S. Kim, W.-S. Yoon, J. Lim, and S.-M. Han, “Accurate microwave circuit co-simulation method based on simplified equivalent modeling,” Micromachines, vol. 14, no. 1847, Sep. 2023.

Y. Jang, C. H. Seong, T. Kang, S.-M. Han, and D. Ahn, “A new Doherty combiner with wide bandwidth for magnitude and phase balance compensation,” J. Electromagn. Eng. Sci., vol. 23, no. 4, pp. 335–361, July 2023.

W. J. Lee, W.-S. Yoon, D. Ahn, and S.-M. Han, “Compact design method for planar antennas with defected ground structures,” Electronics, vol. 2023, no. 12, 2226, May 2023.

M. Salman, Y. Jang, J. Lim, D. Ahn, and S.-M. Han, “Novel Wilkinson power divider with an isolation resistor on a defected ground structure with improved isolation,” Applied Sciences, vol. 11, no. 9, May 2021.

S.-M. Han, J. O. Kim, W.-S. Yoon, J. Lim, and D. Ahn, “Miniaturized design and modeling for spiral defected ground structures on double-layered substrates,” Int. J. RF Microw. Comput. Aided Eng., vol. 30, no. 8, Aug. 2020.

S.-M. Han, Y. Kim, and J.-H. Ahn, “Multi-TSV (Through Silicon Via) error detection using the non-contact probing method,” Applied Computing and Information Technology, Studies in Computational Intelligence, vol. 847, pp. 47-56, Springer Verlag, Germany, 2020.

J. O. Kim, W.-S. Yoon, S.-M. Han, “Frequency-selective beamforming array antenna systems with frequency-dependent phase shifters,” J. Electromagn. Eng. Sci., vol. 19, no. 4. pp. 259–265, Oct. 2019.

S.-J. Lee, W.-S. Yoon, and S.-M. Han, “Planar beam steerable parasitic array antenna system design based on the Yagi-Uda design method,” Int. J. Antennas Propag., vol. 2019, Article ID 8023712, 9 pages, May 2019.

S.-M. Han, J. O. Kim, W.-S. Yoon, J. Lim, and D. Ahn, “Design and characterization of the double-layered defected ground structure transmission line with less radiation effect,” Microw. Opt. Tech. Lett., vol. 61, no. 4, pp. 903–906, April 2019 (Erratum is published in Microw. Opt. Tech. Lett., vol. 62, no. 10, p. 3369, Oct. 2020).

S.-J. Lee, W.-S. Yoon, and S.-M. Han, “Planar directional beam antenna design for beam switching system applications,” J. Electromagn. Eng. Sci., vol.17, no. 1, pp. 14–­19, Jan. 2017.

D. Lee, H. Do, Y. Jang, H. Kim, S.-M. Han, J. Lim, K. Choi, and D. Ahn, “A new design method of the unequal Wilkinson power divider using an arbitrarily resistor value,” Microw. Opt. Technol. Lett., vol. 58, no. 10, pp. 2450–2452, Oct. 2016.

S.-M. Han, Y. Lee, T. Choi, S.-J. Lee, J.-W. Baik, J. Lim, and D. Ahn, “Compact wake-up module design based on an energy-harvesting rectenna for wireless sensor receivers,” Int. J. Antennas Propag., vol. 2015, Article ID 976875, March 2015.

H. Lee, S.-J. Lee, W.-S. Yoon, and S.-M. Han, “Power controlled FM-UWB system with a wideband RF carrier for body area network applications,” Int. J. Microw. Wireless Technol., vol. 6, no. 5, pp. 537–541, Oct. 2014.

S.-M. Han, S.-J. Lee, K. Kim, J. Lim, and D. Ahn, “Design considerations for complicated antenna systems on a simple de-embedding method,” IEEE Antennas Wireless Propag. Lett., vol. 13, pp. 1031–1034, June 2014.

W.-S. Yoon, S.-J. Lee, and S.-M. Han, “Channel cognitive wireless sensor system based on spectrum sensing technology,” IEEE Trans. Antennas Propag., vol. 62, no. 3, pp. 1157–1164, March 2014.

J. Lim, D. Ahn, S.-M. Han, Y. Jeong, and H. Liu, “A defected ground structure without ground contact problem and application to branch line couplers," Int. J. Antennas Propag., vol. 2013, Article ID 232317, July 2013.

S.-J. Lee, J. Lim, D. Ahn, and S.-M. Han, “Flexible microwave tag system based on DGS multiple resonators,” Int’l J. Antennas Propag., vol. 2013, Article ID 415607, June 2013.

J. Lim, Y. Jeon, S.-M. Han, Y. Jeong, and D. Ahn, “A design of dual band amplifiers using CRLH transmission line structure,” IEICE Trans. Electron., vol. E95-C, no. 5, pp. 964–967, May 2012.

K.-J. Lee, H. Lee, Y.-S. Kim, J. Lim, and S.-M. Han, “Multi-functional channel selective RF receiver system for low-power sensor network applications,” Microw. Opt. Technol. Lett., vol. 54, no. 4, pp. 847–851, April 2012. (Erratum is published in Microw. Opt. Technol. Lett., vol. 54, no. 7, pp. 1775, July 2012)

J.-W. Baik, S.-M. Han, T.-H. Lee, Y.-J. Chong, J. Choi, and Y.-S. Kim, “Dual-mode dual-bandpass filter with transmission zeros using coupling mode conversion,” IET Microw., Antennas, Propag., vol. 6, no. 3, pp. 251–262, Feb. 2012.

