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123 articles for “Efficiency. Bandwidth”
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Microstrip Antenna for Hiper LAN Application
Abstract: In this article, the simulated return loss, radiation pattern and gain of the proposed antenna have been studied. The presented antenna provides wide bandwidth of 76%, covering the Frequency range from 2.505 to 5.576 GHz, which is best suitable for WLAN and Hiper LAN application. Keywords: Patch antenna, Hiper LAN, efficiency, bandwidthCite this Article Niraj Kumar Sharma, Suryansh Chaudhary, Vinod Kumar Singh. Microstrip Antenna for Hiper LAN Application. Journal of …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 2, 2017 · pp. 22–25 Read article
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Performance Analysis of FFT-OFDM and DWT-OFDM and Its Implementation
Abstract: Orthogonal frequency division multiplexing (OFDM) is a unique scheme of multicarrier transmission where a single data stream is transmitted over a number of lower rate subcarriers. OFDM is a promising technology for good bandwidth efficiency. Recently, a worldwide convergence has occurred for the use of OFDM as an emerging technology such as Wi-Max, IEEE802.11a, 4th generation long term evolutionary (LTE), DVB etc., have adopted the OFDM technology as a mean …
Published in Recent Trends in Electronics Communication Systems · Vol. 3, Issue 1, 2016 · pp. 1–8 Read article
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Design and Performance Analysis of a Log Periodic Dipole Antenna with a Frequency Range of 1350 to 2690 MHz
Abstract: The introduction of broadband systems to communication and non-communication technologies has demanded the design of broadband antennas. RF antennas have relatively small bandwidth and poor directivity while the log periodic dipole antenna (LPDA) provides better directivity and gain with wide bandwidth. For a communication link and data transmission at higher rates, wider bandwidth is required with high gain and directivity. This necessitates designing a wideband antenna. In this paper, a …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 1, 2017 · pp. 6–12 Read article
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Articulation Point Technique in MANET
Abstract: The mobile ad hoc network, which is a wireless network of special type and has a collection of wireless hosts with wireless network interfaces, encompasses a temporary network, without any established infrastructure or centralized administration. All wireless nodes will start broadcasting again all the received broadcast messages. It is a common problem called as blind broadcast. Every node may receive the same copy of the messages from all the neighboring …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 3, Issue 3, 2016 · pp. 25–34 Read article
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A Short Survey of Data Compression Techniques for Column Oriented Databases
Abstract: AbstractColumn oriented data-stores has all values of a single column stored as a row followed by all values of the next column. Such way of storing records helps in data compression since values of the same column are of the similar type and may repeat. This paper surveys the various data compression techniques in column oriented databases. Data compression is efficiently used to save storage space and network bandwidth. It …
Published in Current Trends in Information Technology · Vol. 3, Issue 2, 2013 · pp. 1–6 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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Li-Fi Technology: A Review
Abstract: Light-Fidelity (Li-Fi) takes visible light communication (VLC) further by using light emitting diodes (LEDs) to realise fully networked wireless systems [1]. One German physist Harald Hass has come up with a solution for most likely gotten frustrated at the slow speeds you face when more than one device is tapped in to the network, he calls “data through illumination” by sending data through an LED light bulb that varies in …
Published in Recent Trends in Electronics Communication Systems · Vol. 3, Issue 2, 2016 · pp. 26–32 Read article
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Performance Analysis of DWT Based OFDM System using SRRC Filter in Mobile Wimax over Fading Environment
Abstract: AbstractWavelets amid its capability to provide simultaneous information in both time and frequency domain, along with minimization of interference and improved bandwidth efficiency, is considered broadly as an efficient approach to replace fast Fourier transform (FFT) in the conventional orthogonal frequency division multiplexing (OFDM) systems. Efficient filter pulses are employed spectrally in such systems in order to mitigate the effect of inter-symbol interference (ISI) as well as satisfy the bandwidth …
Published in Journal of Communication Engineering & Systems · Vol. 7, Issue 1, 2017 · pp. 1–10 Read article
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Material Selection for Optimized Antenna Performance: A Comprehensive Analysis
Abstract: The performance of antennas is heavily influenced by the choice of materials used in their design. This work presents a comprehensive analysis of various materials and their properties relevant to antenna applications, focusing on parameters such as dielectric constant, conductivity, magnetic permeability, and thermal stability. The interplay between these properties significantly affects the efficiency, bandwidth, gain, and impedance matching of the antenna. This study explores materials such as metals, ceramics, …
Published in Journal of Microwave Engineering and Technologies · Vol. 12, Issue 2, 2025 · pp. 1–10 Read article
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A Compact Pellet Drum Shape Microstrip Patch Antenna
Abstract: This paper consists of microstrip patch antenna designed with coaxial feed technique. The antenna is mainly anticipated to be used for UMTS wireless applications. The results illustrate that wide bandwidth of 33.26% is obtained covering the frequency range from 2.03 to 2.84 GHz. Next, the characteristics of the designed structure are investigated by using MoM based electromagnetic solver, IE3d. Finally, a broad analysis of the return loss, radiation pattern and …
Published in Journal of Microelectronics and Solid State Devices · Vol. 3, Issue 3, 2016 · pp. 10–14 Read article
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Pellet Drum Microstrip Patch Antenna for UMTS Application
Abstract: This paper consists of microstrip patch antenna designed with coaxial feed technique. The antenna is mainly anticipated to be used for UMTS wireless applications. The results illustrate that wide bandwidth of 33.26% is obtained covering the frequency range from 2.03 to 2.84 GHz. Next, the characteristics of the designed structure are investigated by using MoM based electromagnetic solver, IE3d. Finally, a broad analysis of the return loss, radiation pattern and …
