Journal ArticleDOI
Compact symmetrical slot coupled linearly polarized two/four/eight element MIMO bowtie DRA for WLAN applications
Reads0
Chats0
TLDR
In this paper, a compact and low cost MIMO (Multiple-Input-Multiple-Output) Bowtie dielectric resonator antennas for two, four and eight elements for public safety entities (4.94-4.99 GHz) and indoor WLAN (5.15-5.35 GHz) applications are presented.Abstract:
This paper presents a compact and low cost MIMO (Multiple-Input-Multiple-Output) Bowtie dielectric resonator antennas for two, four and eight elements for public safety entities (4.94–4.99 GHz) and indoor WLAN (5.15–5.35 GHz) applications. The fractional impedance bandwidth (4.72 GHz – 5.44 GHz) is 14.17% for all ports and strengthens the targeted frequency range gain. Two bubbled I-shape embedded inside the rectangular box defective ground structure to enhance the separation between ports by etching therefore over the operating frequency band, isolation between ports exceeds 25 dB and maximum ECC (envelope correlation coefficient) of 0.04. The designed compact unit cell antenna has a dimension of 30 × 25.6 mm2 (i.e. 0.5λ0 × 0.4 λ0 where λ0 is calculated at 5.2 GHz in the free space) and finally proposed 8-element antenna having a size of only 120 × 51.2 mm2 (2.07 λ0 × 0.88 λ0). Within their finest values, MIMO diversity performance parameters are obtained. The gain of the antenna unit cell, two, four and eight elements are 5.24 dBi, 5.49 dBi, 5.68 dBi and 6.2 dBi respectively and these gain values are most suitable for WLAN applications. To show the simulated performance, a prototype of all radiators would be manufactured and tested experimentally and measured results are good agreement with simulation result.read more
Citations
More filters
Journal ArticleDOI
A butterfly-like slot UWB antenna with WLAN band-notch characteristics for MIMO applications
TL;DR: In this article , an ultra-wideband (UWB) antenna with butterfly-like coupling slot for 4-element multiple-input multiple-output (MIMO) applications is introduced.
Journal ArticleDOI
Isolation enhanced compact dual-band quad-element MIMO antenna with simple parasitic decoupling elements
TL;DR: In this article, a simple parasitic decoupling structure integrated compact dual-band quad-element MIMO configuration with improved isolation is proposed for 3.5 and 5.8 GHz bands of Worldwide Interoperability for Microwave Access (WiMAX) and Wireless Local Area Network (WLAN) applications.
Book ChapterDOI
Design and Analysis of a Biconcave DRA by Using Machine Learning Algorithms for 5G Application
TL;DR: In this article , a biconcave shape of the conventional shape of dielectric resonating antenna has been modified to fit to the frequency of 28 GHz, where the maximum arc-to-arc distance equal to the wavelength was calculated from the design frequency.
Journal ArticleDOI
A comprehensive survey of massive‐MIMO based on 5G antennas
Suverna Senger,Praveen Malik +1 more
TL;DR: In this article , the authors discussed mutual coupling and then techniques and how to reduce the coupling between antennas for 5G Massive MIMO antennas. But, the authors did not consider how to improve the spectral efficiency of the massive MIMOs.
References
More filters
Journal ArticleDOI
Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channels
Lizhong Zheng,David Tse +1 more
TL;DR: A simple characterization of the optimal tradeoff curve is given and used to evaluate the performance of existing multiple antenna schemes for the richly scattered Rayleigh-fading channel.
Journal ArticleDOI
Theoretical and experimental investigations on rectangular dielectric resonator antennas
TL;DR: In this paper, the resonant frequencies and radiation Q-factors of the lowest order "magnetic-dipole" modes are derived on the basis of a first-order theory.
Journal ArticleDOI
A Novel Dual-Band Printed Diversity Antenna for Mobile Terminals
TL;DR: It is proved that the proposed antenna can provide spatial and pattern diversity to combat multipath fading and be used in dual-band diversity antenna for mobile terminals.
Journal ArticleDOI
Measurement of radiation efficiency of dielectric resonator antennas
TL;DR: In this article, the authors measured the radiation efficiency of dielectric resonator antennas in the dominant hybrid (HE/sub 11/spl delta) mode and showed that the conduction losses are quite small.
Journal ArticleDOI
Reduction of Mutual Coupling Between Patch Antennas Using a Polarization-Conversion Isolator
TL;DR: In this article, a parasitic isolator is used to suppress mutual coupling between two patch antennas, and a defected ground structure is employed to suppress the cross-polarization (XP) level.
Related Papers (5)
Design of inverted L-shape & ohm symbol inserted MIMO antenna to reduce the mutual coupling
K. Vasu Babu,B. Anuradha +1 more
Compact Dual-Band MIMO Antenna with High Port Isolation for WLAN Applications
Hao Qin,Yuan-Fu Liu +1 more