scholarly journals Circular Patch Fed Rectangular Dielectric Resonator Antenna with High Gain and High Efficiency for Millimeter Wave 5G Small Cell Applications

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2694
Author(s):  
Abinash Gaya ◽  
Mohd Haizal Jamaluddin ◽  
Irfan Ali ◽  
Ayman A. Althuwayb
Keyword(s):  
Millimeter Wave ◽  
Dielectric Resonator ◽  
High Efficiency ◽  
Ground Plane ◽  
High Gain ◽  
Impedance Match ◽  
Dielectric Resonator Antenna ◽  
Rectangular Slot ◽  
Circular Patch ◽  
Slot Aperture

A novel method of feeding a dielectric resonator using a metallic circular patch antenna at millimeter wave frequency band is proposed here. A ceramic material based rectangular dielectric resonator antenna with permittivity 10 is placed over a rogers RT-Duroid based substrate with permittivity 2.2 and fed by a metallic circular patch via a cross slot aperture on the ground plane. The evolution study and analysis has been done using a rectangular slot and a cross slot aperture. The cross-slot aperture has enhanced the gain of the single element non-metallic dielectric resonator antenna from 6.38 dB from 8.04 dB. The Dielectric Resonator antenna (DRA) which is designed here has achieved gain of 8.04 dB with bandwidth 1.12 GHz (24.82–25.94 GHz) and radiation efficiency of 96% centered at 26 GHz as resonating frequency. The cross-slot which is done on the ground plane enhances the coupling to the Dielectric Resonator Antenna and achieves maximum power radiation along the broadside direction. The slot dimensions are further optimized to achieve the desired impedance match and is also compared with that of a single rectangular slot. The designed antenna can be used for the higher frequency bands of 5G from 24.25 GHz to 27.5 GHz. The mode excited here is characteristics mode of TE1Y1. The antenna designed here can be used for indoor small cell applications at millimeter wave frequency band of 5G. High gain and high efficiency make the DRA designed here more suitable for 5G indoor small cells. The results of return loss, input impedance match, gain, radiation pattern, and efficiency are shown in this paper.

A High-Gain Dielectric Resonator Antenna With Plastic-Based Conical Horn for Millimeter-Wave Applications

2020 ◽  
Vol 19 (6) ◽  
pp. 949-953
Author(s):  
Edoardo Baldazzi ◽  
Ali Al-Rawi ◽  
Renato Cicchetti ◽  
Adrianus Bart Smolders ◽  
Orlandino Testa ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Dielectric Resonator ◽  
High Gain ◽  
Dielectric Resonator Antenna ◽  
Conical Horn

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 Dielectric Resonator Antenna Mounted on Cylindrical Ground Plane for Handheld RFID Reader at 5.8 GHz

2012 ◽  
Vol 1 (3) ◽  
pp. 71
Author(s):  
H. A. E. Malhat ◽  
S. Zainud-deen ◽  
N. El-Shalaby ◽  
K. Awadalla
Keyword(s):  
Dielectric Resonator ◽  
Ground Plane ◽  
Axial Ratio ◽  
High Gain ◽  
Human Hand ◽  
Dielectric Resonator Antenna ◽  
Device Model ◽  
Rfid Reader ◽  
Reader Antenna ◽  
Finite Integral

Dielectric resonator antenna (DRA) mounted on cylindrical ground plane is investigated for handheld RFID reader applications at 5.8 GHz. The simplicity of the structure makes it practical in terms of cost, space, and ease of fabrication. The radiation characteristics of the antenna in free space and in the presence of a proposed compact reader device model and human hand are calculated. The antenna is circularly polarized and exhibits peak gain of 7.62 dB at 5.8 GHz with high front to back ratio of 15.5 dB. Using the same reader device model, a sequentially feeding 2×2 DRA array mounted on the same cylindrical ground plane is used for RFID reader antenna at 5.8 GHz. The array introduces high gain of 9.36 dB at 5.8 GHz with high front to back ratio of 10.48 dB. The 2×2 DRA array elements exhibit circular polarization over a frequency band of 1.1 GHz. The axial ratio is 1.1 dB at 5.8 GHz. The proposed reader model is simple and has a small size compared with that in the case of planar ground plane. The results are calculated using the finite element method (FEM) and compared with that calculated using the finite integral technique (FIT).

scholarly journals Evolution of H-shaped dielectric resonator antenna for 5G applications

2019 ◽  
Vol 13 (2) ◽  
pp. 562
Author(s):  
S. Z. N. Zool Ambia ◽  
M. H. Jamaluddin ◽  
M.R. Kamarudin ◽  
J. Nasir ◽  
R.R. Selvaraju
Keyword(s):  
Millimeter Wave ◽  
Loss Tangent ◽  
Relative Permittivity ◽  
Dielectric Resonator ◽  
Impedance Matching ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Frequency Range ◽  
Feeding Technique ◽  
Slot Aperture

