All-Textile Corrugated Ground SIW Horn Antenna for Millimeter-Wave WBAN Applications

Lee, Seongkyu; Choi, Jaehoon

doi:10.26866/jees.2019.19.4.221

Cited by 8 publications

(3 citation statements)

References 14 publications

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“…These highpower jamming systems require phase array antennas with broadband characteristics, since the various target RF devices typically operate in multiple frequency bands. In previous studies, efforts have been made to improve the operating frequency bandwidth of antennas by applying various structures, such as a horn antenna integrated with a substrate board [5], [6], spiral antennas based on a hybrid backed-cavity [7], [8], and a microstrip patch antenna with an L-shaped indirect feed [9], [10]. Although these antennas can achieve the broadband characteristics, the element antenna size is too large to extend to an array antenna.…”

Section: Introductionmentioning

confidence: 99%

Design of a Dual-Polarization All-Metal Vivaldi Array Antenna Using a Metal 3D Printing Method for High-Power Jamming Systems

et al. 2023

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This paper proposes an all-metal Vivaldi array antenna with a wide-angle impedance matching (WAIM) layer for high-power jamming systems. To reduce fabrication complexity and time, the proposed array antenna is manufactured using a metal 3D printing method. The Vivaldi unit cell, composed of a radiating flare part and an inner cavity, is extended into an 8 × 8 array with a ±45° slant configuration. To further enhance the beam steering angle, the WAIM layer is placed on top of the proposed array antenna. The performances of the proposed array antenna, such as its active reflection coefficients (ARC), gains, and array radiation patterns, are investigated in a full anechoic chamber. At a steering angle of (0 = 45°, 0 = 25°), the measured and simulated average ARCs of the center element (Port 36) with the WAIM layer are -13.2 dB and -18.5 dB, respectively. At 4 GHz, the measured and simulated bore-sight gains of the proposed array antenna are 19 dBi and 20.6 dBi, respectively. In addition, the measured and simulated bore-sight gains for the (0 = 45°, 0 = 0°) steering angle in the zx-plane are 18 dBi and 21 dBi, respectively. In the zy-plane, bore-sight gains for the (0 = 45°, 0 = 0°) steering angle are 19.3 dBi by measurement and 19.1 dBi by simulation. These results demonstrate that the proposed array antenna is suitable for highpower jamming systems because stable bore-sight gains are observed even at wide steering angles without unwanted grating lobes.INDEX TERMS High-power jamming systems, 3D printing, all-metal Vivaldi array, unit cell array, wide angle impedance matching

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Section: Introductionmentioning

confidence: 99%

Design of a Dual-Polarization All-Metal Vivaldi Array Antenna Using a Metal 3D Printing Method for High-Power Jamming Systems

et al. 2023

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“…The wearable technology is an area which is gaining a huge response from the recent decades. The SIW applications have its footprints in the wearable domain of Wireless Body area networks (WBAN) [7], [8]. SIW cavity based diplex antenna with hybrid half mode configuration is used in the on body transceiver [9] with a considerably low SAR value for wearable applications.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of CompactSubstrate-Integrated Waveguide (SIW)Cavity Resonator Based MicrofluidicBiosensor for X-Band Applications

Saranya¹,

Sharmila²,

Jeyakumar³

et al. 2022

Preprint

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Biosensors are compact miniaturized devices to measure the biologicalsamples based on the molecular structure and convert the sameto electronic signals. The substrate Integrated Waveguide (SIW) cavitybased resonators loaded with a circular cavity can be used as a biosensorin a non invasive manner to detect the biological tissues in the sample with better efficiency and miniaturized structure.The biosensingsamples may vary from proteins to enzymes which has gained ahuge response in the industries likes medical, agriculture, food processingindustry and many more over the decades. The substrate materialof antenna is designed with Rogers RT/Duroid 5870 which has thedielectric constant of 2.33. The Rectangular patch antenna is thenloaded with the SIW vias for an enhanced performance of S parameterfrom -17.21 dB to -44.88dB operating at the X band (8 to 12GHz) frequencies. The microwell made from the Polydimethylsiloxane(PDMS) material is inserted into the patch infrom of circularslot to achieve the biosensing application. The microwell based SIWcavity is then simulated for different diameters of PDMS to improvethe S11 parameter and Voltage standing wave ratio. The fabricatedantenna is tested to work in the TE110 mode at a resonant frequencyof 12.12GHZ with a improved return loss characteristics of -42.45 dB

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“…More recently, thin films are widely employed in electromagnetic applications such as antennas or radomes. For instance, multi-layered or nano-structured thin films were used to implement flexible and wearable antennas with an improvement of radiation gain and efficiency [1][2][3]. For an electromagnetic radome, thin films are not only used for a protecting layer (e.g.…”

Section: Introductionmentioning

confidence: 99%

Dielectric property characterisation of thin films based on iterative comparisons of full-wave simulations and measurements

Nov

Chung

2020

IET Science, Measurement &Amp; Technology

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A new research on characterising the dielectric constant and loss tangent of thin-film material with a convenient technique based on simulation is proposed. The authors utilise a set of full-wave electromagnetic simulation data to retrieve the dielectric properties from the measured data. More specifically, a set of simulation data is collected from a commercial full-wave simulator (Ansys HFSS) by solving the electromagnetic model the same as the measurement set-up which employs a grounded coplanar waveguide with a thin film placed on the top surface. The measured transmission coefficients (S21) are iteratively compared with its simulation data to estimate the dielectric constant and loss tangent using an efficient comparison algorithm. For adaptive data acquisitions and comparisons, they have developed a MATLAB code using hfss-matlab-toolbox that makes the whole process quick and automatic. They have successfully retrieved the dielectric properties of four different sprayed thin films at 8, 10, and 12 GHz, and observed that the dielectric constant and loss tangent strongly depends on their compositions, thickness, and frequency.

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All-Textile Corrugated Ground SIW Horn Antenna for Millimeter-Wave WBAN Applications

Cited by 8 publications

References 14 publications

Design of a Dual-Polarization All-Metal Vivaldi Array Antenna Using a Metal 3D Printing Method for High-Power Jamming Systems

Design of a Dual-Polarization All-Metal Vivaldi Array Antenna Using a Metal 3D Printing Method for High-Power Jamming Systems

Design and Analysis of CompactSubstrate-Integrated Waveguide (SIW)Cavity Resonator Based MicrofluidicBiosensor for X-Band Applications

Dielectric property characterisation of thin films based on iterative comparisons of full-wave simulations and measurements

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