Research Area
Dr. Ta-Shun Chu has devoted the majority of his efforts on integrated radar chip design which utilize electrical engineering principles and the state-of-the-art integrated technologies. Its involved areas cover analog integrated circuit design, mixed-signal integrated circuit design, radio frequency integrated circuit design and microwave integrated circuit design.
The following are the types of radar chip designs that Dr. Ta-Shun Chu focuses on:
- Frequency-Modulation Continuous-Wave Single-Channel Radar
- Impulse-Radio Direct-Sampling Single-Channel Radar
- Continuous-Wave Phase-Array Radar
- Impulse-Radio Timed-Array Radar
These radar chips can be widely used in military and civilian fields.
The main research contribution of the CMOS radar chips is as follows:
- Fully integrated design— the interface mainly constants four ports, the RF I/O to antenna and the Digital I/O to FPGA. It leads real-time applications.
- RF direct sampling technique— the radar chip can reconstruct the scatting waveforms. It is provide the fully freedom of digital signal processing.
- SNR improvement— averaging technique is implemented in the analog domain for signal amplification and SNR improvement.
- Digital-to-time converter design— a variety of high precise digital-to-time converter (DTC) are designed and implemented with sub-picosecond timing resolution in the reported CMOS radars. The developed techniques include External-Charge-Injection PLL Based DTC, Frequency-defied Vernier PLL based DTC, and Frequency-Defied Reference-Align Cyclic Vernier TDC.
- Scalable architecture— the developed radar can be extend to an antenna array. Not only time-of-arrival but also direct-of-arrival can be characterized by the antenna array radar system.
- Single antenna FMCW radar design— the continuous wave radar system only uses a single antenna, and there is no transceiver switch, which can achieve the same channel for transmitting and receiving signals, so as to simplify the complexity of the radar system.
The picture below shows the radar chips that Dr. Ta-Shun Chu participated in and the corresponding publication conference or journal. It is hoped that the technology of these radar chips can be truly integrated with the industry and can be applied to the military and civilian fields.
Project Grand
| Fiscal Year | Associated Agency | Project Name |
| During Associate Professor | ||
| 2020 | Ministry of Science and Technology | Chip and System Design of Phased Array Radar |
| 2020 | Novatek Microelectronics Corp. | Analysis and Optimization of Jitter for Bang-Bang PLL and Bang-Bang CDR |
| 2019 | Ministry of Science and Technology | Frequency Modulation CW Radar Integrated Single-Chip Design Using All-Digital Phase-Locked Loop for Power Oscillator and Delta-Sigma Modulator |
| 2018 | Ministry of Science and Technology | Frequency Modulation CW Radar Integrated Single-Chip Design Using All-Digital Phase-Locked Loop for Power Oscillator and Delta-Sigma Modulator |
| 2018 | Industrial Technology Research Institute | Research of Frequency Synthesizer in Millimeter wave frequency |
| 2018 | Episil Technologies Inc | Fractional-N Digital PLL with Binary Phase Detector |
| 2018 | Super Flower Computer Inc. | A 10-Bit 640Ms/S Analog to Digital Converter |
| 2017 | Ministry of Science and Technology | A Single-Port Duplexing Frequency-Modulated-Continuous-Wave Radar |
| 2017 | National Chung-Shan Institute of Science and Technolog | Research of phase array seeker and missile system compatibility |
| 2017 | Industrial Technology Research Institute | Research of Low Dropout Linear Regulator |
| 2016 | Ministry of Science and Technology | A 10-Bit 4GS/S ADC for 5G Wireless Communication System |
| 2016 | National Chung-Shan Institute of Science and Technolog | Intelligent Electric National Project –Sub-project: A Home Monitoring of Infants and Young Children’s Sleep-Disordered Breathing System |
| 2016 | Industrial Technology Research Institute | Research of Wideband Receiver Frontend |
| 2015 | Ministry of Science and Technology | Intelligent Electric National Project — Sleep apnea home monitoring system Sub-project: Sleep breathing disorder system for infants and young children at home |
| 2015 | National Chung-Shan Institute of Science and Technology | Research of electric beam scanning system |
| During Assistant Professor | ||
| 2014 | National Tsing Hua University | ITRI & NTHU Project: Iot Data Link Baseband System Specification Evaluation |
| 2014 | Ministry of Science and Technology | Intelligent Electric National Project — Wideband CMOS Radar System for Respiratory and Gait Analysis in Patients with Chronic Airway Diseases Sub-project: 1-18 GHz Scalable Impulse-Radio Sampling Radar Frontend |
| 2014 | Industrial Technology Research Institute | ITRI & NTHU Project: Iot Data Link Baseband System Specification Evaluation |
| 2014 | HTC Corporation | Non-Contact Sensing Module Chip Design |
| 2014 | National Chung-Shan Institute of Science and Technology | Research of Miniaturized active electric scanning system |
| 2013 | Ministry of Science and Technology | Intelligent Electric National Project — Wideband CMOS Radar System for Respiratory and Gait Analysis in Patients with Chronic Airway Diseases Sub-project: 1-18 GHz Scalable Impulse-Radio Sampling Radar Frontend |
| 2013 | National Chung-Shan Institute of Science and Technology | Advanced Technologies of Miniaturized Active Electric Scanning System |
| 2013 | Ministry of Science and Technology | Intelligent Electric National Project — Wideband CMOS Radar System for Respiratory and Gait Analysis in Patients with Chronic Airway Diseases Sub-project: 1-18 GHz Scalable Impulse-Radio Sampling Radar Frontend |
| 2013 | Industrial Technology Research Institute | Antenna Near Field Measurement Technology-Oscillator Synchronization for Scalable Micro-Radio Architecture |
| 2012 | National Chung-Shan Institute of Science and Technology | Midterm Report of Miniaturized Active Electric Scanning System |
| 2012 | Industrial Technology Research Institute | V-band Research and development Integrated Circuit Module |
| 2011 | Ministry of Science and Technology | Highly Integrated CMOS Radar System for Wireless Medical Care Monitoring Sub-Project: 3-5GHz Active Radar Frontend |
| 2011 | Ministry of Science and Technology | Wideband CMOS Radar Frontend |
| 2011 | Industrial Technology Research Institute | Micro Radio for Mm-wave Scalable Phased Array |
| 2000 – 2012 | MediaTek | Subproject 5 of NTHU-MTK Embedded-Systems Laboratory Project: Non-Contact Physiological Information and Wireless Sensing Detection |