication, and their attractive radiation characteristics, especially low cross-polarization radiation. In high performance aircraft, spacecraft, …
Published in Journal of VLSI Design Tools and Technology · Vol. 8, Issue 2, 2018 · pp. 1–8 Read article
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A Review on Parasitically Coupled and a Direct Coupled Feed for a Microstrip Antenna Array
Abstract: Due to modern electronics, small size electronic systems have been increasing in integrated circuits and the physical size of systems is reduced. Hence, demand of small and low cost antennas has increased. Microstrip or patch antenna provides the lightweight, not expensive, and integration is easy. Microstrip antennas or patch antennas are one of the most attractive antennas for integrated systems and are widely used in wireless communication systems. This paper …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 1, 2018 · pp. 15–18 Read article
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T-Shape Antenna with Defected Ground for 5G Applications
Abstract: In this paper, for 5G cellular applications, a novel microstrip patch antenna with high gain and wide bandwidth MMW frequencies is presented. The antenna is designed as single T-shaped radiating patch on the top layer of substrate and for improving the bandwidth and return loss characteristics, partial ground is incorporated on the bottom plane. A 50Ω matched lumped port is used for the feeding. In addition, the proposed antenna is …
Published in Journal of Mobile Computing, Communications & Mobile Networks · Vol. 6, Issue 1, 2019 · pp. 23–27 Read article