Microwave & Radio Frequency
Microwaves and radio-frequency (RF) are at the heart of many electronic applications such as cellular phones, WiFi, RFID, GPS, Radar and satellites etc. The research efforts of the Microwave & RF faculty staff embrace both hardware implementations and theoretical studies in electromagnetic theory, antennas and RF, microwave and millimeter-wave circuits and systems for various government, industry and defense related applications, e.g. wireless communications, biomedical and healthcare applications, and satellite and space thrusts. The laboratories in the microwave & RF area own the major measurement instruments for microwave circuits, MMICs and antennas, including antenna anechoic chamber (Fig.1), probe station and pulse based DCIV system up to 50 GHz (Fig.2), and VNA (up to 110 GHz) and spectrum analyzer (50 GHz) and signal generator (40 GHz).
The laboratories in the microwave & RF area also have various commercial RF circuit and EM simulation tools, e.g. ADS, Microwave Office, HFSS, CST, etc. for RF circuit and antenna designs.
Research Focus
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Biomedical Electromagnetic
We develop electromagnetic technologies that improve human health. Our researchers are building systems that can wirelessly power implanted medical devices, sensors capable of monitoring physiological parameters in real-time, and wearable antennas that integrate seamlessly with the human body. These technologies will transform the next generation of biomedical devices, and provide new ways to monitor or treat disease.
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Wireless Photonic Devices
We design miniaturized photonic devices for wireless light delivery deep into living systems. Applications of these devices include activation or inhibition of neural activity using optogenetics and light-based cancer therapy. These technologies enable highly precise therapies by combining the spatiotemporal control of bioelectronics with the molecular selectivity of light. Image of light emitting-device wirelessly powered in a model of the heart. we aim to engineer fully implantable devices for continuous monitoring and treatment in scientific and translational models of disease.
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Translational Wireless Technologies
We study biomedical wireless systems computationally and in large, human-scale animal models. We seek to draw insights from physical principles to develop broad engineering solutions for unmet challenges in system performance. We apply these solutions to demonstrate approaches to wirelessly power and communicate with bioelectronic devices in previously inaccessible regions of the body.
We build state of the art small satellites in the Satellite Technology And Research Centre (STAR) located in NUS. These satellites will be qualified through various environmental testing such as thermal vacuum chamber and vibration test. After the satellites are launched into space, we will operate them from our mission control room in the centre. STAR is set up in NUS to be a world-class centre for advanced distributed satellite systems using multiple satellites flying in formation, swarm or constellation. The objectives of STAR is to advance the satellite technology and train the manpower to meet the industrial needs. STAR focuses on building small satellites that could fly in multiples for formation and constellation flying. It is envision that this will open out new potential applications such as collaborative sensing for the environment, more timely and scalable communication services. Satellite mission of these applications will in general require advanced technology such as active propulsion control of the satellites, highly precise inter-satellite navigation, advanced attitude control etc.
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Metamaterials and Metasurface
We have initiated the program in the research and development of metamaterials and metasurface based electromagnetic engineering, in particular, antenna engineering for 5G wireless communications, satellite communication and radar systems as well as RFID for IoT. We started with the academic research for exploring new physic concepts, then developed the metamaterial based electromagnetic devices and antennas for commercial and defence applications. We have been world-leading research team in R&D of metamaterial-based technologies. Our developed low-profile small-volume wide-bandwidth and low-cost antennas have been licensed to industry and defence partners.
People
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CHEN Xudong E4-06-04 +65 6516 2297 Electromagnetic wave theory and applications Inverse problems and optimization methods Computational Electromagnetics Microwave, optical and acoustic imaging Non-destructive evaluation Metamaterials and their applications Surface plasmon Microscopy |
CHEN Zhi Ning E4-05-09 +65 6516 2124 Applied electromagnetic, metamaterials, and antennas for microwaves, mmW, submmW, and THz systems |
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GUO Yong Xin E4-07-15 +65 6516 2086 Antennas for emerging wireless communications; Implantable/wearable antennas for biomedical applications; MMIC modelling and design; RF energy harvesting and wireless power for biomedical applications and IoTs; RF and Antennas for satellite SAR and Radar applications |
John S. Y. HO E4-07-23 +65 6516 2282 Wireless power transfer across biological tissues and its application to bioelectronic systems |
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Kay-Soon LOW E4-04-17 +65 6516 3590 Satellite, solar energy, power electronics, real time control, sensor network |
LUO Sha E4-08-15 +65 6601 2102 Multilayer planar circuits, microwave filters and millimeter-wave components |
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Koen Mouthaan E4-05-33 +65 6516 4936 Microwave and millimeter-wave circuits and systems, phased array antennas, digital beamforming, design and innovation |
QIU Cheng Wei E4-05-17 +65 6516 2559 Metasurface for structured lights, Metamaterials, Nano-optics, Optical micromanipulation and optical force, Electromagnetic scattering and diffraction |
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YEO Swee Ping E4-05-04 +65 6516 2112 Microwave six-port measuring techniques Electromagnetic modelling of waveguide structures Analysis, design and testing of microstrip components |
YEO Tat Soon E4-07-19 +65 6516 2119 MICs and microstrip antennas Radio wave propagation Synthetic aperture radar Radar cross section prediction and optimisation Wedge diffraction Computed tomography |
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Wang Chao-Fu TL #07-11 6516 7813 |
