Article
Engineering, Electrical & Electronic
Ubaid Ullah, Muath Al-Hasan, Slawomir Koziel, Ismail Ben Mabrouk
Summary: This article presents a four-element circularly polarized MIMO antenna array design utilizing 45 degrees inclined slots and a straight microstrip line feeding technique, achieving circular polarization diversity and polarization direction diversity, with wide impedance bandwidth, high gain, and compact size.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Abubaker Ahmed Elobied, Xue-Xia Yang, Tian Lou, Steven Gao
Summary: This paper proposes a novel compact MIMO antenna with low mutual coupling based on a 2x2 dual-polarized half-mode substrate integrated waveguide. A new miniaturized decoupling structure is introduced to further reduce mutual coupling. The antenna shows good performance in both simulated and measured results within the operating bandwidth.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Chemistry, Analytical
Rong Yang, Shuqi Xi, Qibo Cai, Zhizhou Chen, Xiaohang Wang, Gui Liu
Summary: The proposed compact dual-band MIMO antenna, with high isolation and small size, is suitable for 5G and 4G applications.
Article
Engineering, Electrical & Electronic
Jia Wei, Shaowei Liao, Quan Xue, Wenquan Che
Summary: This paper presents a new highly integrated multifunctional antenna for global navigation satellite systems (GNSS). The antenna can be used for navigation, surveying, mobile communication, and wireless communication. It features low profile, high integration, and wideband, making it suitable for various applications.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Computer Science, Information Systems
Haifu Zhang, Li-Xin Guo, Pengfei Wang, Hao Lu
Summary: The paper introduces a compact 8 x 8 MIMO antenna design for 5G terminals, consisting of two quad-element antenna pairs with T-shaped monopole and edge-coupled dipole mode elements, using various methods for decoupling.
Article
Nanoscience & Nanotechnology
Heqing Huang, Adam C. Overvig, Yuan Xu, Stephanie C. Malek, Cheng-Chia Tsai, Andrea Alu, Nanfang Yu
Summary: Based on symmetry-breaking perturbations, leaky-wave metasurfaces offer pointwise control of the amplitude, phase and polarization of surface emission, which provides a universal generalization of grating couplers for integrated photonics. These metasurfaces integrate guided-wave photonic systems and enable full command over four optical degrees of freedom across large apertures, offering enhanced functionalities for controlling amplitude, phase, and polarization in light scattering. This hybrid approach merges guided and free-space optics, opening up applications in imaging, communications, augmented reality, quantum optics, LIDAR, and integrated photonic systems.
NATURE NANOTECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Amarendra Edpuganti, Vinod Khadkikar, Naji Al Sayari, Bashar Zahawi
Summary: This paper presents a new single-inductor based multiple-input-multiple-output (MIMO) converter for CubeSat EPS to achieve a smaller footprint. The operational principles, steady-state analysis, and converter modeling of the proposed converter are discussed. A control strategy is developed for voltage regulation and maximum power point tracking (MPPT) of the CubeSat loads under varying irradiation conditions. An experimental prototype based on the 1 U CubeSat specifications is developed to validate the performance of the proposed MIMO converter.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Computer Science, Information Systems
Ming Xu, Jingwei Zhang
Summary: This paper presents a circularly polarized multiple-input multiple-output dielectric resonator antenna for 5G millimeter-wave applications. The antenna achieves wideband impedance and optimized axial ratio performance through the use of modified cross slots and complementary split ring resonators.
Article
Engineering, Electrical & Electronic
Mohammad Ayoub Sofi, Kushmanda Saurav, Shiban Kishen Koul
Summary: In this study, a dual-band circularly polarized (CP) four-port MIMO antenna is proposed for K/Ka-bands fixed-satellite service. The antenna demonstrates good MIMO performance with low correlation coefficient and high diversity gain. The proposed antenna has potential applications in the Ka-band fixed satellite service.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Amjad Iqbal, Muath Al-Hasan, Ismail Ben Mabrouk, Tayeb A. Denidni
Summary: This article presents a novel compact dual-element capsule endoscopic MIMO antenna operating at 915 MHz ISM band. Both radiating elements are circularly polarized, with Antenna-1 operating at LHCP and Antenna-2 operating at RHCP. The antenna provides polarization diversity and pattern diversity due to the opposite direction of radiation from the two elements. The antenna has compact dimensions, high isolation, and good performance in SAR, LM, and MIMO channel parameters.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Zheng Dong, Zhen Li, Xiaolu Lucia Li, Chi K. Tse, Zhenbin Zhang
Summary: This article introduces a novel current-source-mode SIMIMO dc/dc converter that can avoid cross-regulation and use simpler control strategies. The converter allows for all inputs and outputs to share a common ground and provides ease of expansion, while also reducing the number of main circuit components.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Multidisciplinary Sciences
Muhammad Ammar Saeed, Muhammad Zeeshan Khan, Asim Khan, Muhammad Umer Saeed, Muhammad Arshad Shehzad Hassan, Talal Javed
Summary: Propagation path loss estimation is crucial for the design and implementation of 4G wireless networks. Various multipath mechanisms can lead to strong attenuation of radio signals, and different approaches are used to calculate path loss for different antenna models. Results showed that varying base station antenna height impacts path loss, with the best performance observed at 41 meters for MIMO infrastructure in the 900, 1800, and 2100 MHz bands.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Qun Li, Shaoqiu Xiao
Summary: A compact substrate-integrated waveguide (SIW) filtering multiple-input multiple-output magnetic dipole antenna with high selectivity and high isolation is proposed. Each filtering antenna element contains a SIW cavity, a half-mode SIW cavity, and a magnetic dipole antenna with backed ground. Meanwhile, the SIW cavity and the half-mode SIW cavity are vertically connected through magnetic coupling, and second-order filtering frequency responses can be obtained. Owing to the cross-coupling between the feeding line and antenna, two radiation nulls can be created to realize high selectivity. Based on the radiation mechanism of the magnetic dipole antenna and polarization diversity, high isolation can be obtained. The measured isolation and the envelope correlation coefficient are greater than 24 dB and less than 0.004, respectively.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2023)
Article
Computer Science, Interdisciplinary Applications
Sihui Bao, Wu Ren, Qingyun Zeng, Zhenghui Xue, Weiming Li
Summary: In this paper, a novel ultra-wideband multiple-input multiple-output antenna with dual band-notched characteristics is proposed, which effectively eliminates interference from wireless local area network and X satellite communication frequency bands. The antenna has a compact size, stable performance, and is suitable for ultra-wideband communications.
INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Libin Sun, Yue Li, Zhijun Zhang
Summary: This article introduces a wideband and highly-integrated quad-element MIMO antenna for 5G smartphones, which achieves better isolation and antenna efficiency through the clever combination of complementary antenna pairs. The experimental validation demonstrates the superiority of this system in providing good isolation and antenna efficiency.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
