The Experts below are selected from a list of 6714 Experts worldwide ranked by ideXlab platform
Manish Sharma - One of the best experts on this subject based on the ideXlab platform.
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an ultra compact four port 4 4 superwideband mimo antenna including mitigation of dual notched bands characteristics designed for wireless network applications
Aeu-international Journal of Electronics and Communications, 2020Co-Authors: Manish Sharma, Vigneswaran Dhasarathan, Shobhit K Patel, Truong Khang NguyenAbstract:Abstract In this manuscript, four-port multiple-input-multiple-output (MIMO) superwideband antenna with mitigation of interfering bands is reported. The presented antenna comprises four identical Patches which are placed orthogonal to each other. Rectangular ground plane to placed below the Radiating Patch forming monopole configuration and reduces the overall size of the antenna. Size reduction of antenna also has no change in wide operating bandwidth of the proposed antenna and interfering bands. Interfering bands which include WiMAX, LTE43 and WLAN are suppressed by using T-C shaped stubs/slots on the Radiating Patch and it is also worth noting that no separate isolation technique is used to achieve isolation between the Radiating elements. Also, the inter-Radiating Patch maintains isolation of more than 20 dB with ECC (Envelope Correlation Coefficient) being less than 0.02 and TARC (Total Active Reflection Coefficient) less than 20 dB in operating bands. Single element, 2 × 2 MIMO, and 4 × 4 MIMO antenna is fabricated and confirms good agreement with simulated results.
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Design and Analysis of Multiband Antenna for Wireless Communication
Wireless Personal Communications, 2020Co-Authors: Manish SharmaAbstract:In this manuscript a compact multiband antenna with dimension 16 × 18 × 0.787 mm^3 is presented for multiple wireless applications including Digital Cellular System (1.71–1.88 GHz), Personal Communication System (1.85–1.99Gz), Bluetooth Wireless System (2.402–2.480 GHz), WiMAX (3.30–3.80 GHz), WLAN (5.150–5.825 GHz) and X-Band Downlink System (7.25–7.75 GHz). Radiating Patch consist of a glass shape and a rectangular ground plane. Two resonating bands (DCS, PCS and Bluetooth Wireless System) is obtained by inserting stubs whereas remaining bands (WiMAX, WLAN and X-Band Downlink System) is obtained by etching slots on the Radiating Patch. There is a close agreement between simulated and measured results which is obtained by fabricating prototype.
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high rejection plus shape Radiating Patch triple notched uwb x band reconfigurable monopole antenna for imaging and close range radar applications
2020 Indo – Taiwan 2nd International Conference on Computing Analytics and Networks (Indo-Taiwan ICAN), 2020Co-Authors: Naresh Kumar, Pradeep Kumar, Manish SharmaAbstract:This research article discusses monopole antenna designed for UWB (Ultrawideband) and X band applications. Patch is formed by merging two rectangular Patches and modified rectangular ground plane leading to impedance bandwidth of 2.82GHz-15.73GHz. Antenna is also capable of removing three interfering bands namely Wireless Interoperability for Microwave Access (WiMAX/C band: 3.30GHz - 3.80GHz / 3.80GHz - 4.20GHz), Wireless Local Area Network (WLAN: 5.150GHz - 5.825GHz) and Downlink Satellite System (DSS: 7.25GHz - 7.75GHz). These interfering bands are further reconfigured by using RF PIN diode so that each interference can be controlled individually. WiMAX notched band is achieved by etching circular slot on Radiating Patch, WLAN is obtained by using C-shaped parasitic stubs near feed line and DSS notched band is due to T-shaped slot also etched on Radiating Patch. Designed antenna offers good frequency, space and time domain analysis with stable radiation pattern, maximum gain of 4.85dBi, radiation efficiency of 89%, acceptable impulse response and group delay ≤0.20ns. The entire above designed features and results offers designed antenna for number of applications in wireless communication system.
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Design and Analysis of MIMO Antenna with High Isolation and Dual Notched Band Characteristics for Wireless Applications
Wireless Personal Communications, 2020Co-Authors: Manish SharmaAbstract:A very compact Superwideband multiple-input–multiple-output antenna with dual notched band characteristics is presented. Superwideband characteristics is obtained by means of Radiating Patch and high isolation between two input ports are obtained by using T-shaped stub in ground plane. Two rejection bands (wireless interoperability for microwave access (WiMAX)/C-band and wireless local area network) are obtained by etching two elliptical slots on Radiating Patch. Antenna offers large measured useable bandwidth of 2.60–20.04 GHz. Diversity performance is studied in terms of envelope correlation coefficient, diversity gain and total active reflection coefficient. Antenna also offers desirable radiation pattern, gain and radiation efficiency which makes proposed antenna quite suitable for different wireless applications.
