If You Want Something, Go Get It. Period.

Education

Ph.D., Communications Engineering, National Chiao Tung University, Taiwan, 2012.
M.S., Communications Engineering, National Chiao Tung University, Taiwan, 2006.
B.S., Electrical Engineering, Yuan-Ze University, Taiwan, 2004.

Area of Research

Microwave/RF Integrated Circuit & System
Analog Integrated Circuit
Bio-sensor Design
Microwave Radar Circuit & System

Experiences

Journal Reviewer of IEEE Internet of Things (2022-2023), IEEE Transactions on Circuits and Systems II: Express Briefs (IEEE TCAS2, 2018-2022), IEEE Transactions on Circuits and Systems I: Regular paper (IEEE TCAS1, 2019-2021), IEEE Transactions on Biomedical Circuits and Systems (IEEE TBioCAS, 2019-2021), International Journal of RF and Microwave Computer-Aided Engineering (2019-2020), Technology and Health Care (THC, 2022-2024), Sensors (2024), International Journal of Electronics (2017-2019), IET Microwaves, Antennas & Propagation (2017-2018), IEEE Antennas and Wireless Propagation Letters (IEEE AWPL, 2017-2018), IEEE Access (2017-2024), IEEE Sensors Journal (2017-2020), Journal of Imaging Science and Technology (JIST, 2017-2018), Electronics Letters (EL, 2015), IEEE Transactions on Microwave Theory and Techniques (IEEE TMTT, 2014-2016), IEEE Transactions on Very Large Scale Integration Systems (IEEE TVLSI, 2013), IEEE Transactions on Electron Devices (IEEE TED, 2013), Analog Integrated Circuit and Signal Processing (2013-2020), and Journal Electrical Engineering and Technology (JEET, 2013).
Session Chair of IET International Conference on Engineering Technologies and Applications (IET ICETA 2022), Symposium on Engineering, Medicine and Biology Applications (SEMBA 2016), Advanced Electrical and Electronic Technology (2015-2016).
Track Chair of the National Symposium on Telecommunications (NST2022)
Technical Program Committees (TPC) of IET International Conference on Engineering Technologies and Applications (IET ICETA 2022), International Symposium on Engineering and Technology (ISET 2022), Symposium on Engineering, Medicine and Biology Applications (SEMBA 2016, 2019), Electromagnetic Workshop on a Bridge to the Future (2019-2020), IEEE International Conference on Consumer Electronics (IEEE ICCE-TW 2017), International Symposium on Next-Generation Electronics (ISNE 2014), Remote Sensing Satellite Technology Workshop (RSSTW 2014).
2024-Present Chair in Department of Electrical Engineering, National Yunlin University of Science and Technology (NYUST).
2023-Present Professor in Department of Electrical Engineering, National Yunlin University of Science and Technology (NYUST).
2021-2024 Division Director in Office of Research and Development, National Yunlin University of Science and Technology (NYUST).
2020-2023 Associate Professor in Department of Electrical Engineering, National Yunlin University of Science and Technology (NYUST).
2019-2020 Associate Professor in Department of Electrical Engineering, Feng Chia University (FCU).
2017-2019 Assistant Professor in Department of Electrical Engineering, Feng Chia University (FCU).
2017-Present IEEE Member
2015-2017 Assistant Professor in Department of Electrical Engineering, Chinese Culture University (PCCU).
2014-2014 RF Circuit Design Engineer in Industrial Technology Research Institute (ITRI).
2013-2014 Senior Engineer (Project Leader) in Radiant Opto-Electronics Corporation.
2011-2013 Assistant Research Fellow in National Applied Research Laboratory (NARL).
2006-2011 RF/analog Integrated Circuit Design Engineer in Industrial Technology Research Institute (ITRI).

