Article
Engineering, Electrical & Electronic
Wei Hu, Qiaosong Li, Hao Wu, Zhan Chen, Lehu Wen, Wen Jiang, Steven Gao
Summary: This paper presents a novel decoupling method for designing a dual-band closely arranged MIMO antenna pair with high isolation for 5G smartphones. By combining a bent loop and a T-shaped monopole into a compact space, multiple in-phase and out-of-phase modes are excited at two different bands to reduce mutual coupling. The proposed antenna pair achieves high isolation of over 24 dB without additional decoupling structures. An 8 x 8 MIMO system is developed using four such antenna pairs, operating at 3.3-3.6 GHz and 4.4-5.0 GHz, with isolation exceeding 12.8 dB, low envelope correlation coefficients (ECCs) below 0.18, and efficiencies above 71% and 68% in the respective bands. This MIMO system features dual-band operation, compact structure, and excellent isolation, providing a promising solution for 5G smartphone antenna design.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Ziheng Zhou, Yuehe Ge, Jiade Yuan, Zhimeng Xu, Zhizhang David Chen
Summary: This article presents a wideband printed-monopole antenna pair with enhanced isolation. A clear two-step method based on even-mode (EM) and odd-mode (OM) analyses is developed for antenna decoupling and matching. The proposed antenna pair offers isolation higher than 20 dB and total efficiency higher than 87% from 3.7 to 7.3 GHz. Furthermore, a four-element multiple-input-multiple-output (MIMO) array constructed by intersecting two of the proposed antenna pairs at their central line offers better than 20 dB isolation level from 3.8 to 7.4 GHz for every two ports.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Reza Zaker, Ali Kheirdoost
Summary: The novel broadband matching and decoupling network (MDN) is designed for a symmetric two-element array of microstrip patch antennas, achieving increased efficiency and isolation through the excitation of new half-modes with parallel shorting posts. A resonator-based equivalent-circuit model is used to study the coupling mechanism. Overall, the proposed design outperforms other state-of-the-art approaches.
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
Yi-Feng Cheng, Jie Liu, Changning Wei, Wen-Jing Wu, Liguo Sun, Gaofeng Wang
Summary: This letter proposes a novel interplanted patch-monopole array with enhanced port isolation, high radiation efficiency, and compact layout.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Xide Mei, Ke-Li Wu
Summary: In this article, a capacity-oriented envelope correlation coefficient (ECC) is proposed for assessing a multiple antenna system of a MIMO mobile device. The ECC-M is proven to reflect the impact of radiation patterns and total efficiencies of multiple antennas on channel capacity. By studying two channel models, an easy-to-use ECC-M expression is derived and shown to be important in assessing the performance of multiple antennas.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Long Qian, Xiaodong Chen, Hai Zhou, Hanyang Wang, Meng Hou
Summary: In this communication, a high-isolation tripolarized metasurface antenna with a low profile is proposed for indoor access-point applications. By utilizing differential-mode excitations and multiport common-mode excitation, triple polarization diversity is achieved. Nonuniform unit patches and slot structures are introduced to tune the resonant frequencies of target characteristic modes. The fabricated antenna shows good impedance bandwidth and isolation in the operating band.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Ping Wang, Jie Liu, Guilan Huang, Qi Wu, Chao Zhou, Wensong Wang
Summary: This article proposes a gain-enhanced wideband MIMO antenna with high isolation and quasi-omnidirectional radiation. The design incorporates multiple elements in a hexagonal structure and utilizes different metasurfaces for wideband gain enhancement and isolation. The prototype demonstrates an impedance bandwidth of 2.85-10.9 GHz and achieves high isolation and low envelope correlation coefficient between antenna elements. The proposed MIMO antenna design is suitable for vehicular radar applications.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Engineering, Electrical & Electronic
Jing-Chang Nan, Ming-Huan Wang, Ming-Ming Gao, Jing Liu
Summary: A compact UWB multiple-input multiple-output (MIMO) antenna with higher isolation between units is proposed, achieving good performance for UWB wireless communication with improved ground structure and antenna unit placement. The antenna size is 15 x 22 x 1.6 mm(3) and meets the requirements for practical engineering applications.
ELECTRONICS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Bo Cheng, Zhengwei Du
Summary: This paper presents a dual-polarization microstrip MIMO antenna for 5G mobile phones, enabling multiple input and multiple output communication. By arranging eight differentially fed microstrip antenna elements on the back cover of a mobile phone, an eight-element MIMO antenna is constructed. This antenna features a wide operating band, low mutual couplings, low ECCs, and low MEG ratios.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Tianqi Pei, Lei Zhu, Jianpeng Wang, Wen Wu
Summary: This article introduces a new low-profile decoupling structure for patch antenna arrays based on the phase shift concept. Through analysis and demonstration, it is proven to effectively enhance isolation between antenna elements and suppress mutual coupling.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Quang Quan Phung, Tuan Hung Nguyen, Naobumi Michishita, Hiroshi Sato, Yoshio Koyanagi, Hisashi Morishita
Summary: The study introduces a technique using linear parasitic elements and a bridge line to optimize PIFA antennas, achieving dual-band characteristics and low mutual coupling without the need for adjusting the original PIFAs. This approach effectively addresses the issue of adjusting antenna size or configuration.