<span>In this paper, an H-shaped Dielectric Resonator Antenna (DRA) with a Microstrip Slot Aperture (MSA) is presented and investigated at 26 GHz. In order to widen the bandwidth operation, the slot aperture feeding technique is applied. The designed DRA with relative permittivity, εr of 10 is mounted on a Duroid substrate with a relative permittivity, εr of 2.2, loss tangent of 0.0009 and a thickness of 0.254mm. The proposed antenna with overall size of 20 x 20 x 5.27 mm3 achieves good impedance matching, gain of 7.61 dB and good radiation patterns. An impedance bandwidth of 21.44%, covering the frequency range from 24.72 GHz to 30.62 GHz made the antenna has potential for millimeter wave and 5G applications.</span>

scholarly journals Design of High Gain Novel Dielectric Resonator Antenna Array for 24 GHz Short Range Radar Systems

2018 ◽  
Vol 7 (4) ◽  
pp. 12-18
Author(s):  
A. Haddad ◽  
M. Aoutoul ◽  
K. Rais ◽  
M. Essaaidi ◽  
M. Faqir ◽  
...  
Keyword(s):  
Time Domain ◽  
Dielectric Resonator ◽  
Short Range ◽  
High Efficiency ◽  
Fdtd Method ◽  
High Gain ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Automotive Radar ◽  
24 Ghz

in this work we present a 16x1 array’ elements of a high gain Novel shape designed Dielectric Resonator Antenna (NDRA), having a low dielectric constant value of 18, for wide band (WB) and narow band (NB) 24 GHz automotive Short Range Radar (SRR) applications. The proposed NDRA array is feed by an efficient microstrip network feeding mechanism and presents wide impedance bandwidth (426 MHz), high gain (20.9 dBi), high efficiency (96%) and directional radiation pattern at 24 GHz with narrow angular beam-width of 6.4°. Computed NDRA array results allow the proposed design to be practical for the next automotive radar generations. Parametric studies have been analyzed using the Finite Difference Time Domain (FDTD) method of the CST-MW time domain solver and results, of the optimal structure, have been validated by the Finite Element Method (FEM) used in HFSS electromagnetic (EM) simulator.

Millimeter-wave High-gain Substrate Integrated Dielectric Resonator Antenna Array

2021 ◽  
Author(s):  
Ke Gong ◽  
Jiu Pei Shi ◽  
Bing Jie Deng ◽  
Jin Tu Sun ◽  
Peng Wang ◽  
...  
Keyword(s):  
Antenna Array ◽  
Millimeter Wave ◽  
Dielectric Resonator ◽  
High Gain ◽  
Dielectric Resonator Antenna

Conical dielectric resonator antenna with improved gain and bandwidth for X-band applications

2017 ◽  
Vol 9 (8) ◽  
pp. 1749-1756 ◽  
Author(s):  
Sounik Kiran Kumar Dash ◽  
Taimoor Khan ◽  
Binod Kumar Kanaujia
Keyword(s):  
Dielectric Resonator ◽  
Microstrip Line ◽  
Ground Plane ◽  
Dielectric Resonator Antenna ◽  
Rectangular Slot ◽  
Wireless Applications ◽  
Feed Line ◽  
X Band

In this paper, a simple conical-shaped dielectric resonator antenna operating in HEM11δmode is presented for X-band wireless applications. A rectangular slot with a running microstrip line is used for excitation purpose. By placing a FR-4 based superstrate at 7 mm height from the ground FR-4 substrate and incorporating a set of modified ground plane on either side of the feed line, gain is improved by 42.85% and bandwidth by 68.92%, simultaneously. A prototype of designed antenna is fabricated and characterized. The measured results are found to be good in matching with the simulated ones.

A wideband dielectric resonator antenna with switchable diversity patterns

2019 ◽  
Vol 12 (4) ◽  
pp. 339-344
Author(s):  
Ahmad Abdalrazik ◽  
Adel B. Abdel-Rahman ◽  
Ahmed Allam ◽  
Mohammed Abo-Zahhad
Keyword(s):  
Dielectric Resonator ◽  
Ground Plane ◽  
High Gain ◽  
Center Frequency ◽  
Dielectric Resonator Antenna ◽  
Copper Sheet ◽  
Pin Diodes ◽  
Antenna Structure ◽  
Diversity Patterns ◽  
Original Size

AbstractIn this paper, a reduced-size dielectric resonator antenna with switchable diversity patterns is proposed. Ring- and linear-shaped slots are etched in the ground plane of the antenna so as to generate two modes $TE_{\delta 11}^x$ and $TE_{\delta 12}^x$ at a center frequency of 19 GHz. Moreover, two groups of PIN diodes are integrated into these slots to short one group of slots, and let the other group generates the required mode. Thus, the antenna is able to generate two switchable patterns with an envelope correlation coefficient of 0.4. Furthermore, the antenna size is reduced to half of its original size by placing a copper sheet over certain plane of the antenna structure. The antenna achieves wide bandwidths of 17.6–20.9 GHz (17.1$\percnt $) and 18.3–21.6 GHz (13.8$\percnt $) in cases of exciting $TE_{\delta 11}^x$ and $TE_{\delta 12}^x$ modes, respectively. The antenna also attainsa high gain of 7.1 and 3.2 dB at the center frequency.

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