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High Rejection Plus Shape Radiating Patch Triple Notched UWB/X Band Reconfigurable Monopole Antenna for Imaging and Close Range Radar Applications
2020 Indo – Taiwan 2nd International Conference on Computing Analytics and Networks (Indo-Taiwan ICAN), 2020Co-Authors: Naresh Kumar, Pradeep Kumar, Manish SharmaAbstract:This research article discusses monopole antenna designed for UWB (Ultrawideband) and X band applications. Patch is formed by merging two rectangular Patches and modified rectangular ground plane leading to impedance bandwidth of 2.82GHz-15.73GHz. Antenna is also capable of removing three interfering bands namely Wireless Interoperability for Microwave Access (WiMAX/C band: 3.30GHz - 3.80GHz / 3.80GHz - 4.20GHz), Wireless Local Area Network (WLAN: 5.150GHz - 5.825GHz) and Downlink Satellite System (DSS: 7.25GHz - 7.75GHz). These interfering bands are further reconfigured by using RF PIN diode so that each interference can be controlled individually. WiMAX notched band is achieved by etching circular slot on Radiating Patch, WLAN is obtained by using C-shaped parasitic stubs near feed line and DSS notched band is due to T-shaped slot also etched on Radiating Patch. Designed antenna offers good frequency, space and time domain analysis with stable radiation pattern, maximum gain of 4.85dBi, radiation efficiency of 89%, acceptable impulse response and group delay ≤0.20ns. The entire above designed features and results offers designed antenna for number of applications in wireless communication system.
Wan Nor Liza Binti Wan Mahadi - One of the best experts on this subject based on the ideXlab platform.
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Optimization of Planar Monopole Wideband Antenna for Wireless Communication System.
PloS one, 2016Co-Authors: M. N. Shakib, Mahmoud Moghavvemi, Wan Nor Liza Binti Wan MahadiAbstract:In this paper, a new compact wideband monopole antenna is presented for wireless communication applications. This antenna comprises of a new Radiating Patch, a new arc-shaped strip, microstrip feed line, and a notched ground plane. The proposed Radiating Patch is combined with a rectangular and semi-circular Patch and is integrated with a partial ground plane to provide a wide impedance bandwidth. The new arc-shaped strip between the Radiating Patch and microstrip feed line creates an extra surface on the Patch, which helps further widen the bandwidth. Inserting one step notch on the ground plane further enhances the bandwidth. The antenna has a compact size of 16×20×1.6mm3. The measured result indicated that the antenna achieves a 127% bandwidth at VSWR≤2, ranging from 4.9GHz to 22.1GHz. Stable radiation patterns with acceptable gain are achieved. Also, a measured bandwidth of 107.7% at VSWR≤1.5 (5.1-17GHz) is obtained, which is suitable for UWB outdoor propagation. This antenna is compatible with a good number of wireless standards, including UWB band, Wimax 5.4 GHz band, MVDDS (12.2–12.7GHz), and close range radar and satellite communication in the X-band (8-12GHz), and Ku band (12-18GHz).
Mohammad Ojaroudi - One of the best experts on this subject based on the ideXlab platform.
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Dual Band-Notched Small Monopole Antenna with Enhanced Bandwidth for UWB Applications
Wireless Personal Communications, 2013Co-Authors: Nasser Ojaroudi, Mohammad OjaroudiAbstract:This article proposes a novel printed monopole antenna for ultra wideband applications with dual band-notch function. The antenna consists of a disc-shaped Radiating Patch with a pair of folded strips arms, and a ground plane with a two L-shaped conductor backed plane, which provides a wide usable fractional bandwidth of more than 140 % (2.6---14.43 GHz). In order to generate single band-notch characteristics, we use a modified disc-shaped Radiating Patch with a pair of folded strips arms also by using this modified Radiating Patch, additional resonance is excited and hence much wider impedance bandwidth can be produced, especially at the higher band. By adding two L-shaped conductor backed plane in the ground plane a dual band notch function is achieved. The measured results reveal that the presented dual band-notch monopole antenna offers a very wide bandwidth with two notched bands, covering all the 5.2/5.8 GHz WLAN, 3.5/5.5 GHz WiMAX and 4 GHz C bands. The designed antenna has a small size of $$12\times 18\,\hbox {mm}^{2}$$ 12 × 18 mm 2 .