Publications (Journal papers)

• W. -P. Hung and C. -H. Chang*, “Dual-Mode Embedded Impulse-Radio Ultra-Wideband Radar System for Biomedical Applications,” Sensors, vol. 24, no. 17, 5555, Aug, 2024. (SCI)
• W. -W. Hu, C. -H. Chang*, G. -X. Yang and C. -P. Li, “New Paradigm for Contactless Vital-Sign Sensing Using UWB Radar and Hybrid Optical Wireless Communications,” IEEE Embedded Systems Letters, vol. 15, no. 3, pp. 121-124, Sep, 2023. (SCI)
• C. -H. Chang* and C. -S. Tai, “A Crystal-Less Embedded Cardiorespiratory Radar System With Duty-Cycled and Pulse-Based Detection for Vital Signs,” IEEE Transactions on Microwave Theory and Techniques, vol. 71, no. 3, pp. 1274-1284, Mar. 2023. (SCI) 
• C. -H. Chang*, J.-Y. Chen, C.-T. Shen, M.-J. Tsai, and T.-S. Tai , “Reflection-type Phase Shifter Integrated With Tunable Power Attenuation Mechanism for Sub-6 GHz Wireless Applications,” IEEE Access, vol. 10, pp. 115532-115540, Nov. 2022. (SCI) 
• T.-M. Ou, W. -W. Hu*, C. -H. Chang, C.-C. Hsu, and C.-H. Wang, “Experimental demonstration of noncontact vital-sign measurement using pulse radar,” Technology and Health Care, vol. 30, no. 5, pp. 1223-1231, Sep. 2022. (SCI)
• H. -T. Chou, S. -J. Chou, J. D. S. Deng, C. -H. Chang and Z. -D. Yan, “LTCC-based Antenna-in-Package Array for 5G User Equipment with Dual-Polarized End-Fire Radiations at Millimeter-Wave Frequencies,” IEEE Transactions on Antennas and Propagation, vol. 70, no. 4, pp. 3076-3081, Apr. 2022. (SCI)
• C. -H. Chang and W. -W. Hu, “Design and Implementation of an Embedded Cardio-Respiratory Monitoring System for Wheelchair Users,” IEEE Embedded Systems Letters, vol. 13, no. 4, pp. 150-153, Dec. 2021. (SCI)
• C. -H. Chang* and W.-H. Chen, “Vital-sign Processing Receiver with Clutter Elimination using Servo Feedback Loop for UWB Pulse Radar System,” IEEE Transactions on Very Large Scale Integration Systems, vol. 28, no. 1, pp. 292-296, Jan. 2020. (SCI)
• Chen-Lin Chang, Chia-Hung Chang*, Da-Huei Li, Wei-Wen Hu, Yi-Lun Lo, and Chih-Peng Li, “An impulse radio duty-cycled radar with ultra-wideband VCO using frequency hopping technique,”IEICE Electronics Express, vol. 16, no. 13, pp. 1-5, Jun. 2019. (SCI)
• W.-H. Chen*, C.-H. Chang, H.-Y. Shih, T.-W. Chiu, and C.-N. Kuo, “Fully integrated bio-chip with high sensitivity for electrochemical sensing application,” Electronics Letters, vol. 55, no. 8, pp. 438-440, Apr. 2019. (SCI)
• Chia-Hung Chang*, “A Forward-body-bias CMOS LNA with Ultra-low Device Junction Leakage using Intrinsic Self-balanced Pseudo resistor,” IEEE Transactions on Circuits and Systems–II: Express Briefs, vol. 66, no. 4, pp 697-701, Apr. 2019. (SCI)
• Wei-Hsien Chen, Chia-Hung Chang*, Horng-Yuan Shih, Tzai-Wen Chiu, and Chien-Nan Kuo, “A Charge Accumulation-free Voltage-controlled Functional Electrical Stimulator with Bi-phasic Sinusoidal Stimulation,”Analog Integrated Circuits and Signal Processing, vo. 101, no. 2, pp 331-339, Feb. 2019. (SCI)
• Hsi-Tseng Chou*, Chia-Hung Chang, and Yen-Ting Chen, “Ferrite Circulator Integrated Phased Array Antenna Module for Dual-Link Beamforming at Millimeter Frequencies,” IEEE Transactions on Antennas and Propagation, vo. 66, no. 11, pp 5934-5942, Nov. 2018. (SCI)
• Hsi-Tseng Chou*, Chia-Hung Chang, and Ying-Shan Chen, “Multi-Beam Microstrip Patch Antennas Excited by Parallel-Plate Beam-forming Network with Shaped Reflecting Boundary and Optimized Slot Feeding Transition Structures,” Radio Science, vol. 53, no. 11, pp. 1426-1437, Oct. 2018. (SCI)
