Design and Fabrication of High Gain Multi-element Multi-segment Quarter-sector Cylindrical Dielectric Resonator Antenna

Ranjan, Pinku; Gangwar, Ravi Kumar

doi:10.1515/freq-2016-0353

Cited by 6 publications

(9 citation statements)

References 21 publications

(34 reference statements)

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“…So different techniques have been proposed to enhance the gain as per the requirement. For ease of classification, the available literature is divided into two categories: only gain improvement and simultaneous gain and bandwidth improvement . The categories are described here.…”

Section: Dras Research On Gain Improvementmentioning

confidence: 99%

“…As per literature, the DR‐antenna shape has much impact on controlling the far‐field gain. First, the shape of the DR has been found to be playing crucial role in enhancing the antenna gain. Next, multiple stacking generates more radiation from side walls of the DR than top side enabling high gain in end‐fire direction.…”

Section: Dras Research On Gain Improvementmentioning

confidence: 99%

“…In previous section, different techniques have been described for gain improvement. The research on simultaneous gain and bandwidth improvement is also quite interesting which is summarized here .…”

Section: Dras Research On Gain Improvementmentioning

confidence: 99%

“…As per literature, the DR-antenna shape has much impact on controlling the far-field gain. First, the shape of the DR [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] has been found to be playing FI GU RE 1 Different geometrical shapes of DR antennas 3 FI GU RE 2 Smart-art illustration of DRAs based on only gain crucial role in enhancing the antenna gain. Next, multiple stacking generates more radiation from side walls of the DR than top side enabling high gain in end-fire direction.…”

Section: Research On Gain Improvementmentioning

confidence: 99%

“…Recently, Dash et al have proposed a one‐side copper coated dielectric reflector for abrupt gain enhancement of 101.48% (up to 10.84 dB) of a cylindrical DRA. Ranjan and Gangwar have designed a multielement and multisegmented quarter sectored DRA for achieving high gain of 6.65 dBi.…”

Section: Dras Research On Gain Improvementmentioning

confidence: 99%

See 4 more Smart Citations

A state-of-art review on performance improvement of dielectric resonator antennas

Dash

Khan

Antar

2018

Int J RF Microw Comput Aided Eng

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This article outlines a compressive review on investigation carried out targeting to gain, circular polarization (CP), and mutual coupling reduction in dielectric resonator antenna (DRA). The DRA has already been created a separate position in antenna engineering domain because of its adept characteristics, such as wide bandwidth, high efficiency, low‐loss, and mainly 3D‐design flexibility which is rarely available in conventional antennas. In this context, the research on gain, circular polarization, and mutual coupling are quite interesting and being carried out from the last two decades. The ultimate aim of this article is to (i) give an overview of different techniques adopted in context to gain, CP, and mutual coupling reduction; (ii) give a compressive review of notable research carried out targeting to these three characteristics; and (iii) find out the research gap concentration for furtherance of the same.

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Section: Dras Research On Gain Improvementmentioning

confidence: 99%

Section: Dras Research On Gain Improvementmentioning

confidence: 99%

Section: Dras Research On Gain Improvementmentioning

confidence: 99%

Section: Research On Gain Improvementmentioning

confidence: 99%

Section: Dras Research On Gain Improvementmentioning

confidence: 99%

See 3 more Smart Citations

A state-of-art review on performance improvement of dielectric resonator antennas

Dash

Khan

Antar

2018

Int J RF Microw Comput Aided Eng

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Design and Optimization of Dual Port Dielectric Resonator Based Frequency Tunable MIMO Antenna with Machine Learning Approach for 5G New Radio Application

Rai,

Ranjan,

Chowdhury

et al. 2024

Int J Communication

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SummaryIn this article, a dual port Multiple Input Multiple Output (MIMO) cylindrical Dielectric Resonator (DR)‐based frequency tunable antenna with a machine learning (ML) approach for a 5G New Radio (NR) application is presented. According to the author's best knowledge, it is the first time‐frequency tunable MIMO hybrid DR with ML is reported. A dual port MIMO DRA is placed in the orthogonal configuration with the connected ground to obtain higher isolation in the entire frequency range. The proposed dual port antenna provides a total spectrum (TS) and tuning range (TR) of 98.99% and 80.93%, respectively. The different MIMO parameters, Envelope Correlation Coefficient (ECC), Total Active Reflection Coefficient (TARC), and Diversity Gain (DG) are investigated and found within the acceptable limits. The optimization of the proposed dual port tunable antenna is done through the various ML algorithms, including Artificial Neural Network (ANN), K‐Nearest Neighbor (KNN), Decision Tree (DT), Random Forest (RF), and Extreme Gradient Boosting (XGB). The KNN ML algorithm provides more than 98% accuracy for predicting the S‐parameters in all configurations. Hence, the proposed antenna is suitable for 5G NR applications.

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High‐gain compact rectangular dielectric resonator antenna using metamaterial as superstrate

Pandey

Chauhan

Killamsety

et al. 2019

Int J RF Microw Comput Aided Eng

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A compact high‐gain rectangular dielectric resonator antenna (RDRA) using metamaterial (MTM) as superstrate for C‐band applications is proposed in this article. The proposed antenna consists of coaxial‐fed RDRA with 50 unit cells of MTM arranged in 5 × 10 layout as superstrate. Each unit cell is constructed of two parallel eight‐shaped copper strips printed over both faces of a dielectric substrate to provide negative refractive index from 7.3 to 8.1 GHz covering the maximum bandwidth of RDRA. The extracted lumped equivalent circuit model of unit cell of MTM shows concurrence with electromagnetic simulations. The use of MTM superstrate increases the peak gain of the antenna by 89% through simulation and 86% experimentally. The measured results show that the proposed antenna achieves an impedance bandwidth of 16.1% over a band of 7.18‐8.44 GHz, with a peak gain of 14 dBi at 7.8 GHz.

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Design and Fabrication of High Gain Multi-element Multi-segment Quarter-sector Cylindrical Dielectric Resonator Antenna

Cited by 6 publications

References 21 publications

A state-of-art review on performance improvement of dielectric resonator antennas

A state-of-art review on performance improvement of dielectric resonator antennas

Design and Optimization of Dual Port Dielectric Resonator Based Frequency Tunable MIMO Antenna with Machine Learning Approach for 5G New Radio Application

High‐gain compact rectangular dielectric resonator antenna using metamaterial as superstrate

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