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novel design of dual band notched monopole antenna with bandwidth enhancement for uwb applications
IEEE Antennas and Wireless Propagation Letters, 2013Co-Authors: Nasser Ojaroudi, Mohammad OjaroudiAbstract:This letter proposes a novel printed monopole antenna for ultrawideband applications with dual band-notched function. The antenna consists of a square Radiating Patch with an inverted T-shaped ring slot, surrounded by a C-shaped slot, which provides a wide usable fractional bandwidth of more than 125% (2.71-12.06 GHz). In this structure, by cutting an inverted T-shaped slot, the impedance bandwidth is effectively improved at the upper frequency. In order to generate single band-notched characteristics, we use an inverted T-shaped slot, surrounded by a C-shaped slot, in the Radiating Patch. By adding an inverted T-shaped parasitic structure inside the inverted T-shaped slot on the Radiating Patch, a dual band-notched function is achieved, and also by inserting this parasitic structure, additional resonance is excited, and hence much wider impedance bandwidth can be produced, especially at the higher band. The measured results reveal that the presented dual band-notch monopole antenna offers a wide bandwidth with two notched bands, covering all the 5.2/5.8-GHz WLAN, 3.5/5.5-GHz WiMAX, and 4-GHz C-bands. The designed antenna has a small size of 12 × 18 × 0.8 mm3.
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Dual band-notched square monopole antenna for ultrawideband applications
IEEE Antennas and Wireless Propagation Letters, 2012Co-Authors: Mehdi Mehranpour, Changiz Ghobadi, Javad Nourinia, Ch Ghobadi, Mohammad OjaroudiAbstract:This letter proposes a novel printed monopole antenna for ultrawideband applications with dual band-notch function. The antenna consists of a square Radiating Patch with a pair of L-shaped slits, and an E-shaped slot and a ground plane with a V-shaped protruded strip, which provides a wide usable fractional bandwidth of more than 140% (2.89-17.83 GHz). In order to generate single band-notch characteristics, we use two L-shaped slits in the Radiating Patch. By adding an E-shaped slot in the center of the Radiating Patch, a dual band-notch function is achieved. Also, by inserting a V-shaped protruded in the ground plane, additional resonances are excited, and hence much wider impedance bandwidth can be produced, especially at the higher band. The measured results reveal that the presented dual band-notch monopole antenna offers a very wide bandwidth with two notched bands, covering all the 5.2/5.8-GHz WLAN, 3.5/5.5-GHz WiMAX and 4-GHz C-bands. The designed antenna has a small size area of 10 × 16 mm2, which has a size reduction of 35% with respect to the previous similar antenna.
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small modified monopole antenna for ultra wideband application with desired frequency band notch function
Iet Microwaves Antennas & Propagation, 2011Co-Authors: R Movahedinia, Mohammad Ojaroudi, S S MadaniAbstract:A novel printed monopole antenna for ultra-wideband applications with a frequency band-notch characteristic is presented. The proposed antenna consists of a stepped rectangular Radiating Patch and a modified ground plane that provides a wide usable fractional bandwidth of more than 120% (2.75–12.8 GHz). By cutting two rectangular slots with variable dimensions on the Radiating Patch, frequency band-stop performance is generated and we can control its characteristics such as band-notch frequency and bandwidth. The designed antenna has a small size of 12×20 mm2 while showing band rejection performance in the frequency band of 5.05–5.98 GHz.
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SMALL SEMI-CIRCLE-LIKE SLOT ANTENNA FOR ULTRA-WIDEBAND APPLICATIONS
Progress In Electromagnetics Research C, 2010Co-Authors: Farooq Amini, Mohammadnaghi Azarmanesh, Mohammad OjaroudiAbstract:In this paper, a small modifled circle-like slot antenna with modifled Radiating Patch, for UWB applications is proposed. The proposed antenna consists of a modifled Radiating Patch with novel notch and a semi-circle-like with a slope which provides a wide usable fractional bandwidth of more than 135% (3.07{16.26GHz). By optimizing the notched Radiating Patch, the total bandwidth of the antenna is greatly improved. The designed antenna has a small size of 27:5 £ 27:5mm 2 .
