Journal Papers

1. H.-C. Chang, C.-H. Tseng, and C.-T. M. Wu, “A 24 GHz frequency-locked loop-based microwave microfluidic sensor for concentration detection,” accepted for publication in IEEE J. Sel. Area. Sensors.
2. C.-H. Tseng and C.-H. Pai, and H.-C. Chang, “A new microwave oscillator-based microfluidic dielectric sensor,” IEEE Trans. Microw. Theory Techn., vol. 72, no. 1, pp. 628-637, Jan. 2024.
3. T.-K. Nguyen and C.-H. Tseng, “New radio-frequency liquid permittivity measurement system using filter-based microfluidic sensor,” IEEE Sensors J., vol. 23, no. 12, pp. 12785-12795, Jun. 2023.
4. C.-H. Tseng and C.-Y. Yang, “Novel microwave frequency-locked-loop-based sensor for complex permittivity measurement of liquid solutions,” IEEE Trans. Microw. Theory Techn., vol. 70, no. 10, pp. 4556–4565, Oct. 2022.
5. C.-H. Tseng and Y.-T. Lee, “Microwave near-field self-injection-locked wrist pulse sensor with Mohr- discriminator demodulator,” IEEE Microw. Wireless Compon. Lett., vol. 32, no. 3, pp. 202–205, Mar. 2022.
6. T.-K. Nguyen and C.-H. Tseng, “A new microwave humidity sensor with near-field self-injection-locked technology,” IEEE Sensors J., vol. 21, no. 19, pp. 21520-21528, Oct. 2021.
7. F.-K. Wang, C.-T. M. Wu, T.-S. Horng, C.-H. Tseng, S.-H. Yu, C.-C. Chang, “Review of self-injection-locked radar systems for noncontact detection of vital signs,” IEEE J. Electromagn., RF, Microw. Med. Biol., vol. 4, no. 4, pp. 294–307, Dec. 2020.
8. C.-H. Tseng, T.-J. Tseng and C.-Z. Wu, “Cuffless blood pressure measurement using a microwave near-field self-injection-locked wrist pulse sensor,” IEEE Trans. Microw. Theory Techn., vol. 68, no. 11, pp. 4865–4874, Nov. 2020.
9. C.-H. Tseng and C.-Z. Wu, “A novel microwave phased- and perturbation-injection-locked sensor with self-oscillating complementary split-ring resonator for finger and wrist pulse detection,” IEEE Trans. Microw. Theory Techn., vol. 68, no. 5, pp. 1933–1942, May 2020.
10. Y. Yuan, C. Lu, A. Y.-K. Chen, C.-H. Tseng, C.-T. M. Wu, “Concurrent vital sign and location detection for multi-target using metamaterial-integrated self-injection-locked quadrature radar sensor,” IEEE Trans. Microw. Theory Techn., vol. 67, no. 12, pp. 5429–5437, Dec. 2019.
11. C.-H. Tseng and Y.-H. Lin, “24-GHz self-injection-locked vital-sign radar sensor with CMOS injection-locked frequency divider based on push-push oscillator topology,” IEEE Microw. Wireless Compon. Lett., vol. 28, no. 11, pp. 1053–1055, Nov. 2018.
12. C.-H. Tseng, L.-T. Yu, J.-K. Huang, and C.-L. Chang, “A wearable self-injection-locked sensor with active integrated antenna and differentiator-based envelope detector for vital-sign detection from chest wall and wrist,” IEEE Trans. Microw. Theory Techn., vol. 66, no. 5, pp. 2511–2521, May 2018.
13. M.-D. Wei, Y.-T. Chang, D. Wang, C.-H. Tseng, and R. Negra, “Balanced RF rectifier for energy recovery with minimized input impedance variation,” IEEE Trans. Microw. Theory Techn., vol. 65, no. 5, pp. 1598-1604, May 2017.
14. C.-H. Tseng, and T.-S. Huang, “Microwave voltage-controlled oscillator with harmonic-suppressed stepped-impedance resonator filter,” IEEE Trans. Circuits Syst. II, Exp. Briefs, vol. 64, no. 5, pp. 520-524, May 2017.
