A Novel Compact Cylindrical Dielectric Resonator Antenna for Wireless Sensor Network Application

Chauhan, Monika; Pandey, Ajay Kumar; Mukherjee, Biswajeet

doi:10.1109/lsens.2018.2825369

Cited by 18 publications

(6 citation statements)

References 10 publications

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“…A slot is cut from the cuboid DR sheet using design Equations () and () 24 to excite the 9.4 GHz and 10.6 GHz frequencies. Reducing the volume of DR reduces its Q factor, thereby improving its operational bandwidth 25 . Perturbation theory is preferred for DR optimization (creating air slots in the proposed DR) because when we compare it with other methods to excite multiband from the DRA, this theory provides a lot of flexibility in antenna design to obtain a wide tuning range with enhanced gain 26 .…”

Section: C‐shaped Dielectric Resonator Antenna Design Procedures and ...mentioning

confidence: 99%

“C” shaped dual polarized dielectric resonator antenna for the microwave imaging of breast tumor using beam‐forming algorithms

Kaur

2022

Int J RF Mic Comp-Aid Eng

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In this article, an ultra‐wideband (UWB) monostatic radar based microwave imaging (MWI) approach is proposed to detect the presence and localize the position of breast tumor in women (usually greater than 45 years of age). For this purpose, a “C” shaped elliptically polarized DRA (dielectric resonator antenna) with an impedance bandwidth of 7.3 GHz (i.e., 3.4–10.7 GHz) covering the UWB has been proposed as a sensor to record the backscattered S parameter signals from the breast tissues. This is done by rotating the proposed DRA in monostatic radar configuration around the breast phantom with an interval of 30° in elevation (0–180) and azimuthal planes (0–360), respectively. The recorded “S” parameter data is then processed using beam‐forming algorithms namely delay and sum (DAS), improved delay and sum (IDAS), delay multiply and sum (DMAS) to form 2D images of the breast tumor and locate its position (using MATLAB R 2013a). The design and simulation of the entire set up that includes the C shaped UWB DRA & Bio media (breast phantom) is done using CST MWS V'17. The fabrication of the proposed DRA is carried out using wet etching and water jet cutting process. The physical model of the Bio media is prepared using gelatin (skin), petroleum‐jelly (fat), and wheat‐flour (tumor). The validation of antenna radiation parameters is done using a VNA (vector network analyzer) model no. E5063A and good agreement between the simulated and measured results is observed. The proposed C shaped DRA is used in a monostatic radar based configuration to collect “S” parameters and the data is processed in a GPU to reconstruct a 2D image of the scanned breast phantom area. The size and detected location of tumor using beam‐forming is also close to the actual physical location of tumor with an error of 6.2% from the actual tumor location.

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Section: C‐shaped Dielectric Resonator Antenna Design Procedures and ...mentioning

confidence: 99%

“C” shaped dual polarized dielectric resonator antenna for the microwave imaging of breast tumor using beam‐forming algorithms

Kaur

2022

Int J RF Mic Comp-Aid Eng

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“…To calculate the physical parameters of the cylindrical dielectric antenna, we first need to determine and calculate the resonant frequency of the antenna which is an important parameter of the antenna to design. The approximate calculation of this parameter for the TM 01δ mode and HEM 11δ mode can be expressed as follows [15,16]:…”

Section: System Configurationmentioning

confidence: 99%

Reconfigurable Polarization Mimo Dielectric Resonator Antenna

Rezvani¹,

Nikmehr²,

Pourziad³

2021

PIER M

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This paper introduces a reconfigurable polarization MIMO (Multi-Input Multi-Output) dielectric resonator antenna at a millimeter-wave frequency band. The proposed antenna consists of four single dielectric resonator antennas that are placed in configuration to form a MIMO antenna, and also this design is based on using the pin diode switching concept to control the antenna polarization. To modify the antenna structure for different polarizations, two pin diodes are used in the ground place of the MIMO antenna. The designed antenna operates at 4.35 GHz for polarization diversity applications of the modern wireless MIMO systems. The proposed antenna covers a bandwidth of 11.26% at the central frequency and provides circular and linear polarizations with a high gain of around 6.4 dB. The antenna performance in terms of reflection coefficient, gain, and axial ratio bandwidth in different modes (ON-ON, ON-OFF, OFF-ON, and OFF-OFF) is measured. The advantages of the designed antenna are simple structure (using two pin diode switches to modify antenna polarization), high gain, low profile, and light weight. According to the measurement and simulation results, the designed antenna displays good return loss and radiation performance. Using plexiglass as an antenna material which is very cheap and available in different dimensions is another advantage of the proposed antenna which reduces the fabrication cost.

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“…Much research has focused on cylindrical DRAs [28], [37]- [40]. In [38] and [39], the DRA device is used as sensors for wireless networks and liquid chemical detection applications, respectively. In these structures, the TM and quasi-TM modes can be excited by placing the dielectric disk on the ground plane [41].…”

Section: Characteristic Modes Descriptionsmentioning

confidence: 99%

Antenna for Ultra-Wideband Applications With Non-Uniform Defected Ground Plane and Offset Aperture-Coupled Cylindrical Dielectric Resonators

et al. 2019

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A new compact Cylindrical Dielectric Resonator Antenna (CDRA) with a defected ground for ultra-wideband applications is presented. The structure is based on two cylindrical dielectric resonators asymmetrically located with respect to the center of an offset rectangular coupling aperture, with consideration of three and four Dielectric Resonators (DR). The resonant modes generated by the defected ground are studied and investigated. A parametric optimization study of the antenna design has been carried out to determine the optimal dimensions of the defected ground plane, resulting in an impedance bandwidth of over 133% that covers the frequency band from 3.6 GHz to 18.0 GHz. A power gain of about 7.9 dBi has been achieved. Design details and measured and simulated results are presented and discussed. INDEX TERMS Cylindrical dielectric resonators antenna, ultra-wideband, defected ground structure.

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A Novel Compact Cylindrical Dielectric Resonator Antenna for Wireless Sensor Network Application

Cited by 18 publications

References 10 publications

“C” shaped dual polarized dielectric resonator antenna for the microwave imaging of breast tumor using beam‐forming algorithms

“C” shaped dual polarized dielectric resonator antenna for the microwave imaging of breast tumor using beam‐forming algorithms

Reconfigurable Polarization Mimo Dielectric Resonator Antenna

Antenna for Ultra-Wideband Applications With Non-Uniform Defected Ground Plane and Offset Aperture-Coupled Cylindrical Dielectric Resonators

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