Search
919 articles for “bands”
-
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
-
Design and Analysis of Multi Band Patch with Enhanced Bandwidth
Abstract: In this article, a novel lower edge defected multi-band patch with modified ground structure (or Defected Ground Structure-DGS) with enhanced bandwidth has been presented. The bandwidth can be enhanced by defecting the partial ground and by arc truncation of lower edges of the patch. The antenna was converted into multi-band by defecting the lower corners. The antenna is resonating at multiple bands i.e. 3.7 GHz, 7.87 (~7.9) GHz, 12.19 (~12.2) …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 3, 2020 · pp. 1–8 Read article
-
Effect of Image Band Number and Band Multicollinearity on Mapping Accuracy of Tree Diversity and Evenness
Abstract: 800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Satellite imageries are increasingly being used in the studies of plant diversity due to cost effective wider spatial coverage. Multispectral or hyperspectral imageries consist of different spectral bands where some bands might be multicollineared among them and deemed redundant to use in the classification/analysis. This study investigates how the accuracies of maps of tree diversity and evenness of an area …
Published in Journal of Remote Sensing & GIS · Vol. 4, Issue 2, 2013 · pp. 14–22 Read article
-
Non-linear Integral Equations Ideal Solar Cells Analysis with One and Two Intermediate Bands
Abstract: An innovative and groundbreaking theory is proposed by using intermediate bands within the energy gap of the semiconductor in order to increase the efficiency of solar cells. Consequently, photons with energy less than the band gap may contribute to the output device by using the intermediate band or bands, in order to jump to the conduction band. This problem is reduced to the solution of non-linear integral equations and for …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 4, Issue 2, 2013 · pp. 8–15 Read article
-
A Compact Umbrella Shaped Patch Antenna using DGS for Dual/Triple/Quad Band Applications
Abstract: In this paper, a compact Umbrella shaped microstrip patch antenna for Quad band applications specially for X band, Ku band and K band applications is presented. The antenna is simulated using the Ansys soft HFSS simulator. The size of the antenna is 25 mm×25 mm ×1 mm and printed on an FR4 substrate. Defected ground structure in the form of concentric circular rings is used to increase the bandwidth of …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 3, 2015 · pp. 36–44 Read article
-
INVESTIGATION OF MICROSTRIP BANDPASS FILTER FOR S-BAND APPLICATION
Abstract: Abstract— Microstrip bandpass filter is presented in this paper for S-band application. The filter employs the microstrip line with port matching topology and plane ground to operate in S-band frequency range. CST Microwave Studio simulator is used for simulation and Rohde & Schwarz Vector Network Analyzer is used for measurement. Filter has size of 120 mm x20 mm and fabricated using low cost FR-4 substrate of 1.6 mm thickness and …
Published in Current Trends in Signal Processing · Vol. 8, Issue 1, 2018 · pp. 28–32 Read article
-
Study of Bandwidth Enhancement of an S-band Microstrip Slot Antenna
Abstract: AbstractRelative study of rectangular patch, U-slot patch and E-slot patch antenna is conferred in this paper. The operating frequency is selected from S-band (2 GHz–4 GHz) which is relevant for Industrial science and medical (ISM) band, Bluetooth communication as well as wireless land area network (WLAN). High-frequency structure simulator (HFSS) software is used to investigate the results of the antennas. Microstrip patch antenna (MSPA) experience low Gain and narrow bandwidth. …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 3, 2019 · pp. 23–30 Read article
-
Compact Microstrip Band-pass Filter Using Open-loop Square Shaped DGS
Abstract: This paper presents to implement a compact microstrip band-pass filter with open-loop square dumbbell-shaped defected ground structure (DGS). This filter is designed at 2.1 GHz center frequency. The prototype filter is with defected ground structure to provide higher order quasi-elliptic filtering and it reports the return loss of 39 dB with a 3 dB fractional bandwidth of 880 MHz. The bandwidth of the band-pass filter can be easily controlled by …
Published in Journal of Electronic Design Technology · Vol. 4, Issue 1, 2013 · pp. 11–14 Read article
-
Compact Pseudo-interdigital Bandpass Filter for L-Frequency Band
Abstract: In this paper, a different kind of microstrip bandpass filter is presented which is small in size and easy in fabrication. This microstrip filter is pseudo-interdigital bandpass filter at the operating mid-band frequency of 1.75 Ghz, which is in L-frequency band (1–2 Ghz). Unlike the conventional interdigital bandpass filters, in which we use short circuit connection by a via hole, this filter is simple and compact and its design is …
Published in Journal of Electronic Design Technology · Vol. 4, Issue 1, 2013 · pp. 15–18 Read article
-
Bandgap Analysis of Quasi Bandgap Semiconductor Using FDTD Technique
Abstract: In this work photonic bandgap analysis of boron nitride (BN) quasi bandgap semiconductor is investigated using finite difference time domain (FDTD) method. Here boron nitride semiconductor is cogitated as a-BN, h-BN, c-BN and w-BN semiconductor, where boron nitride is realized by the combination of two BN semiconductor layers separated by air. Simulation for photonic bandgap of the aforementioned semiconductor structure is carried out with respect to thickness of odd and …
Published in Journal of Microelectronics and Solid State Devices · Vol. 2, Issue 2, 2015 · pp. 1–4 Read article
-
An Ultra Wideband Hexagonal Patch Antenna with Enhanced Bandwidth
Abstract: A microstrip line feed Ultra-Wideband (UWB - 3.1 to 10.6 GHz) hexagonal patch antenna with enhanced bandwidth was presented in this article. The enhancement of bandwidth (BW) is achieved by defecting the partial ground structure. The antenna is designed by FR-4 substrate with εr(dielectric constant) = 4.3 & Tan δ (loss tangent) = 0.025.Initially, a conventional hexagonal patch with a partial ground plane produces a – 10 dB bandwidth of …