15. C.-H. Tseng, and Y.-T. Chen, “Design and implementation of new 3-dB quadrature couplers using PCB and silicon-based IPD technologies,” IEEE Trans. Compon., Packag., Manuf. Technol., vol. 6, no. 5, pp. 675-682, May 2016.
16. C.-H. Tseng, C.-H. Mou, C.-C. Lin, and C.-H. Chao, “Design of microwave dual-band rat-race couplers in printed-circuit board and GIPD technologies,” IEEE Trans. Compon., Packag., Manuf. Technol., vol. 6, no. 2, pp. 262-271, Feb. 2016.
17. C.-H. Chao, T.-W. Hsu, and C.-H. Tseng, “Giving Doppler more bounce: A 5.8 GHz microwave high-sensitivity Doppler radar system,” IEEE Microw. Mag., vol. 17, no. 1, pp. 52-57, Jan. 2016.
18. C.-L. Chang, C.-H. Tseng, and Hong-Yeh Chang, “A new monolithic Ka-band filter-based voltage-controlled oscillator using 0.15-mm GaAs pHEMT technology,” IEEE Microw. Wireless Compon. Lett., vol. 24, no. 2, pp. 111-113, Feb. 2014.
19. C.-L. Chang and C.-H. Tseng, “New compact Ka-band CPW rat-race coupler using GaAs MMIC technology,” Electronics Lett., vol. 49, no. 19, pp. 1227-1229, Sep. 2013.
20. C.-L. Chang and C.-H. Tseng, “New compact Wilkinson power divider using two-section asymmetrical T-structures,” Electronics Lett., vol. 49, no. 8, pp. 546-547, Apr. 2013.
21. C.-H. Tseng, Y.-W. Huang, and C.-L. Chang, “Microwave low phase-noise oscillators using T-shaped stepped-impedance-resonator filters,” IET Microw. Antennas Propag., vol. 6, no. 12, pp. 1374-1380, Sep. 2012.
22. C.-H. Tseng and C.-L. Chang, “Design of low phase-noise microwave oscillator and wideband VCO based on microstrip combline bandpass filters,” IEEE Trans. Microw. Theory Techn., vol. 60, no. 10, pp. 3151-3160, Oct. 2012.
23. C.-H. Tseng and C.-H. Wu, “Design of compact branch-line couplers using p-equivalent artificial transmission lines,” IET Microw. Antennas Propag., vol. 6, no. 9, pp. 969-974, Jun. 2012.
24. C.-H. Tseng and C.-L. Chang, “A rigorous design methodology for compact planar branch-line and rat-race couplers with asymmetrical T-structures,” IEEE Trans. Microw. Theory Techn., vol. 60, no. 7, pp. 2085-2092, Jul. 2012.
25. C.-L. Chang and C.-H. Tseng, “Design of low phase-noise oscillator and voltage-controlled oscillator using microstrip trisection bandpass filter,” IEEE Microw. Wireless Compon. Lett., vol. 21, no. 11, pp. 622-624, Nov. 2011.
26. C.-H. Tseng and C.-H. Wu, “Compact planar Wilkinson power divider using p-equivalent shunt-stub-based artificial transmission lines,” Electronics Lett., vol. 46, no. 19, pp. 1327 – 1328, Sep. 2010.
27. C.-H. Tseng, “Compact LTCC rat-race couplers using multilayered phase-delay and phase-advance T-equivalent sections,” IEEE Trans. Adv. Packag., vol. 33, no. 2, pp. 543-551, May 2010.
28. C.-H. Tseng and H.-Y. Shao, “A new dual-band microstrip bandpass filter using net-type resonators,” IEEE Microw. Wireless Compon. Lett., vol. 20, no. 4, pp. 196-198, Apr. 2010.
29. C.-H. Tseng and Y.-C. Hsiao, “A new broadband Marchand balun using slot-coupled microstrip lines,” IEEE Microw. Wireless Compon. Lett., vol. 20, no. 3, pp. 157-159, Mar. 2010.