IET MICROWAVES ANTENNAS & PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Satheeshkumar Thirugnanasambandam, Idayachandran Govindanarayanan
Summary: This article proposes a wideband tripolarized antenna for fifth-generation access point applications. The antenna is composed of a circular patch and a square reflector, and is excited by three ports separated by 120. The bandwidth and isolation of the antenna are enhanced by circular hook shaped slots and a defective ground reflector. The measured impedance bandwidth of the antenna is 46.9% (3.1 GHz-5 GHz) and the peak isolation is -26 dB.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Wen-Feng Zeng, Fu-Chang Chen
Summary: In this communication, a wideband and high-isolation mobile phone antenna pair is proposed for fifth-generation (5G) smartphone applications. The antenna pair is based on four orthogonal modes and achieves wideband and high-isolation characteristics through characteristic mode analysis and the introduction of a metallic strip. Additionally, an 8 x 8 multiple-input multiple-output (MIMO) system is implemented to further enhance the performance.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Bixia Yang, Yunxue Xu, Jiahao Tong, Yuhao Zhang, Yuwen Feng, Yafei Hu
Summary: A novel self-decoupling tri-port antenna is proposed, which achieves good isolation and low correlation coefficient through mode cancellation method and active reflection coefficient theory.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Computer Science, Information Systems
Ibrahima Gueye, Ibra Dioum, Idy Diop, K. Wane Keita, Papis Ndiaye, Moussa Diallo, Sidi Mohamed Farssi
WIRELESS COMMUNICATIONS & MOBILE COMPUTING
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
Demba Ba, Ibra Dioum, Yvan Duroc
Summary: RFID technology is evolving with new capabilities, requiring more energy consumption, and the concept of utilizing reflected energy by nearby tags is proposed to address this issue.
2021 IEEE INTERNATIONAL CONFERENCE ON RFID TECHNOLOGY AND APPLICATIONS (RFID-TA)
(2021)
Proceedings Paper
Telecommunications
Ibrahima Gueye, Idy Diop, Ibra Dioum, K. Wane Keita, Papis Ndiaye, Moussa Diallo, Sidi Mohamed Farssi
Summary: This study analyzes the performance of using LDPC codes with global coupling in a double-hop relay system with multiple inputs and multiple outputs. The decoding is done using local-global decoding and interference is eliminated using interference alignment technique. The system combines RF and FSO communication technologies for improved network reliability and transmission.
2021 23RD INTERNATIONAL CONFERENCE ON ADVANCED COMMUNICATION TECHNOLOGY (ICACT 2021): ON-LINE SECURITY IN PANDEMIC ERA
(2021)
Proceedings Paper
Computer Science, Information Systems
Lamine Sane, Khaly Tall, Ibra Dioum, Sidi M. Farssi
PROCEEDINGS OF THE 2020 FOURTH WORLD CONFERENCE ON SMART TRENDS IN SYSTEMS, SECURITY AND SUSTAINABILITY (WORLDS4 2020)
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
Kadidiatou Diallo, Aliou Diallo, Ibra Dioum, Samuel Ouya, Jean-Marc Ribero
2020 INTERNATIONAL WORKSHOP ON ANTENNA TECHNOLOGY (IWAT)
(2020)
Article
Engineering, Electrical & Electronic
Kadidiatou Diallo, Aliou Diallo, Ibra Dioum, Samuel Ouya, Jean M. Ribero
PROGRESS IN ELECTROMAGNETICS RESEARCH M
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
Madiop Diouf, Idy Diop, Ibra Dioum, Khaly Tall, Sidi Mohamed Farssi
2018 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, SIGNAL PROCESSING AND NETWORKING (WISPNET)
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
Lamine Sane, Ibra Dioum, Khaly Ta, M. Mansour Khouma, Kadidiatou Dia, Sidi Mohamed Farssi
2018 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, SIGNAL PROCESSING AND NETWORKING (WISPNET)
(2018)
Proceedings Paper
Computer Science, Information Systems
Lamine Sane, Assane Ngom, Khaly Tall, Ibra Dioum, Idy Diop, M. Mansour Khouma, Kadidiatou Diallo, Sidi Mohamed Farssi
PROCEEDINGS OF 2018 6TH INTERNATIONAL CONFERENCE ON MULTIMEDIA COMPUTING AND SYSTEMS (ICMCS)
(2018)
Proceedings Paper
Computer Science, Information Systems
Ibra Dioum, Kadidiatou Diallo, Mamadou M. Khouma, Idy Diop, Lamine Sane, Assane Ngom
PROCEEDINGS OF 2018 6TH INTERNATIONAL CONFERENCE ON MULTIMEDIA COMPUTING AND SYSTEMS (ICMCS)
(2018)
Proceedings Paper
Computer Science, Theory & Methods
Ahmed D. Kora, Cheikh B. Rabany, Zacharia Damoue, Ibra Dioum
INNOVATION AND INTERDISCIPLINARY SOLUTIONS FOR UNDERSERVED AREAS
(2018)
Proceedings Paper
Computer Science, Theory & Methods
Madiop Diouf, Idy Diop, Ibra Dioum, Birahime Diouf, Khaly Tall, Sidi Mohamed Farsi, Lamine Sane
INNOVATION AND INTERDISCIPLINARY SOLUTIONS FOR UNDERSERVED AREAS
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
Moussa Diallo, Idy Diop, Ibra Dioum
2017 11TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP)
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
A. N'gom, A. Diallo, K. Talla, A. Chaibo, I. Dioum, J. M. Ribero, A. C. Beye
2017 11TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP)
(2017)
Proceedings Paper
Computer Science, Hardware & Architecture
Ibra Dioum, Idy Diop, Lamine Sane, Mansour Khouma, Kadidiatou Diallo
2017 INTERNATIONAL CONFERENCE ON WIRELESS TECHNOLOGIES, EMBEDDED AND INTELLIGENT SYSTEMS (WITS)
(2017)