• Chia-Hung Chang*, “A programmable analog baseband filter with DC offset reduction using servo loop feedback,” International Journal of Circuit Theory and Applications, vol. 46, no. 7, pp. 1328-1337, Feb. 2018. (SCI)
• Chia-Hung Chang*, Wei-Hsien Chen, and Cihun-Siyong Alex Gong, Wei-Wen Hu, “A Direct Conversion Transmitter with Digital-Assisted DC offset and I/Q phase Calibration,” International Journal of Circuit Theory and Application, vol. 45, no. 12, pp. 2073-2084, Jun. 2017. (SCI)
• Wei-Ping Hung, Chia-Hung Chang*, and Tsern-Huei Lee, “Real-Time and Noncontact Impulse Radio Radar System for μm Movement Accuracy and Vital-Sign Monitoring Applications,” IEEE Sensors Journal, vol. 17, no. 8, pp. 2349 – 2358, Apr. 2017. (SCI)
• Chia-Hung Chang*, Cihun-Siyong Alex Gong, Jian-Chiun Liou, Yu-Lin Tsou, Feng-Lin Shiu, Hwann-Kaeo Chiou, and Po-Hsun Tu, “A 260-uW Down-conversion Demodulator for MICS-band Receiver,” Journal of Circuits, Systems and Computers, vol. 26, no. 02, pp.1750027:1-10, Sep. 2016. (SCI)
• Cihun-Siyong Gong, Chia-Hung Chang*, Feng-Lin Shiu, Hwann-Kaeo Chiou and Yih-Shiou Hwang, “A Front-end Receiver with a Dual Cross-coupling Technique for MICS Applications,” International Journal of Circuit Theory and Applications, vol. 45, no. 4, pp. 502-514, Jul. 2016. (SCI)
• Cihun-Siyong Gong, Chia-Hung Chang, and Yu-Lin Tsou, “Fully Integrated 2.45-GHz OOK Receiver for Wireless Sensor Networks,” International Journal of Circuit Theory and Applications, vol. 44, no. 11, pp. 1926-1941, Feb. 2016. (SCI)
• Chia-Hung Chang*, Tao Wang, and Christina F. Jou, “A Dual Cross Coupling LNA with Forward Body Bias Techniques,” Electronics Letters, vol.48, no.18, pp.1100-1102, Aug. 2012. (SCI)
• Chia-Hung Chang* and Christina F. Jou, “A Dierct Conversion Merged LNA-I/Q-Mixer with Noise Reduction Using Dual Cross Coupling for WiMAX/WiBro Applications,” IEEE Microwave and Wireless Components Letters, vol. 22, no. 1, pp. 32-34, Jan. 2012. (SCI)
• Chia-Hung Chang* and Christina F. Jou, “A Calibrated Direct Conversion Front-end Transmitter with Resonant Matching Techniques for Mobil WiMAX/WiBro Applications,” Analog Integrated Circuits and Signal Processing, vol. 71, no. 2, pp. 211-219, Aug. 2011. (SCI)
• H.-J. Wei, C. Meng, C.-H. Chang and G.-W. Huang, “UWB Gilbert Downconverter with Lumped-distributed Phase-inverter Rat-race Coupler Based on Chebyshev Band-broadening Technique,” Electronics Letters, vol. 47, no. 15, pp. 859-861, Jul. 2011. (SCI)
• Hung-Ju Wei, Chinchun Meng, Sheng-Wen Yu, and Chia-Hung Chang, “A Chebyshev-Response Step-Impedance Phase-Inverter Rat-Race Coupler Directly on Lossy Silicon Substrate and Its Gilbert Mixer Application,” IEEE Transactions on Microwave Theory and Techniques, vol. 59, no. 4, pp. 882-893, Apr. 2011. (SCI)
• Sheng-Che Tseng, Chinchun Meng, Chia-Hung Chang, Shih-Hsien Chang, and Guo-Wei Huang, “A Silicon Monolithic Phase-Inverter Rat-Race Coupler Using Spiral Coplanar Striplines and Its Application in a Broadband Gilbert Mixer,” IEEE Transactions on Microwave Theory and Techniques, Vol. 56, no. 8, pp. 1879-1888, Jul. 2008. (SCI)
• Sheng-Che Tseng, Chinchun Meng, Chia-Hung Chang, Chih-Kai Wu, and Guo-Wei Huang, “Monolithic Broadband Gilbert Micromixer With an Integrated Marchand Balun Using Standard Silicon IC Process,” IEEE Transactions on Microwave Theory and Techniques, vol. 54, no. 12, pp. 4362-4371, Dec. 2006. (SCI)

