A Compact CPW-fed Multiband Bow-tie Slot Antenna for IoT Smart Healthcare Wireless Communication Applications

Dayo, Zaheer Ahmed; Aamir, Muhammad; Dayo, Shoaib Ahmed; Rahman, Ziaur; Khoso, Imran A.; Shah, Gulab; Soothar, Permanand; Hu, Zhihua; Guan, Yurong

doi:10.1109/vtc2022-spring54318.2022.9860542

Cited by 2 publications

(2 citation statements)

References 22 publications

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“…In the past five years, researchers have proposed various strategies and have modified slot antenna designs to attain broad impedance bandwidth and high gain features. These approaches have mainly focused on different feeding networks [ 15 , 16 , 17 , 18 , 19 , 20 , 21 ], defected ground structures (DGS) [ 22 , 23 , 24 ], artificial magnetic conductors (AMC) loaded lattice [ 25 ] and the etching of cut slits from radiators [ 26 , 27 , 28 , 29 ]. However, few of these compact and low profile antenna design structures were capable of covering a broad bandwidth at 5G mm-Wave frequency range.…”

Section: Introductionmentioning

confidence: 99%

A New CPW-Fed Semicircular Inverted Triangular Shaped Antenna Based on Mixed-Alternate Approach for 5G Millimeter-Wave Wireless Applications

et al. 2023

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This paper presents the design and development of a new semicircular inverted triangular shaped antenna for 5G millimeter-wave wireless applications. An alternate-mixed approach based on cavity, slots and loaded stubs is employed in the designed antenna lattice. The suggested antenna structure is formed by a radiator, partial defected metal ground plane and a 50 Ω coplanar waveguide. The proposed antenna resonated at multiple frequencies by the setting up of the proper dimensions and locations of the rectangles, elliptical cut slots and cavity stubs. Furthermore, a parametric analysis is carried out to examine the antenna’s effectiveness and impedance-matching controls. The proposed structure is realized on the low-cost RT/Duroid Rogers RO3010™ laminate with an overall small size of 1.381λ0 × 1.08λ0 × 0.098λ0, where λ0 represents the wavelength corresponding to the minimum edge frequency of the 23 GHz at 10 dB impedance bandwidth of the antenna. The antenna’s key characteristics in terms of bandwidth, gain, radiation patterns and current distribution have been investigated. The antenna exhibits high performance, including an impedance bandwidth of 19 GHz ranging from 23 GHz to 42 GHz, results in 58.46% wider relative bandwidth calculated at 10 dB scaled return loss, a peak realized gain of 6.75 dBi, optimal radiation efficiency of 89%, stable omnidirectional-shaped radiation patterns and robust current distribution across the antenna structure at multiple resonances. The designed antenna has been fabricated and simulation experiments evaluated its performance. The results demonstrate that the antenna is appropriate and can be well integrated into 5G millimeter-wave wireless communication systems.

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Section: Introductionmentioning

confidence: 99%

A New CPW-Fed Semicircular Inverted Triangular Shaped Antenna Based on Mixed-Alternate Approach for 5G Millimeter-Wave Wireless Applications

et al. 2023

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“…For example, the method uses 1 to 11 GHz frequencies to image the breast [ 11 , 12 ], whereas 1 to 4 GHz frequency bands are used to reconstruct the image of the human head [ 16 , 17 ]. Additionally, multiband operating frequencies could reach 16 GHz for an internet of things in smart healthcare applications [ 18 ]. On the other hand, tomography-based algorithms typically use a single frequency to reconstruct the dielectric properties of the imaged domain [ 19 , 20 ]; however, recent tomography algorithms use multiple frequencies [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Slotted Monopole Patch Antenna for Microwave-Based Head Imaging Applications

Alqahtani

Islam

Talukder

et al. 2022

Sensors

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A modified monopole patch antenna for microwave-based hemorrhagic or ischemic stroke recognition is presented in this article. The designed antenna is fabricated on a cost-effective FR-4 lossy material with a 0.02 loss tangent and 4.4 dielectric constant. Its overall dimensions are 0.32 λ × 0.28 λ × 0.007 λ, where λ is the lower bandwidth 1.3 GHz frequency wavelength. An inset feeding approach is utilized to feed the antenna to reduce the input impedance (z = voltage/current). A total bandwidth (below −10 dB) of 2.4 GHz (1.3–3.7 GHz) is achieved with an effective peak gain of over 6 dBi and an efficiency of over 90%. A time-domain analysis confirms that the antenna produces minimal signal distortion. Simulated and experimental findings share a lot of similarities. Brain tissue is penetrated by the antenna to a satisfactory degree, while still exhibiting a safe specific absorption rate (SAR). The maximum SAR value measured for the head model is constrained to be equal to or below 0.1409 W/kg over the entire usable frequency band. Evaluation of theoretical and experimental evidence indicates the intended antenna is appropriate for Microwave Imaging (MWI) applications.

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A Compact CPW-fed Multiband Bow-tie Slot Antenna for IoT Smart Healthcare Wireless Communication Applications

Cited by 2 publications

References 22 publications

A New CPW-Fed Semicircular Inverted Triangular Shaped Antenna Based on Mixed-Alternate Approach for 5G Millimeter-Wave Wireless Applications

A New CPW-Fed Semicircular Inverted Triangular Shaped Antenna Based on Mixed-Alternate Approach for 5G Millimeter-Wave Wireless Applications

Slotted Monopole Patch Antenna for Microwave-Based Head Imaging Applications

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