Results 51 to 60 of about 20,804 (217)
A High Isolation MIMO Antenna without Decoupling Structure for LTE 700 MHz
International Journal of Antennas and Propagation, 2015 This paper presents a long-term evolution (LTE) 700 MHz band multiple-input-multiple-output (MIMO) antenna, and high isolation between the two symmetrical antenna elements is obtained without introducing extra decoupling structure.
Yanjie Wu, Yunliang Long
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Design and Analysis of UWB MIMO Antenna for Smart Fabric Communications
International Journal of Antennas and Propagation, 2022 This paper presents a flexible multiple-input, multiple-output (MIMO) antenna with ultrawideband (UWB) performance for smart clothing applications. The MIMO antenna is comprised of four octagonal-shaped radiators with several slots loaded into them, and ...
Thennarasi Govindan +3 more
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Micromachines, 2023 This article presents the circularly polarized antenna operating over 28 GHz mm-wave applications. The suggested antenna has compact size, simple geometry, wideband, high gain, and offers circular polarization.
Fatma Taher +8 more
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Analysis and Design of Channel Estimation in Multicell Multiuser MIMO OFDM Systems [PDF]
, 2014 This paper investigates the uplink transmission in multicell multiuser multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. The system model considers imperfect channel estimation, pilot contamination (PC), and
Xu, Peng +3 more
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Optimized Super-Wideband MIMO Antenna with High Isolation for IoT Applications
Micromachines, 2022 A compact, low profile, multiple-input–multiple-output (MIMO) diversity antenna with super-wideband (SWB) characteristics has been proposed. The proposed antenna comprises four symmetric monopole-radiating elements printed on low-cost FR4 substrate with ...
Adnan Khurshid +3 more
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A universal space-time architecture for multiple-antenna aided systems
, 2012 In this tutorial, we first review the family of conventional multiple-antenna techniques, and then we provide a general overview of the recent concept of the powerful Multiple-Input Multiple-Output (MIMO) family based on a universal Space-Time Shift ...
Sugiura, Shinya +2 more
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IEEE Access, 2020 In this paper, 4 × 4/8 × 8/10 × 10 multiple input multiple output (MIMO) antenna systems composed of co-located self-neutralized antenna pairs are proposed to operate at 4.8-5.0 GHz (part of N77 band) for the fifth-generation (5G ...
Chong-Zhi Han +3 more
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Isolation Improvement of Parasitic Element-Loaded Dual-Band MIMO Antenna for Mm-Wave Applications
Micromachines, 2022 A dual-band, compact, high-gain, simple geometry, wideband antenna for 5G millimeter-wave applications at 28 and 38 GHz is proposed in this paper. Initially, an antenna operating over dual bands of 28 and 38 GHz was designed.
Musa Hussain +7 more
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Approximate minimum BER power allocation for MIMO-THP system [PDF]
, 2008 This paper proposes a transmit power allocation (TPA) scheme based on multiple-input multiple-output (MIMO) Tomlinson-Harashima precoding (THP) structure, where a TPA matrix is introduced to the conventional MIMO-THP.
Lv, Tiejun +9 more
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A Design of Double Broadband MIMO Antenna
International Journal of Antennas and Propagation, 2015 The MIMO antenna applied to LTE mobile system should be miniaturization and can work in the current communication frequency band; isolation between each antenna unit also should be good so as to reduce loss of radio wave energy and improve the antenna ...
Yanfeng Geng +3 more
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