Publications (Conf. papers)

• M. -Z. Kuo, T. -M. Koo, S. -C. Chen, C. -H. Chang, M. -S. Lin and C. -I. G. Hsu, “An RFID Reader Antenna Design with Circular Polarization for Sports-Event and –Timing Applications,” 2023 IEEE 12th Global Conference on Consumer Electronics (GCCE), Nara, Japan, 2023, pp. 1133-1134.
• C. -H. Chang et al., “A Sub-1GHz Wearable Radar Sensor for Artery Detection,” 2023 Photonics & Electromagnetics Research Symposium (PIERS), Prague, Czech Republic, 2023, pp. 1152-1156,
• Pin-You Chen, Bo-Yuan Chen, Chia-Hung Chang, Jheng-Yu Cheng, Syuan-Sou Chen, Meng-Man Yang, and Wei-Wen Hu, “An RF-DC Converter IC for Power Charging Application,” 2022 IET International Conference on Engineering Technologies and Applications (IET ICETA) , na, 2022, Changhua, Taiwan.
• Chia-Hung Chang, Shih-Chung Tuan, and Tse Sheng Tai, “Lumped Reflection-type Phase-shifter for Sub-6 GHz application,” 2021 International Symposium on Antennas and Propagation (ISAP), 2021, pp. 1-2, Taipei, Taiwan.
• Shih Chung Tuan, Chia Hung Chang, “Side-lobes Suppression for 5G Millimeter Wave Sparse Array Antenna,” 2021 International Symposium on Antennas and Propagation (ISAP), 2021, pp. 1-2, Taipei, Taiwan.
• Z. -D. Yan, H. -T. Chou, S. J. Chou, D. Joseph D. S. and C. -H. Chang, “Dual-Polarization Antenna-in-Package of Column Arrays by LTCC Fabrication Process for Hybrid Broad and End-fire Radiations at 28GHz,” 2021 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT), 2021-10, pp. 1-2, Hualien, Taiwan.
• T. Chang, H. -T. Chou and C. -H. Chang, “A Numerical Method for Fast Filtering Antenna Analysis with Arbitrary Reference Impedances at Millimeter-wave Frequencies,” 2021 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT), 2021-10, pp. 1-2, Hualien, Taiwan.
• Wei-Hsien Chen, Chia-Hung Chang*, and Chien-Nan Kuo, “Vital-sign Radar with Digital-assisted Calibration for Noise Reduction and DC Offset Elimination,” Progress In Electromagnetics Research Symposium (PIERS 2019) , na , 2019-06, Rome, Italy.
• W. Chen, C. Chang, C. Kuo and C. Hsu, “Non-contact Pulse-based Radar with an Excited RF Pulse Generator for Vital-sign Application,” 2019 PhotonIcs & Electromagnetics Research Symposium – Spring (PIERS-Spring), 2019, pp. 1569-1573, Rome, Italy.
• Jian-Yu Huang, Chia-Chin Hsu, Chia-Hung Chang*, and Wei-Wen Hu, “Non-contact and Real-time Pulse-based radar with Sensitivity Improvement for Vital-sign Monitoring,” 2018 Asia-Pacific Microwave Conference (APMC) , pp 1-3 , 2018-11. Kyoto, Japan.
• Chia-Hung Chang and Wei-Ping Hung, “On Investigation of Near-field Antenna for Pulse-based Vital-sign Monitoring Application,” 2018 IEEE International Symposium on Electromagnetic Compatibility and 2018 IEEE Asia-Pacific Symposium on Electromagnetic Compatibility (EMC/APEMC), 2018, pp. 126-126 , Suntec City, Singapore.
• Wei-Ping Hung, Tsern-Huei Lee and Chia-Hung Chang, “Application of Pulsed Near-Field System for Heart Rate Sensing,” Progress In Electromagnetics Research Symposium (PIERS 2017) , na , 2017-11. Nanyang Technological University.
• Zhi-Da Yan, Hsi-Tseng Chou, Ying-Shan Chen, and Chia-Hung Chang, “A Ka-band Phased Array of Antennas with Parallel-plate Parabolic Reflector Feeding Network for High Energy-Efficient Radiation,” 2017 International Symposium on Antennas and Propagation (ISAP), 2017, pp. 1-2 . Phuket, Thailand.
• Wei-Ping Hung, Tsern-Huei Lee and Chia-Hung Chang, “Application of Smart Appliances to Wireless Area Network and Module Development,” 2017 International Conference on Electron Devices and Solid-State Circuits (EDSSC), 2017, pp. 1-2, Hsinchu, Taiwan.
• Hsi-Tseng Chou, Ying-Shan Chen, and Chia-Hung Chang, “A Ka-band Parallel-plate Parabolic Reflecting Structure to Implement the Beam Forming Networks for Phased Array of Antennas,”2017 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC), 2017, pp. 366-368, Seoul, Korea (South).
• Wei Ping Hung, Tsern-Huei Lee and Chia-Hung Chang, “Non-invasive Detection of Object by UWB Radar,” 2017 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC), 2017, pp. 169-171, Seoul, Korea (South).
• Wei-Ping Hung and Chia-Hung Chang, “A variable gain envelope modulator with hybrid topology for high linearity/efficiency polar transmitter application,” 2015 Asia-Pacific Microwave Conference (APMC), 2015, pp. 1-3, Nanjing, China.

