Results 1 to 10 of about 15,536 (231)
MIMO Antennas: Design Approaches, Techniques and Applications [PDF]
Sensors, 2022 The excessive use of digital platforms with rapidly increasing users in the wireless domain enforces communication systems to provide information with high data rates, high reliability and strong transmission connection quality.
Rakesh N Tiwari +2 more
exaly +4 more sources
On the Duality between MIMO Systems with Distributed Antennas and MIMO Systems with Colocated Antennas [PDF]
EURASIP Journal on Advances in Signal Processing, 2007 Multiple-input multiple-output (MIMO) systems are known to offer huge advantages over single-antenna systems, both with regard to capacity and error performance. Usually, quite restrictive assumptions are made in the literature on MIMO systems concerning
Peter A. Hoeher, Jan Mietzner
doaj +2 more sources
Investigations on Stub-Based UWB-MIMO Antennas to Enhance Isolation Using Characteristic Mode Analysis [PDF]
Micromachines, 2022 In this article, very compact 2 × 2 and 4 × 4 MIMO (Multiple-Input and Multiple output) antennas are designed with the help of Characteristics Mode Analysis to enhance isolation between the elements for UWB applications.
Ankireddy Chandra Suresh +6 more
doaj +2 more sources
The Causal Nexus Between Different Feed Networks and Defected Ground Structures in Multi-Port MIMO Antennas [PDF]
SensorsMultiple input multiple output (MIMO) antennas have recently received attention for improving wireless communication data rates in rich scattering environments.
Merve Tascioglu Yalcinkaya +3 more
doaj +2 more sources
Wireless Personal Communications, 2023 In this work, two types of Vivaldi MIMO antenna are designed and fabricated. The first one is a two ports band-reject Vivaldi MIMO antenna. The second one is a two ports band-reject Vivaldi MIMO antenna with a dielectric lens. Measurements show that the experimental working band of both is 3 to 12 GHz with isolation between ports higher than 25 dB ...
Bazil Taha Ahmed +1 more
openaire +1 more source
IEEE Access, 2023 The next six-generation (6G) mobile device is expected to support eight MIMO spatial streams to achieve a much larger spectral efficiency than the current fifth-generation (5G) 4×4 MIMO operation in the mid-band such as the 3.5 GHz band. Thus, for
Kin-Lu Wong, Shao-En Hong, Wei-Yu Li
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Design, Challenges and Developments for 5G Massive MIMO Antenna Systems at Sub 6-GHz Band: A Review
Nanomaterials, 2023 Massive multiple-input multiple-output (mMIMO) is a wireless access technique that has been studied and investigated in response to the worldwide bandwidth demand in the wireless communication sector (MIMO).
Sura Khalil Ibrahim +7 more
doaj +1 more source
Multiplexing Efficiency of MIMO Antennas [PDF]
IEEE Antennas and Wireless Propagation Letters, 2011 A simple and intuitive metric of multiplexing efficiency is proposed for evaluating the performance of multiple-input-multiple-output (MIMO) antennas in the spatial multiplexing mode of operation. Apart from gaining valuable insights into the impact of antenna efficiency, efficiency imbalance, and correlation on multiplexing performance, the metric is ...
Tian, Ruiyuan +2 more
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Diversity characteristics of four-element ring slot-based MIMO antenna for sub-6-GHz applications
ETRI Journal, 2023 This paper proposes four-ring slot resonator-based MIMO antennas of 75 x 150 mm2 without and with CSRR structures in the sub-6-GHz range. These orthogonal-fed antennas have shown diverse characteristics with dual polarization.
Vipul Kaushal +2 more
doaj +1 more source
Journal of Energy and Electrical Engineering, 2022 OFDM is a transmission technique using orthogonal multi-carrier which can save bandwidth. While MIMO is a technique of using more than one antenna for transmitting and receiving.
Muhammad Iman Nur Hakim +2 more
doaj +1 more source