Dual-Band Antipodal Vivaldi Antenna for Wireless Neural Monitoring Applications

Gopavajhula, Suryach; Kumar, Sandeep; Narasimhadhan, A. V.

doi:10.1109/icraie51050.2020.9358367

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…This antenna was modelled and simulated in CST Microwave Studio software. The design of the inner and outer tappers edge of the antenna is defined in [17] [20]. The total dimensions (i.e., substrate dimensions, SL × SW × ST) are 33×33×0.4 mm 3 .…”

Section: Antenna Design and Parametersmentioning

confidence: 99%

“…[16][17]. In previous literatures, most of the antipodal Vivaldi antenna (AVA) designs are proposed on FR4 [16][17] [18][19] [20], Rogers [17][21], and Taconic TLT [21] substrate for applications such as ultrawide band (UWB) communications [16][17], wireless communications [20], satellite [16], breast cancer detection [19], microwave and millimeter wave imaging [19] [21], and Wi-MAX [22]. Nevertheless, despite being wideband and highly efficient, it is found that these AVA designs are large in dimensions, limiting their capability for wearable 5G antenna applications for compact devices.…”

Section: Introductionmentioning

confidence: 99%

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Compact Wideband Wearable Antipodal Vivaldi Antenna for 5G Applications

Sahoo

Al‐Hadi

Azemi

et al. 2022

2022 IEEE International RF and Microwave Conference (RFM)

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In this paper, a compact wearable antipodal Vivaldi antenna resonating at 3.5 GHz is proposed for 5G n77 and n78 bands. It is designed on a flexible polyester substrate with a dielectric constant (ɛr) of 2 and loss tangent (tan δ) of 0.005. The antenna parameters were optimized via parametric analyses using CST software with a size of 33 × 33 mm 2 (length × width). The antenna is evaluated in terms of reflection coefficient (S11), gain, efficiency, radiation pattern and surface current density and itsreflection coefficient is verified with measurement. This antenna attained a maximum simulated gain of 4.17 dBi and an efficiency of 98.18 % in the resonating band.

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Section: Antenna Design and Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compact Wideband Wearable Antipodal Vivaldi Antenna for 5G Applications

Sahoo

Al‐Hadi

Azemi

et al. 2022

2022 IEEE International RF and Microwave Conference (RFM)

View full text Add to dashboard Cite

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Ultra-Wideband Circular Polarized Implantable Patch Antenna for Implantable Blood Glucose Detection System Applications

Song,

2024

Sensors

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To address the current demands for antenna miniaturization, ultra-bandwidth, and circular polarization in advanced medical devices, a novel ISM band implantable antenna for blood glucose monitoring has been developed. This antenna achieves miniaturization by incorporating slots in the radiation patch and adding symmetric short-circuit probes, resulting in a compact size of only 0.054λ0 × 0.054λ0 × 0.005λ0 (λ0 is the wavelength in free space in respect of the lowest working frequency). By combining two resonance points and utilizing a differential feed structure, the antenna achieves ultra-broadband and circular polarization. Simulations indicate a |S11| bandwidth of 1.1 GHz (1.65–2.75 GHz) and an effective axial ratio (based on 3 dB axis ratio) bandwidth of 590 MHz (1.89–2.48 GHz), able to cover both the ISM frequency band (2.45 GHz) and the mid-field frequency band (1.9 GHz). The antenna exhibits CP gains of −20.04 dBi at a frequency of 2.45 GHz, while it shows gains of −24.64 dBi at 1.9 GHz. Furthermore, a superstrate layer on the antenna’s radiating surface enhances its biocompatibility and minimizes its impact on the human body. Simulation and experimental results indicate that the antenna can establish a stable wireless communication link for implantable continuous blood glucose monitoring systems.

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Dual-Band Antipodal Vivaldi Antenna for Wireless Neural Monitoring Applications

Cited by 2 publications

References 13 publications

Compact Wideband Wearable Antipodal Vivaldi Antenna for 5G Applications

Compact Wideband Wearable Antipodal Vivaldi Antenna for 5G Applications

Ultra-Wideband Circular Polarized Implantable Patch Antenna for Implantable Blood Glucose Detection System Applications

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