Patents

• “生物電子系統,” Taiwan Patent (201811263), Issue Date: Apr. 1, 2018.
• “電感電容振盪器,” Taiwan Patent (I450492), Issue Date: Aug. 21, 2014.
• “注入锁定分频器”, China Patent (ZL201010274917.2), Issue Date: Jun. 18, 2014.
• “Inductance-Capacitance (LC) Oscillator,” US Patent (US8717112 B2), Issue Date: May. 6, 2014.
• “注入鎖定除頻器,” Taiwan Patent (I431943), Issue Date: Mar. 21, 2014.
• “Injection-locked frequency divider,” US Patent (US 8493105 B2), Issue Date: Jul. 23, 2013.
• “Injection-locked frequency divider,” US Patent (US 8390343 B2), Issue Date: Mar. 5, 2013.

Chia-Hung Chang was born in Taipei, Taiwan, R.O.C., in 1982. He received the B.S. degree in electrical engineering from Yuan Ze University, Taiwan, in 2004, and the M.S. and Ph.D degrees in communication engineering from National Chiao Tung University, Hsinchu, Taiwan, in 2006 and 2011, respectively. He joined the System-on-Chip Technology Center, Industrial Technology Research Institute, Hsinchu in 2006, as an RF/analog integrated circuit design enginnering. He was responsible for RF front-end transceiver for wireless communication system. From 2011 to 2013, he worked on CMOS image sensor read-out circuit as an assistant research fellow in the National Applied Research Laboratory. In 2013, he was a senior engineer in the Engineering Department of Radiant Opto-Electronics Corporation as a project leader handling power line communication system for lighting. From 2015 to 2017, he joined Chinese Culture University, Taipei, Taiwan, where he was an Assistant Professor of Electrical Engineering. He joined Feng Chia University, Taichung, Taiwan as an Associate Professor in department of Electrical Engineering during 2017 to 2020. Since 2020, he joins National Yunlin University of Science and Technology (NYUST), where he is now a Professor of Electrical Engineering. His current research involves RF/microwave integrated circuits, radar system circuit design and biomedical circuit.