Design of an integrated sub-6 ghz and mmwave mimo antenna for 5g handheld devices [PDF]
, 2021 The reported work demonstrates the design and realization of an integrated mid-band (sub-6 GHz) and mmWave multiple input, multiple output (MIMO) antenna for 5G handheld devices.
Ali M. +8 more
core +4 more sources
Compact quad-element high-isolation wideband mimo antenna for mm-wave applications [PDF]
, 2021 This paper presents a multiple-input multiple-output (MIMO) antenna system for millimeter-wave 5G wireless communication services. The proposed MIMO configuration is composed of four antenna elements, where each antenna possesses an HP-shaped ...
Alibakhshikenari M. +7 more
core +1 more source
Uplink millimeter-wave multi-cell multi-user massive multi-input multi-output systems [PDF]
, 2022 In this paper, we delve into the maximized spectral efficiency (SE) of millimeter-wave (mmWave) multicell multiuser massive MIMO Systems for uplink transmission with low-resolution phase shifters (LRPSs).
Kodimyala, Srinivas +1 more
core +3 more sources
Isolation improvement in uwb-mimo antenna system using slotted stub [PDF]
, 2020 Multiple-input multiple-output (MIMO) scheme refers to the technology where more than one antenna is used for transmitting and receiving the information packets. It enhances the channel capacity without more power.
Alibakhshikenari M. +8 more
core +4 more sources
Improvement For MIMO Systems By Increasing Antenna Isolation And Shaping Radiation Pattern Using Hybrid Network [PDF]
, 2022 In this article, a novel method is proposed to design a hybrid network (HN) to increase isolation and shape radiation patterns for multiple-input multiple-output (MIMO) antenna systems.
Jiang, Fan +6 more
core +2 more sources
Numerical Evaluation of the Hydropneumatic Power of the Oscillating Water Column Wave Energy Converter Submitted to Regular and Irregular Waves [PDF]
, 2021 The purpose of this study is to computationally analyze the hydropneumatic power available in the air duct of an Oscillating Water Column (OWC) Wave Energy Converter (WEC) device when subject to realistic sea state data (irregular waves) and when ...
Isoldi, Liércio André +5 more
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Joint Direction-of-Arrival and Time-of-Arrival Estimation with Ultra-wideband Elliptical Arrays [PDF]
, 2023 This paper presents a general technique for the joint Direction-of-Arrival (DoA) and Time-of-Arrival (ToA) estimation in multipath environments. The proposed ultra-wideband technique is based on phase-mode expansions and the use of nearly frequency ...
Alex-Amor, Antonio +3 more
core +2 more sources
Analog-Domain Suppression of Strong Interference Using Hybrid Antenna Array. [PDF]
, 2022 The proliferation of wireless applications, the ever-increasing spectrum crowdedness, as well as cell densification makes the issue of interference increasingly severe in many emerging wireless applications.
Guo, YJ +6 more
core +1 more source
Multi-RF Beamforming-Based Cellular Communication Over Wideband mmWaves [PDF]
, 2022 The existing literature on cellular multi-user mmWave communication focus on joint baseband and RF precoding designs to enable spatial multiple access with minimum interference. These studies either assume the number of users M is less than the number of
De, Swades, Varshney, Nancy
core +1 more source
Simulação numérica de um conversor de energia das ondas do mar em energia elétrica do tipo galgamento considerando dados realísticos de estado de mar encontrados na costa do município de Rio Grande [PDF]
, 2023 Dentre as diversas fontes de energia renovável que podem ser exploradas, têm-se a energia contida nas ondas do mar, que pode ser extraída por meio de dispositivos conversores, como o do tipo Galgamento. Seu princípio operacional consiste em uma rampa que
Paiva, Maycon da Silveira
core