30. C.-H. Tseng and H.-J. Chen, “Compact rat-race coupler using shunt-stub-based artificial transmission lines,” IEEE Microw. Wireless Compon. Lett., vol. 18, no. 11, pp. 734-736, Nov. 2008.
31. C.-H. Tseng, C.-J. Chen, and T.-H. Chu, “A Low-Cost 60-GHz Switched-Beam Patch Antenna Array with Butler Matrix Network,” IEEE Antennas Wireless Propag. Lett., vol. 7, pp. 432-435, 2008.
32. C.-H. Tseng and C.-L. Chang, “An image reject mixer with composite right/left-handed quadrature power splitter and IF hybrid,” J. Electromagn. Waves Appl., vol. 22, pp. 1557-1564, 2008.
33. C.-H. Tseng and T.-G. Ma, “Measurement of differential-mode and common-mode scattering parameters of symmetric coupled-line discontinuity structure,” IET Microw. Antennas Propag., vol. 2, no. 3, pp. 242-247, Apr. 2008.
34. C.-H. Tseng and C.-L. Chang, “Improvement of return loss bandwidth of balanced amplifier using metamaterial-based quadrature power splitters,” IEEE Microw. Wireless Compon. Lett., vol. 18, no. 4, pp. 269-271, Apr. 2008.
35. C.-H. Tseng and C.-L. Chang, “A broadband quadrature power splitter using metamaterial transmission line,” IEEE Microw. Wireless Compon. Lett., vol. 18, no. 1, pp. 25-27, Jan. 2008.
36. C.-H. Tseng and C.-L. Chang, “Wide-band balun using composite right-/left-handed transmission line,” Electronics Lett., vol. 43, no. 21, pp. 1154-1155, Oct. 2007.
37. C.-H. Tseng and T.-H. Chu, “Measurement of frequency-dependent equivalent width of substrate integrated waveguide,” IEEE Trans. Microw. Theory Techn., vol. 54, no. 4, pp. 1431-1437, Apr. 2006.
38. T.-G. Ma and C.-H. Tseng, “An ultrawideband coplanar waveguide-fed tapered ring slot antenna,” IEEE Trans. Antennas Propag., vol. 54, no. 4, pp.1105-1110, Apr. 2006.
39. C.-H. Tseng and T.-H. Chu, “Three frequency-swept microwave imaging arrangements of conducting objects using multi-source illumination,” Bulletin of the College of Engineering of National Taiwan University, no. 95, pp.35-42, Oct. 2005.
40. C.-H. Tseng and T.-H. Chu, “An effective usage of vector network analyzer for microwave imaging,” IEEE Trans. Microw. Theory Techn., vol. 53, no. 9, pp. 2884-2891, Sep. 2005.
41. C.-F. Chen, T.-Y. Huang, C.-H. Tseng, R.-B. Wu, and T.-W. Chen, “A miniaturized multilayer quasi-elliptic bandpass filter with aperture-coupled microstrip resonators,” IEEE Trans. Microw. Theory Techn., vol. 53, no. 9, pp. 2688-2692, Sep. 2005.
42. C.-H. Tseng and T.-H. Chu, “Improvement of quasi-monostatic frequency-swept microwave imaging of conducting objects using illumination diversity technique,” IEEE Trans. Antennas Propag., vol. 53, no. 1, pp.305-312, Jan. 2005.
43. C.-H. Tseng and T.-H. Chu, “Principle and results of microwave diversity imaging of conducting objects using multisource illumination,” IEE Proc.¾Microw., Antennas Propag., vol.151, no.2, pp. 149-155, Apr. 2004.
44. T.-H. Chu, C.-H. Tseng, S.-D. Yang and C.-I. Chi, “A Ka-band receiving terminal for measuring ROCSAT-1 ECP beacon signal”, Journal of the Chinese Institute of Engineers, vol. 24, no. 1, pp.29-36, Jan., 2001.