Published in Journal of Semiconductor Devices and Circuits · Vol. 4, Issue 1, 2017 · pp. 24–28 Read article
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Deteriorated Square Microstrip Patch Antenna
Abstract: This paper contains microstrip patch antenna designed by way of coaxial feed technique. The antenna is mainly intended to be used for WiMAX middle band (3.25-3.85 GHz) wireless applications. The result shows that wide bandwidth of 68.46% is obtained covering the frequency range from 2.32 to 4.73 GHz. The characteristics of the designed structure are investigated by using MoM based on electromagnetic solver, IE3d. In the end, an extensive analysis …
Published in Recent Trends in Sensor Research & Technology · Vol. 4, Issue 1, 2017 · pp. 13–17 Read article
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2.9 GHz Plus Slotted Square Microstrip Patch Antenna
Abstract: This paper contains microstrip patch antenna designed by way of coaxial feed technique. The antenna is mainly intended to be used for WiMAX middle band (3.25–3.85 GHz) wireless applications. The result shows that wide bandwidth of 68.46% is obtained covering the frequency range from 2.32 to 4.73 GHz. The characteristics of the designed structure are investigated by using MoM based on electromagnetic solver, IE3d. In the end, an extensive analysis …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 3, Issue 3, 2016 · pp. 16–20 Read article
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Triangular Slotted Microstrip Patch Antenna for Wireless Application
Abstract: Abstract In this article, a dumbbell shape microstrip patch antenna has presented mainly used for WLAN wireless applications. The simulated result shows that dual bandwidth of 49.07 and 9.47% are obtained covering the frequency range from 1.63 to 2.69 GHz and 3.42 to 3.76 GHz. The characteristics of the designed structure are investigated by using MoM based on IE3d. In the end, an extensive analysis of the return loss, radiation …
Published in Journal of Microwave Engineering and Technologies · Vol. 3, Issue 3, 2016 · pp. 8–12 Read article
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Enhancement of Bandwidth and Gain Dielectric Resonator Antenna : A Review Paper
Abstract: This Paper presents an analysis of investigation on dielectric resonator antenna (DRA’s) over the last three to four decades. In every decade the research would come up with new trends. The current status of the dielectric resonator antenna technology is now reviewed. Always the evaluation has been done on the foundation of around vital parameters that include Bandwidth, Efficiency, realized Gain, Dielectric constant, dimensions, and DRA material used. This paper …
Published in Journal of Advances in Shell Programming · Vol. 5, Issue 2, 2018 · pp. 20–25 Read article
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High-Gain Microstrip Patch Antenna for Satellite and Radar Applications
Abstract: The growing demand for high-speed wireless communication, satellite connectivity, and advanced radar systems has increased the necessity for compact and high-performance antenna designs. This study presents the design and analysis of a high-gain microstrip patch antenna intended for satellite and radar applications operating in the microwave frequency range. The proposed antenna structure is developed using a low-loss dielectric substrate to enhance radiation efficiency, bandwidth, and gain characteristics while maintaining a …
Published in Journal of Microwave Engineering and Technologies · Vol. 13, Issue 2, 2026 Read article
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Analysis of Losses in Geostationary Intersatellite Optical Wireless Communication Links
Abstract: The effective method to create a link between satellites is inter-satellite communication. Data is transmitted from one side to the other via a laser in this groundbreaking method. Optical networks, which offer continuous data transport over vast distances, are networks with high bandwidth efficiency. Inter-satellite optical wireless communication (Is-OWC) is a common method to transfer high-speed data between various satellites in free space. Is-OWC networks have undoubtedly innovated satellite communications …
Published in International Journal of Satellite Remote Sensing · Vol. 2, Issue 2, 2024 · pp. 1–18 Read article
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Analysis of a Communication Link Performance Across Various Rayleigh Channels in Tropical Climates
Abstract: Tropical regions are characterized by intense and persistent rainfall throughout most of the year, and this environmental condition significantly influences wireless communication performance. The continuous presence of heavy precipitation weakens, scatters, and disrupts radio frequency signals, causing noticeable attenuation during transmission from the source to the destination. As a result, reliable communication becomes challenging, particularly for modern high-speed systems such as 5G networks. To address this limitation and enhance communication …
Published in Journal of Communication Engineering & Systems · Vol. 16, Issue 1, 2026 · pp. 06–12 Read article
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Estimation of Semi-Blind Channel for Two-Way Relay by Using CRB: Pilot-based and Random Pilot-based
Abstract: The main purpose of semi-blind channel estimation scheme is for frequency-selective channel estimation, for multi-input and multi-output (MIMO) on relay networks, for using high bandwidth efficient use of spectrum. This scheme motivate to the low complexity of system to allow exchange information users to users by using an intermediate relay node. Because of superposition of signals at the relay node, section receiving signal at the user terminals is affected by …
Published in Current Trends in Signal Processing · Vol. 7, Issue 2, 2017 · pp. 22–31 Read article
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Plus Slotted Circular Patch Antenna for WiMax/WLAN Applications
Abstract: A wideband compact circular patch microstrip antenna is presented for various wireless systems such as WLAN and WiMax applications. The proposed antenna has been fabricated and the return loss bandwidth is measured. The simulated and measured antenna such as return loss, bandwidth and gain are presented. The Experimental result shows that the proposed antenna presents a bandwidth of 78.81% with the maximum gain of 6.2 dBi.
Published in Journal of Microwave Engineering and Technologies · Vol. 1, Issue 3, 2014 · pp. 38–43 Read article