M. N. Shakib - One of the best experts on this subject based on the ideXlab platform.
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Optimization of Planar Monopole Wideband Antenna for Wireless Communication System.
PloS one, 2016Co-Authors: M. N. Shakib, Mahmoud Moghavvemi, Wan Nor Liza Binti Wan MahadiAbstract:In this paper, a new compact wideband monopole antenna is presented for wireless communication applications. This antenna comprises of a new Radiating Patch, a new arc-shaped strip, microstrip feed line, and a notched ground plane. The proposed Radiating Patch is combined with a rectangular and semi-circular Patch and is integrated with a partial ground plane to provide a wide impedance bandwidth. The new arc-shaped strip between the Radiating Patch and microstrip feed line creates an extra surface on the Patch, which helps further widen the bandwidth. Inserting one step notch on the ground plane further enhances the bandwidth. The antenna has a compact size of 16×20×1.6mm3. The measured result indicated that the antenna achieves a 127% bandwidth at VSWR≤2, ranging from 4.9GHz to 22.1GHz. Stable radiation patterns with acceptable gain are achieved. Also, a measured bandwidth of 107.7% at VSWR≤1.5 (5.1-17GHz) is obtained, which is suitable for UWB outdoor propagation. This antenna is compatible with a good number of wireless standards, including UWB band, Wimax 5.4 GHz band, MVDDS (12.2–12.7GHz), and close range radar and satellite communication in the X-band (8-12GHz), and Ku band (12-18GHz).
Naser Ojaroudi Parchin - One of the best experts on this subject based on the ideXlab platform.
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Compact Dual Band-Notched Monopole Antenna with Modified Radiating Patch for UWB Wireless Applications
Wireless Personal Communications, 2017Co-Authors: Mahmoud Bahmani, Jalil Mazloum, Naser Ojaroudi ParchinAbstract:Ultra-wideband (UWB) planar antennas with single or multiple notched frequency bands properties have recently been considered for various communications between wireless devices. In this study, a low profile microstrip monopole antenna with double band-filtering function is designed and investigated. FR-4 dielectric with properties of ε = 4.4 and δ = 0.02 has been employed as the antenna substrate. The configuration of the proposed design is composed of a modified fork-shaped Radiating Patch with inverted Ω-shaped slot and a pair of coupled Γ-shaped parasitic structures, a feed-line and a ground plane. The proposed dual band-notched UWB antenna provides good impedance bandwidth characteristic from 2.89 to 12.43 GHz for VSWR
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Compact Dual Band-Notched Monopole Antenna with Modified Radiating Patch for UWB Wireless Applications
Wireless Personal Communications, 2017Co-Authors: Mahmoud Bahmani, Jalil Mazloum, Naser Ojaroudi ParchinAbstract:Ultra-wideband (UWB) planar antennas with single or multiple notched frequency bands properties have recently been considered for various communications between wireless devices. In this study, a low profile microstrip monopole antenna with double band-filtering function is designed and investigated. FR-4 dielectric with properties of e = 4.4 and δ = 0.02 has been employed as the antenna substrate. The configuration of the proposed design is composed of a modified fork-shaped Radiating Patch with inverted Ω-shaped slot and a pair of coupled Γ-shaped parasitic structures, a feed-line and a ground plane. The proposed dual band-notched UWB antenna provides good impedance bandwidth characteristic from 2.89 to 12.43 GHz for VSWR
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compact dual band notched monopole antenna with modified Radiating Patch for uwb wireless applications
Wireless Personal Communications, 2017Co-Authors: Mahmoud Bahmani, Jalil Mazloum, Naser Ojaroudi ParchinAbstract:Ultra-wideband (UWB) planar antennas with single or multiple notched frequency bands properties have recently been considered for various communications between wireless devices. In this study, a low profile microstrip monopole antenna with double band-filtering function is designed and investigated. FR-4 dielectric with properties of e = 4.4 and δ = 0.02 has been employed as the antenna substrate. The configuration of the proposed design is composed of a modified fork-shaped Radiating Patch with inverted Ω-shaped slot and a pair of coupled Γ-shaped parasitic structures, a feed-line and a ground plane. The proposed dual band-notched UWB antenna provides good impedance bandwidth characteristic from 2.89 to 12.43 GHz for VSWR <2 with two notched bands which cover all the 5.2/5.8 GHz of WLAN, 3.5/5.5 GHz of WiMAX and 4-GHz of C bands ranges. The antenna provides good radiation behavior with sufficient gain levels over its operation frequency band.
