Optical spherical dielectric resonator antenna for sensing and wireless communication

Frequenz ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Rajveer S. Yaduvanshi ◽  
Rama Krishna Yadav ◽  
Saurabh Katiyar ◽  
Suresh Kumar ◽  
Harish Parthasarathy
Keyword(s):  
Wireless Communication ◽  
Dielectric Resonator ◽  
Optical Design ◽  
Mathematical Formulation ◽  
Optical Frequency ◽  
Wireless Sensing ◽  
Dielectric Resonator Antenna ◽  
Retinal Photoreceptor ◽  
First Time ◽  
Beam Excitation

AbstractIn this article, Terahertz spherical dielectric resonator antenna (DRA) is mathematically formulated and simulated at 511 THz for LiDAR and retinal photoreceptor applications. Titanate DR element is used at optical design frequency. It is validated with good S11, radiation pattern and 5.6 dBi gain plots using HFSS simulator. Unique mathematical formulation on super directivity and radiated states is formulated for the first time. The proximity coupled feed is used with laser Gaussian beam excitation. The silver nano waveguides is used to provide feed mechanism to terahertz DRA. This DR design at optical frequency can be used for wireless sensing and communication applications. It has novel geometry.

scholarly journals Spherical Dielectric Resonator Antenna for 5G Application

2021 ◽  
Author(s):  
Ashok kumar ◽  
Rajveer Singh Yaduvanshi
Keyword(s):  
Wireless Networks ◽  
Wireless Communication ◽  
Theoretical Analysis ◽  
Dielectric Resonator ◽  
Communication Systems ◽  
Return Loss ◽  
Wireless Communication Systems ◽  
Dielectric Resonator Antenna ◽  
Good Match ◽  
Good For

Abstract In this article Spherical DRA has been formulated , simulated and proto type developed. The detailed theoretical analysis along with simulations and measured results at 5.8 GHz have been presented in this article. The SDRA at 5.8 GHz covering 5G frewuenci band. The proposed design antenna provides the gain of 7.3 dB and return loss -25 dB. The measured results are in good match with simulated result. The proposed SDRA are good for 5G wireless networks, as well as other sub-6 band in wireless communication systems.

scholarly journals A Dual Frequency Dielectric Resonator Antenna for Wireless Communication Applications

2019 ◽  
Vol 9 (1S5) ◽  
pp. 99-102
Keyword(s):  
Wireless Communication ◽  
Dielectric Resonator ◽  
Dielectric Material ◽  
Low Cost ◽  
Ground Plane ◽  
Strip Line ◽  
Dielectric Resonator Antenna ◽  
Dual Frequency ◽  
Rectangular Slot ◽  
High Dielectric

A dual frequency Dielectric Resonator antenna for wireless communication applications in the S and C bands with an operating frequency of 2.65GHz and 4.62GHz is presented. The patch is a dielectric material with a high dielectric constant value of 20. A 50Ω strip line is considered as feed and is coupled to the dielectric radiator via the rectangular slot etched in ground plane. The slot etched in ground plane is made so as to facilitate the power form the feed line to the radiator. The overall dimension of the antenna is 100mm×35mm×0.8mm. A dual frequency antenna has been proposed which will be operational at the frequencies of 2.65GHz and 4.62GHz with a gain of 4.42dB and 7.78dB respectively. Low cost FR4 material is been used as the laminate base for the antenna which will act as the dielectric material.

scholarly journals Three-Dimensional Dual-Band Dielectric Resonator Antenna for Wireless Communication

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 71593-71604
Author(s):  
Shailesh Mishra ◽  
Sushrut Das ◽  
Shyam Sundar Pattnaik ◽  
Sachin Kumar ◽  
Binod Kumar Kanaujia
Keyword(s):  
Wireless Communication ◽  
Dielectric Resonator ◽  
Three Dimensional ◽  
Dual Band ◽  
Dielectric Resonator Antenna

scholarly journals Analysis of an Inhomogeneous Circularly Polarized Hollow Dielectric Resonator Antenna Using Perturbation Theory

Electronics ◽  
2021 ◽  
Vol 10 (18) ◽  
pp. 2273
Author(s):  
Neetu Sehrawat ◽  
Binod Kanaujia ◽  
Anshul Agarwal ◽  
Gaurav Varshney
Keyword(s):  
Experimental Data ◽  
Perturbation Theory ◽  
Dielectric Resonator ◽  
Axial Ratio ◽  
Simple Expression ◽  
Perturbation Approach ◽  
Dielectric Resonator Antenna ◽  
Circularly Polarized ◽  
Degenerate Modes ◽  
First Time

The perturbation approach is presented here for the first time for the analysis of an inhomogeneous circularly polarized rectangular dielectric resonator (DR) antenna (DRA). The inhomogeneous permittivity is created by perturbing a rectangle-shaped region of different material inside the rectangular dielectric resonator antenna (RDRA). The orthogonal degenerate modes with a phase difference of 90°, TE111x and TE111y, are excited simultaneously for achieving circular polarization. A simple expression for the calculation of the resonant frequency and optimal axial ratio point for a circularly polarized (CP) inhomogeneous RDRA is presented here. Theoretical results obtained from the proposed theory are compared with theoretical, simulated, and experimental data available in the literature. The proposed analysis results show optimal axial ratio point calculations within a 1% range of the simulated and experimental data, which is better than the previous transverse transmission line reported method, having an error of approximately 4%. The advantages, accuracy, and simplicity of perturbation theory for DR are discussed in detail. The proposed theory can be easily extended for higher order modes and other shapes of material perturbation and anisotropic DRAs. The proposed technique will help in incorporation of the perturbation in the DR so that CP radiation can be obtained in an easy way.

