Maodudul Hasan

Japanese

Affiliation	Department of Electrical and Electronic Information Engineering
Title	Assistant Professor
Fields of Research	Antenna/Microwave circuit
Degree	PhD (Saga University))
Academic Societies	IEEE, IEICE
E-mail	hasan.maodudul.cq Please append "tut.jp" to the end of the address above.
Laboratory website URL	https://comm.ee.tut.ac.jp/em/index.html
Researcher information URL（researchmap）	Researcher information

Research

In recent years, the volume of data communications has increased dramatically, and the performance of antennas mounted on wireless devices must become more sophisticated, as they are the most important factor influencing the quality of communications. Within the framework of future wireless systems, we are actively working on the development of active antennas (AIA) and reconfigurable antennas.

Theme1：Multifunctional Active Integrated Array Antenna (AIA) for Next Generation Wireless Communications

Overview

Developed AIA with various polarization and beam-switching functions

Self-oscillating active integrated antenna (AIA), capable of converting dc power to electromagnetic waves for direct radiation to space, has been suggested as a futuristic antenna
design solution. AIA has found applications in wireless power charging system (WPT), multicarrier radio frequency identification (RFID), and Internet of things (IoT) systems. A careful literature survey reveals that up-to-date, there are just few studies on multi-functional AIAs, dramatically against the anticipation. Thus, this research is devoted to analysis, modelling and design of advanced AIAs.

Selected publications and works

[1] Maodudul Hasan, Eisuke Nishiyama, Takayuki Tanaka, and Ichihiko Toyoda, “Three-state pattern reconfigurable active antenna integrated with Gunn oscillator and switched-line phase shifter,” Electronic Letters, vol. 59, no. 12. Jul. 2023.
[2] Maodudul Hasan, Eisuke Nishiyama, Takayuki Tanaka, and Ichihiko Toyoda, “A first harmonic Push-Push oscillator based self-oscillating active integrated pattern switchable array antenna,” Electronic Letters, vol. 59, no. 5. Mar. 2023.
[3] Maodudul Hasan, Eisuke Nishiyama, and Ichihiko Toyoda, “Multi-layer approach of polarization agile oscillating-type active integrated array antenna for RF transmitter front-end,” Int. J. Wirel. Microw. Technol., pp. 1-9, Apl. 2022.
[4] Maodudul Hasan, Eisuke Nishiyama, Takayuki Tanaka, and Ichihiko Toyoda, “A dual-beam switchable self-oscillating Ku-Band active array antenna integrating positive feedback type Push-Push oscillator and PSK modulator,” Prog. Electromagn. Res. C, vol. 116, pp. 181-192, Nov. 2021.
[5] Maodudul Hasan, Eisuke Nishiyama, and Ichihiko Toyoda, “A beam switchable self-oscillating active integrated array antenna using Gunn oscillator and magic-T,” IEICE Trans. Commun., vol. E104-B, no.11, pp. 1419-1428, Nov. 2021.
[6] Maodudul Hasan, Hiroki Ushiroda, Eisuke Nishiyama, and Ichihiko Toyoda, “A polarization switchable active array antenna integrating a multiport oscillator and PSK modulators,” APMC2018, pp. 1253-1255, Kyoto, Japan, Nov. 2018.

Keywords

active integrated antenna, AIA, oscillator, beam switchable, polarization switchable

Theme2：Simultaneous Polarization and Beam Switchable Antenna

Overview

In recent years, data traffic has increased dramatically, and the performance and size of antennas installed in wireless devices are the most important factors that affect communication quality, so there is a demand for further improvement in functionality. Antennas have important characteristics called "polarization" and "directivity" that can be adjusted to suit the environment. However, current conventional antenna systems have fixed polarization and limited beam steering functions, which limits their adaptability and performance. In this research project, we propose a new structure called SPBSA (Simultaneous Polarization and Beam Switchable Antenna) that can control both polarization and directivity by combining a conventional array antenna with a phase shifter and a distribution/combining circuit. It is characterized by a simple structure that can be configured on the same plane. In this study, we clarify the operating principle of the proposed antenna and conduct a demonstration experiment. It is expected that the proposed antenna will be widely used to improve the reliability and robustness of wireless links in environments with large signal degradation such as indoor spaces and urban areas, which are attracting attention in Beyond 5G and 6G.

Selected publications and works

[1]. M. Hasan, E. Nishiyama, and I. Toyoda, “A quad-polarization and beam agile array antenna using rat-race coupler and switched-line phase shifter,” IEEE Open J. Antennas Propag., vol. 4, pp. 990–999, Sep. 2023, DOI: 10.1109/OJAP.2023.3316704.
[2]. M. Hasan, E. Nishiyama and I. Toyoda, "Design of switchable dual-axis monopulse array antenna with wide beam-steering functionality employing tri-state SPDT switches," 2024 IEEE International Workshop on Antenna Technology (iWAT), Sendai, Japan, 2024, pp. 209-212, doi: 10.1109/iWAT57102.2024.10535835.
[3]. M. Hasan, E. Nishiyama, and I. Toyoda, “Design of a dual circularly polarized array antenna with switchable sum and difference patterns using hybrid coupler and phase shifters,” ICETC 2023, Sapporo, Japan, 2023/12, O3–2, DOI: 10.34385/proc.79.O3–2.
[4]. M. Hasan, E. Nishiyama and I. Toyoda, "A Single-Feed Array Antenna With Sum- and Difference-Patterns Using Planar Magic-Ts," 2023 IEEE International Symposium On Antennas And Propagation (ISAP), Kuala Lumpur, Malaysia, 2023, pp. 1-2, doi: 10.1109/ISAP57493.2023.10388677.

Others (Awards, Committees, Board members)

(Awards)
2024/12 IEEE AP-S Young Engineer Award, Tokyo Chapter, Japan.
2024/12 Best Paper Award, ICCIT, Cox’s Bazar, Bangladesh.
2023/12 Best Paper Award, ICTP2023, BUET, Dhaka, Bangladesh.
2023/02 Best Paper Award, ECCE2023, CUET, Chattogram, Bangladesh.
2022/12 Best Paper Award, ICPRSET2022, RU, Rajshahi, Bangladesh.
2022/12 IEEE AP-S Japan Student Award, Tokyo Chapter, Japan.
2022/03 Saga University President Award, Saga University, Japan.
2021/12 3rd Best Paper Award, ICTP2021, BUET, Dhaka, Bangladesh.
2021/08 Best Paper Award, ICSCT2021, Dhaka, Bangladesh.
2020/12 Student Presentation Award, ICETC2020, Japan.
2020/08 Outstanding Student Award 2019, SRW Research Committee, Japan.
2020/03 Saga University President Award, Saga University, Japan.
2019/12 Student Encouragement Award, IEEE AP-S, Tokyo Chapter, Japan.
2019/08 Best Paper Award, APCAP2019, Incheon, Korea.
2019/02 2018 IEEE Student Encouragement Award, IEEE, Fukuoka Branch, Japan.