A compact low-profile ultra wideband antenna for biomedical applications

Ahmed, Foez; Hasan, Nisab; Chowdhury, Md. Halim Miah

doi:10.1109/ecace.2017.7912885

Cited by 18 publications

(7 citation statements)

References 5 publications

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“…In addition, time domain characteristic of the antenna without band-notched filter is analyzed by CST Microwave Studio. For this simulation, antennas are placed in the far field region (face to face and side by side), and the transmitter antenna is excited by a Gaussian signal (3)(4)(5)(6)(7)(8)(9)(10)(11). The received and transmitted signals are shown in Fig. 14.…”

Section: Measurement and Simulation Resultsmentioning

confidence: 99%

“…9 shows that by subtracting two circular apertures from the ground plane, H-plane radiation pattern of antenna (e) is more omnidirectional and in wider frequency range than antenna (d). Also, bandwidth of the modified antenna is much wider than that mentioned and other antennas in references [3][4][5][6][7][8][9]. Furthermore, the antenna has a variable band-notched filtering feature.…”

Section: Radiation Patternsmentioning

confidence: 98%

“…In 2002, Federal Communications Commission (FCC) assigned frequency band 3.1-10.6 GHz for ultra-wideband (UWB) systems [1]. Some UWB systems and their applications have been introduced in references like [2][3][4][5][6][7]. Also, on July 14, 2016, the US Federal Communications Commission (FCC) adopted new rules for wireless broadband operations above 24 GHz, making the U.S. the first country to make this spectrum available for next generation wireless services.…”

Section: Introductionmentioning

confidence: 99%

“…The second chart lists the FR2 frequency bands of interest. The FCC has also opened up spectrum from 64 GHz to 71 GHz for future activity [6][7][8][9]. As we know, wireless sensor networks like zigbee, LDWA, LoRa, WWAN, and mobile radio networks comprising 2G, 3G, 4G, and coming 5G need wider frequency bandwidth, data processing, and machine learning for optimum performance.…”

Section: Introductionmentioning

confidence: 99%

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A Small Cost-Effective Super Ultra-Wideband Microstrip Antenna With Variable Band-Notch Filtering and Improved Radiation Pattern With 5g/Iot Applications

Oskouei¹,

Dastkhosh²,

Mirtaheri³

et al. 2019

PIER M

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In this work, a new design of small microstrip antenna with variable band-notched filtering characteristic for super ultra-wideband (UWB) applications including 5G/IoT networks is presented. In the proposed structure by creating steps with optimized appropriate sizes and angles in the lower edges of the quasi-square patch antenna and by a new technique of modifying the ground plane, more efficient radiation patterns and characteristic impedance are achieved. Moreover, the omnidirectional low cross-polarized H-plane radiation patterns are obtained in frequency band of 3-11 GHz. Also, its radiation patterns are improved between 11 and 14.5 GHz and have better performance especially with tuning capacitors between 14.5 and 20 GHz. In addition, its frequency bandwidth with VSWR < 2 is from 3 GHz to 50 GHz which covers 5G networks and both ultra-wideband (UWB) and super wideband (SWB) communications. A rectangular slot on the patch is used to create an integrated band-notch filter in the structure to avoid interference with other wireless systems like wireless local area networks (WLANs), and this specification can be activated or deactivated by a PIN diode. In addition, the center frequency of the filter can be tuned by just a varactor diode or a variable capacitor and/or by changing the position of the capacitors in frequency range of about 3.5-6 GHz, which rejects interference of all WLANs and even their lower and upper bands, and nulls in the radiation patterns can be changed especially in upper bands as well. The final structure simulation results are in good agreement with measurement ones.

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Section: Measurement and Simulation Resultsmentioning

confidence: 99%

Section: Radiation Patternsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Small Cost-Effective Super Ultra-Wideband Microstrip Antenna With Variable Band-Notch Filtering and Improved Radiation Pattern With 5g/Iot Applications

Oskouei¹,

Dastkhosh²,

Mirtaheri³

et al. 2019

PIER M

View full text Add to dashboard Cite

show abstract

“…However, they tend to produce bidirectional radiation characteristics [26]. The unidirectional characteristic of antennas is crucial in MWI despite increasing the complexity of antenna design, as bidirectional antennas increase the possibility of environmental interference and false detections at the receiver terminals when used for MWI [27]. To improve the directional properties in conventional planar monopoles, several techniques have been proposed, including incorporating reflecting elements, adding cavities or shielding planes behind the main radiator, and using absorbent materials.…”

Section: Introductionmentioning

confidence: 99%

Directional Wideband Wearable Antenna with Circular Parasitic Element for Microwave Imaging Applications

Koma'rudin¹,

Zakaria²,

Althuwayb³

et al. 2022

Computers, Materials &Amp; Continua

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This work proposes a wideband and unidirectional antenna consisting of dual layer of coplanar waveguide based on the circular parasitic element technique. The design procedure is implemented in three stages: Design A, which operates at 3.94 GHz with a bandwidth of 3.83 GHz and a fractional bandwidth (FBW) of 97.2%; Design B, which operates at 3.98 GHz with a bandwidth of 0.66 GHz (FBW of 56.53%); and Design C as the final antenna. The final Design C is designed to resonate at several frequencies between 2.89 and 7.0 GHz for microwave imaging applications with a bandwidth of 4.11 GHz (79.8%) centered at 5.15 GHz. This antenna is fabricated fully using two textile materials: felt as the substrate and ShieldIt as the conductor. It features a unidirectional radiation with a gain of 5.5 dBi, and reduced low back radiation from 2.06 to−7.81 dB. The front-to-back ratio (FBR) for Design A, Design B and Design C are 4.82, 2.94 and 11.36 dB, respectively. This antenna is wideband with unidirectional radiation, lightweight, and flexible.

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Design and Analysis of Wideband Antenna for Biomedical Purposes

Chaubey

Srikant

2020

Internet of Things and Big Data Applications

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A compact low-profile ultra wideband antenna for biomedical applications

Cited by 18 publications

References 5 publications

A Small Cost-Effective Super Ultra-Wideband Microstrip Antenna With Variable Band-Notch Filtering and Improved Radiation Pattern With 5g/Iot Applications

A Small Cost-Effective Super Ultra-Wideband Microstrip Antenna With Variable Band-Notch Filtering and Improved Radiation Pattern With 5g/Iot Applications

Directional Wideband Wearable Antenna with Circular Parasitic Element for Microwave Imaging Applications

Design and Analysis of Wideband Antenna for Biomedical Purposes

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