N-Shape Dielectric Resonator Antenna for Wireless Communication

2016 ◽  
Vol 5 (1) ◽  
pp. 23
Author(s):  
GUPTA ROSHNI ◽  
SINGH MANGAL ◽  
SOREN DIPALI ◽  
◽  
◽  
...  
Keyword(s):  
Wireless Communication ◽  
Dielectric Resonator ◽  
Dielectric Resonator Antenna

High gain broadside mode operation of a cylindrical dielectric resonator antenna using simple slot excitation

2020 ◽  
pp. 1-9
Author(s):  
Anuj Kumar Ojha ◽  
A. V. Praveen Kumar
Keyword(s):  
Dielectric Resonator ◽  
High Gain ◽  
Dielectric Resonators ◽  
Simulation Studies ◽  
Dielectric Resonator Antenna ◽  
Height Ratio ◽  
Approximate Design ◽  
Detailed Simulation ◽  
First Time ◽  
Prototype Measurement

Abstract In this work, the authors report the operation of a cylindrical dielectric resonator antenna (CDRA) in the high gain HEM13 δ mode, for the first time. This mode, excited with a standard microstrip slot, radiates in the broadside direction with gain in the range of 8−10 dBi. It is shown that through feed optimization, the HEM13 δ mode can be excited dominantly by suppressing the fundamental HEM11 δ mode of the CDRA. Detailed simulation studies show that the HEM13 δ mode is supported by cylindrical dielectric resonators with an aspect ratio (radius to height ratio or a/d) >1, and it resonates at a frequency approximately 2.2 times that of the fundamental HEM11 δ mode. The above features of the HEM13 δ mode CDRA can be used as approximate design rules. For a CDRA with dielectric constant ɛr = 24, diameter 2a = 19.43 mm, and height d = 7.3 mm (a/d = 1.3), the HEM13 δ mode is excited at 6.125 GHz with a peak gain of 10.14 dBi in simulation. Corresponding values from prototype measurement are 5.981 GHz and 9.62 dBi, respectively for the resonant frequency and the gain, verifying the simulation.

scholarly journals Wideband Cylindrical Dielectric Resonator Antenna Operating in HEM11δ Mode with Improved Gain: A Study of Superstrate and Reflector Plane

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Sounik Kiran Kumar Dash ◽  
Taimoor Khan ◽  
Binod Kumar Kanaujia ◽  
N. Nasimuddin
Keyword(s):  
Dielectric Resonator ◽  
Impedance Matching ◽  
Wide Band ◽  
High Gain ◽  
Dielectric Resonator Antenna ◽  
Gain Enhancement ◽  
Transparent Dielectric ◽  
Single Side ◽  
X Band ◽  
First Time

A wideband and high gain dielectric resonator antenna (DRA) operating in hybrid HEM11δ mode is proposed. The investigated geometry employs one cylindrical dielectric resonator partially covered with a transparent dielectric superstrate and backed up by a single side metal coated dielectric reflector plane. The reflector is dedicated for gain enhancement while the superstrate is employed for merging of two resonant bands resulting in a single wide band. The dielectric resonator is excited by simple microstrip feed slot coupling technique and operates over X-band, ranging from 7.12 GHz to 8.29 GHz, that is, of 15.18% impedance matching bandwidth with 11.34 dBi peak gain. The different development stages like standalone DRA, DRA with superstrate, DRA with reflector, and DRA with both superstrate and reflector plane with respect to bandwidth and gain performances are analyzed properly. To the best of authors’ knowledge, this is the first time this type of combination of both superstrate and reflector plane is demonstrated in DRA engineering. An antenna prototype was fabricated and characterized and a very good agreement is achieved between the simulated and measured results.

scholarly journals Dielectric Resonator Rectenna System using Full Wave Rectification Configuration

2020 ◽  
Vol 9 (5) ◽  
pp. 279-283
Keyword(s):  
Wireless Communication ◽  
Parametric Study ◽  
Dielectric Resonator ◽  
Fractional Part ◽  
Input Power ◽  
Dielectric Resonator Antenna ◽  
Full Wave ◽  
Harvesting Systems ◽  
Rf Energy ◽  
Day By Day

With the wireless communication advances in the recent years, the level of RF energy present in the environment rises day by day. Only fractional part of RF energy presented is used, on contra, the remaining RF energy is the wastage in the form of waves that become challenging issue to harvest. Here, one of the RF harvesting systems known as Rectenna is implemented. Star shaped Dielectric Resonator Antenna (DRA) is used as receiver to collect RF energy at ISM frequency band (2.45 GHz) from atmosphere. The received RF energy is fed to Full wave rectifier circuit. The parametric study shows the 24.733 dBm power is harvested for 30 dBm input power is fed. The maximum 81.67 % RF to DC conversion efficiency is achieved.

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