J.-W. Baik, T.-H. Lee, S. Pyo, S.-M. Han, J. Jeong, and Y.-S. Kim, “Broadband circularly polarized crossed dipole with parasitic loop resonators and its arrays,” IEEE Trans. Antennas Propag., vol.59, no.1, pp. 80–88, Jan. 2011.

W.-S. Yoon, J.-W. Baik, H.-S. Lee, S. Pyo, S.-M. Han, and Y.-S. Kim, “A reconfigurable circularly polarized microstrip antenna with a slotted ground plane,” IEEE Antennas Wireless Propag. Lett., vol. 9, no. 1, pp. 1161–1164, Dec. 2010.

S. Pyo, S.-M. Han, J.-W. Baik, W.-S. Yoon, and Y.-S. Kim, “Offset-fed metamaterial antenna for radiation mode generation with efficiency improvement,” IET Microw., Antennas, Propag., vol. 4, no. 10, pp. 1481–1490, Oct. 2010.

J. Choi, S. Pyo, S.-M. Han, and Y.-S. Kim, “Compact circularly polarized microstrip antennas using EM coupled loop resonators,” IEICE Trans. Commun., vol. E93-B, no.10, pp. 2658–2661, Oct. 2010.

J. Lim, J. Lee, J. Lee, S.-M. Han, D. Ahn, and Y. Jeong, “A new calculation method for the characteristic impedance of transmission lines with modified ground structures or perturbation,” Progress In Electromagnetics Research (PIER), Vol. 106, pp. 147–162, 2010.

W.-S. Yoon, S.-M. Han, S. Pyo, J. Lee, I.-C. Shin, and Y.-S. Kim, “Reconfigurable circularly polarized microstrip antenna on a slotted ground,” ETRI J., vol. 32, no. 3, pp. 468–471, June 2010.

S. Pyo, S.-M. Han, J.-W. Baik, and Y.-S. Kim, “A slot-loaded composite right/left-handed transmission line for a zeroth-order resonant antenna with efficiency improvements,” IEEE Trans. Microw. Theory Techn., vol. 57, no. 11, pp. 2775–2782, Nov. 2009.

W.-S. Yoon, S.-M. Han, J.-W. Baik, S. Pyo, J. Lee, and Y.-S. Kim, "Crossed dipole antenna with switchable circular polarisation sense," Electron. Lett., vol. 45, no. 14, pp. 717–718, July 2009.

S.-M. Han, O. Popov, and A. Dmitriev, “Flexible chaotic UWB communication system with adjustable channel bandwidth in CMOS technology,” IEEE Trans. Microw. Theory Techn., vol. 56, no. 10, pp. 2229–2236, Oct. 2008.

J.-W. Baik, S.-M. Han, C. Jeong, J. Jeong, and Y.-S. Kim, “Compact ultra-wideband bandpass filter with EBG structure,” IEEE Microw. Compon. Lett., vol. 18, no. 10, pp. 671–673, Oct. 2008.

Kim, C. W. Jung, S.-M. Han, and Y. Kim, “Wing-shaped antenna with two-port configuration for multi-band mobile communication systems,” Electron. Lett., vol. 43, no. 24, pp. 1332–1333, Nov. 2007.

S.-M. Han, M.-H. Son, and Y.-H. Kim, “Chaotic UWB communication system for low-rate wireless connectivity applications,” IEICE Trans. Commun., vol. E90-B, no.10, pp. 2891–2896, Oct. 2007.

S.-M. Han, J.-Y. Park, and T. Itoh, “A self-biased receiver system using the active integrated antenna,” IEICE Trans. Commun., vol. E89-B, no.2, pp. 570–575, Feb. 2006.

S.-M. Han, C.-S. Kim, D. Ahn, and T. Itoh, “Phase shifter with high phase shifts using defected ground structures,” Electron. Lett., vol. 41, no. 4, pp. 45–46, Feb. 2005.

J.-Y. Park, S.-M. Han, and T. Itoh, “A rectenna design with harmonic-rejecting circular-sector antenna,” IEEE Antennas Wireless Propag. Lett., vol. 3, pp. 52–54, Dec. 2004.

S.-M. Han, Y. Chung, and T. Itoh, “Novel RF front end designs based on active integrated antenna concepts,” Microw. Review, vol. 10, no. 2, pp. 8–15, Nov. 2004.

K. H. Kwon, S.-M. Han, S. Nahm, M. H. Kim, and Y.-S. Kim, “Compact hairpin-shaped duplexer using a BMT substrate with high dielectric constant,” Microw. Opt. Technol. Lett., vol. 41, no. 4, pp. 251–253, May 2004.

S.-M. Han and Y.-S. Kim, “Strong coupled microstrip tapered feedlines for the applications to filters and antennas,” Microw. Opt. Technol. Lett., vol. 39, no. 6, pp. 505–508, Dec. 2003.

S.-M. Han and Y.-S. Kim, “Coupled line phase shifters and its equivalent phase delay line for compact broadband phased array antenna applications,” J. Electromagn. Eng. Sci. (JEES), vol. 3, no. 1, pp. 62–66, May 2003.

S.-M. Han, K. H. Kwon, and Y.-S. Kim, “New compact broadband phase shifters using coupled lines,” Microw. Opt. Technol. Lett., vol. 36, no. 5, pp. 399–400, March 2003.