Published in Recent Trends in Electronics Communication Systems · Vol. 9, Issue 1, 2022 · pp. 11–20 Read article
-
Quad-Band Notched Small Monopole Antenna with U-shaped Slots and SRRs for UWB Applications
Abstract: A quad-band notched small monopole antenna with U-shaped slots and SRRs for UWB applications is presented in this study. The quadruple band-notched characteristics can be achieved by embedding three U-shaped slots on the radiation patch and two split ring resonators (SRRs) near feed line, respectively. It has a tiny size, only 17 mm23 mm0.508 mm. The experimental and measured results demonstrate that the proposed antenna offers an impedance bandwidth across …
Published in Journal of Communication Engineering & Systems · Vol. 15, Issue 1, 2025 · pp. 21–31 Read article
-
Advanced 4-Element UWB-MIMO Antenna Design: Achieving High Isolation and Multi-Band Rejection for Advanced Wireless Applications
Abstract: In this study, we present the design, fabrication, and analysis of a step-by-step Ultra-Wideband (UWB) Multi-Input Multi-Output (MIMO) antenna operating from 3 to 14 GHz. The antenna consists of four elements, each characterized by high isolation and equipped with four band-rejection features. These elements are implemented on a Rogers substrate with εr=3. Each antenna element is a modified rectangular patch, incorporating partial ground etching to achieve wider bandwidth. Two sets …
Published in Journal of Communication Engineering & Systems · Vol. 15, Issue 1, 2025 · pp. 40–62 Read article
-
Practical Implementation of Textile Antenna for C-Band Application
Abstract: This article is explained with the design and fabrication of flexible wearable textile antennas integrated with the newly introduced C band application. In this paper, a compact crescent moon shape patch antenna for C-band application is presented. The presented antenna is designed on jeans substrate with dielectric constant of 1.7. The overall size of antenna is 53.3x59.9x1 mm. This antenna has been simulated using CST software. The presented antenna resonates …
Published in Recent Trends in Sensor Research & Technology · Vol. 4, Issue 1, 2017 · pp. 18–22 Read article
-
Dispersion Analysis of TE Modes in 1D Magnetized Ferrite Photonic Crystals for Tunable and Switchable Band Gap Filtering Device Applications under Transverse Magnetization Configuration
Abstract: The article comprehensively explores the dispersion characteristics exhibited by TE modes within one-dimensional magnetized ferrite photonic crystals, particularly under the influence of transverse magnetization. We employed the rigorous transfer matrix method, a powerful tool for theoretical investigation, calculation, and behavior analysis of such intricate systems. Our research delves into the structural parameters that govern the behavior of these ferrite photonic crystals, explicitly focusing on the incident parallel wave vector (β) …
Published in Journal of Polymer & Composites · Vol. 11, Issue 7, 2023 · pp. 60–68 Read article
-
Tri-Band Edge-Cut Rectangular Microstrip Patch Antenna on Composite Substrate for RF Energy Harvesting in IoT Networks
Abstract: The increasing use of Internet of Things devices underscores the pressing need for sustainable energy solutions, since traditional batteries necessitate regular replacement and constrain scalability. Radio frequency energy harvesting is a viable option; nonetheless, antenna design continues to provide a significant problem owing to the requirements for compactness, efficiency, and multi-band functionality. A hybrid composite substrate configuration combining FR4 (εr = 4.3) and RT Duroid (εr = 2.2) is employed …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 867–883 Read article
-
Planar UWB Antenna for 5 GHz ISM Band
Abstract: AbstractThe Ultra-Wide Band (UWB) technology used for high data rate with low power levels for many wide applications which mainly includes short range, wide bandwidth communications. The Planar UWB antenna is designed for 5GHz Industrial, Scientific and Medical (ISM) band. These bands are specially dedicated to industrial, scientific and medical applications other than telecommunications. ISM applications like Microwave ovens, RF process heating and medical diathermy application. Proposed antenna has VSWR …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 2, 2020 · pp. 1–6 Read article
-
Compact Dual Band Rat Race Coupler Using T-shaped Transmission Line and Fractal Geometry
Abstract: In this paper, a compact dual band rat race coupler is proposed at two different frequency bands. The dual band property is accomplished by transforming the length and impedance of conventional quarter wave transmission line into dual band T-shaped sections. To achieve the compactness, the dual band rat race coupler was transformed into fractal structure using Sierpinski curve analogy. Simple design equations are used for basic design geometries. Then the …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 2, 2017 · pp. 6–12 Read article
-
Study on EBG Structures and Application in UWB Band Pass Filter
Abstract: EBG automation has turn into important development in the field of microwave and RF because of its exclusive band gap attribute at convinced frequency areas. The survey of this paper shows various EBG structure and its operations in tract with microstrip antenna and filters along with EBG structure is planned to procure solid UWB band pass filter. The counterfeit is performed by Agilent ADS software.
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 2, 2015 · pp. 5–8 Read article
-
Study of Effect of Various Dielectrics on the Performance of Electromagnetic Bandgap Based Microstrip Patch Antenna Structure
Abstract: Here the effect of various dielectrics on the performance of microstrip patch antenna with underlying electromagnetic bandgap structure is investigated. This unique antenna structure suppresses the surface waves and reflects plane waves with no phase change and thus acts as a perfect magnetic conductor (PMC). Dielectric losses are reduced due to the presence of EBG structure and bandwidth enhancement is observed when compared to the non-EBG structure. The effect of …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 2, 2015 · pp. 13–18 Read article