Results 31 to 40 of about 61,754 (211)

A New Technique of FSS-Based Novel Chair-Shaped Compact MIMO Antenna to Enhance the Gain for Sub-6GHz 5G Applications

open access: yesIEEE Access
This paper introduces a new compact Chair-shaped MIMO antenna with two radiating elements and a single layer of frequency-selective surface (FSS) for 5G Sub-6GHz communication systems.
M. Y. Zeain   +6 more
doaj   +1 more source

MIMO Antenna Array Design with Polynomial Factorization

open access: yesInternational Journal of Antennas and Propagation, 2013
One of the main advantages of multiple-input multiple-output (MIMO) antenna is that the degrees-of-freedom can be significantly increased by the concept of virtual antenna array, and thus the MIMO antenna array should be carefully designed to fully ...
Wen-Qin Wang, Huaizong Shao, Jingye Cai
doaj   +1 more source

12-Port 5G Massive MIMO Antenna Array in Sub-6GHz Mobile Handset for LTE Bands 42/43/46 Applications

open access: yesIEEE Access, 2018
A 12-port antenna array operating in the long term evolution (LTE) band 42 (3400-3600 MHz), LTE band 43 (3600-3800 MHz), and LTE band 46 (5150-5925 MHz) for 5G massive multiple-input multiple-output (MIMO) applications in mobile handsets is presented ...
Yixin Li   +3 more
doaj   +1 more source

Properties of the MIMO radar ambiguity function [PDF]

open access: yes, 2008
MIMO (multiple-input multiple-output) radar is an emerging technology which has drawn considerable attention. Unlike the traditional SIMO (single-input multiple-output) radar, which transmits scaled versions of a single waveform in the antenna elements ...
Chen, Chun-Yang, Vaidyanathan, P. P.
core   +3 more sources

Massive MIMO With Dual-Polarized Antennas

open access: yesIEEE Transactions on Wireless Communications, 2023
This paper considers a single-cell massive MIMO (multiple-input multiple-output) system with dual-polarized antennas at both the base station and users. We study a channel model that includes the key practical aspects that arise when utilizing dual-polarization: channel cross-polar discrimination (XPD) and cross-polar correlations (XPC) at the ...
Ozgecan Ozdogan, Emil Bjornson
openaire   +2 more sources

Design and performance of four port MIMO antenna for IOT applications

open access: yesICT Express, 2022
In this paper, a four port MIMO antenna of compact split ring resonator (SRR) type with high degree of isolation among four ports on the antenna has been proposed for MIMO multiband applications.
R. Nagendra, S. Swarnalatha
doaj   +1 more source

Massive MIMO performance evaluation based on measured propagation data

open access: yes, 2015
Massive MIMO, also known as very-large MIMO or large-scale antenna systems, is a new technique that potentially can offer large network capacities in multi-user scenarios.
Edfors, Ove   +3 more
core   +1 more source

Multiple Antenna Configuration of LEO-MIMO Feeder Link for High Channel Capacity

open access: yesIEEE Access
We investigated low Earth orbit satellite (LEO) communications applying Multiple-Input/Multiple-Output (MIMO) technology to the feeder link transmission between a satellite and gateway antennas to improve the channel capacity.
Daisuke Goto   +3 more
doaj   +1 more source

Trade-Off Analysis of Mutual Coupling Effect on MIMO Antenna Multiplexing Efficiency in Three-Dimensional Space

open access: yesIEEE Access, 2018
We analyzed the relation between two opposite effects of mutual coupling (MC), correlation reduction and gain loss, on the MIMO antenna performance in three-dimensional (3D) space. In the antenna level, those MC effects can be represented in terms of two
Satya Nandiwardhana, Jae-Young Chung
doaj   +1 more source

Microwave and Millimeter-Wave MIMO Antenna Using Conductive ITO Film

open access: yesIEEE Access, 2020
This paper will present a novel design of optically transparent multiple-input multiple-output (MIMO) antenna made by indium tin oxide (ITO) films. The MIMO antenna involves patch and monopole antenna elements at 4.9 GHz and 26 GHz respectively.
Kwok Kan So, Bao-Jie Chen, Chi Hou Chan
doaj   +1 more source

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