International Conference Papers

107. Yong-Hyun Nam, Sun-Gyu Lee, Minseok Kim and Jeong-Hae Lee, "Design Method of High-Efficiency Reconfigurable Metasurface Antenna Using Least Square Method," IEEE AP-S/URSI, July, 2024. 

106. Yong-Hyun Nam, Sun-Gyu Lee and Jeong-Hae Lee, "A High-Efficiency Reconfigurable Reflectarray Antenna Using Two Types of Active Unit Cells," European Conference on Antennas and Propagation, March, 2024. 

105. Yong-Hyun Nam and Jeong-Hae Lee, "Comparative Study of Hybrid Reflectarray Antennas with Various Passive Unit Cells," International Symposium on Antennas and Propagation, November, 2023. 

104. Sun-Gyu Lee and Jeong-Hae Lee, "Reconfigurable Reflectarray Antenna for Dual and Circular Polarization," IEEE AP-S USNC-URSI, July, 2023. 

103. Sun-Gyu Lee and Jeong-Hae Lee, "A Dual-Polarized Reconfigurable Reflectarray Antenna Based on Alternated Single-Polarized Unit Cells," European Conference on Antennas and Propagation, March, 2023. 

102. Sun-Gyu Lee, Yong-Hyun Nam, Yongjune Kim, Jongyeong Kim and Jeong-Hae Lee, "High-Efficiency Reconfigurable Reflectarray Based on Small Unit Cell of Ring Patch," International Symposium on Antennas and Propagation, October, 2022. 

101. Yong-Hyun Nam, Yongjune Kim, Sun-Gyu Lee and Jeong-Hae Lee, "Improvement of Aperture Efficiency of Reflectarray Antenna Using Passive and Active Unit Cell," International Symposium on Antennas and Propagation, October, 2022. 

100. Yongjune Kim and Jeong-Hae Lee, "Atypical Metasurface Absorber Combined with Chip Resistors and Vias for Broadband and Wide Angle Absorption," IEEE AP-S USNC-URSI, July, 2022. 

99. Yongjune Kim and Jeong-Hae Lee, "Ultrawideband Absorption Based on Double-Layer Carbon Metapatterns Including Millimeter Wave Band," GSMM 2022-The 14th Global Symposium on Millimeter-Waves & Terahertz, May, 2022. 

98. Bo-Hee Choi and Jeong-Hae Lee, "Equivalent Circuit and Coil Design for Spatial Freedom of Wireless Charging," Wireless Power Transfer Conference, November, 2020. 

97. Yong-Hyun Nam and Jeong-Hae Lee, "Two-Layer Planar Loop Array for Near Field Beam Forming with Improved Efficiency," Wireless Power Transfer Conference, November, 2020. 

96. Sun-Gyu Lee and Jeong-Hae Lee, "Low-profile TM Incident Retrodirective Metasurface Using AMC Surface," European Conference on Antennas and Propagation, April, 2020. 

95. Yong-Hyun Nam and Jeong-Hae Lee, "Efficient Two-layer Loop Array for Selective Magnetic Resonance Wireless Power Transfer," European Conference on Antennas and Propagation, April, 2020. 

94. Chang-Hyun Lee, The Viet Hoang, Sang Wook Chi, Sun-Gyu Lee and Jeong-Hae Lee,"Circularly Polarized Multi-beam Transmitarray Antenna using Metasurface," European Conference on Antennas and Propagation, April, 2019. 

93. Sun-Gyu Lee and Jeong-Hae Lee,"Analysis of Two-Layer Metasurface using Generalized Sheet Transition Conditions and Babinet's Principle," European Conference on Antennas and Propagation, April, 2019. 

92. The Viet Hoang Lee and Jeong-Hae Lee, "Dual-polarzied Retrodirective Metasurface using Generalized Snell's law," A3 Metamaterials Forum, August, 2018. 

91. The Viet Hoang and Jeong-Hae Lee,"Two-Dimensional Retrodirective Metasurface using Generalized Snell's law," International Symposium on Antennas and Propagation, October, 2018. 

90. Chang-Hyun Lee, Sang Wook Chi, Jae-Gon Lee, and Jeong-Hae Lee,"Multi-beam Transmitarray Antenna Design Using Principle of Superposition," International Symposium on Antennas and Propagation, October, 2018. 

89. Sun-Gyu Lee and Jeong-Hae Lee,"Circuit Modeling of Metascreen using Generalized Sheet Transition Conditions and Babinet’s Principle," International Symposium on Antennas and Propagation, October, 2018. 

88. Jae-Gon Lee and Jeong-Hae Lee,"Compact GPS Antenna Array Using Meta Structure," European Conference on Antennas and Propagation, April, 2018. 

87. Chang-Hyun Lee and Jeong-Hae Lee,"Circularly Polarized Mu-zero Resonance Antenna Array Having Wide Scanning Angle," European Conference on Antennas and Propagation, April, 2018. 

86. Sun-Gyu Lee and Jeong-Hae Lee,"Active Element Pattern and Array Pattern of Patch Array Antenna Including Ground Edge Effects," International Symposium Antennas and Propagation, October, 2017. 

85. Jae-Gon Lee and Jeong-Hae Lee,"Low profile Fabry Perot Cavity (FPC) Antenna Using Meta-surface for Dual-band," International Symposium Antennas and Propagation, October, 2017. 

84. Chang-Hyun Lee and Jeong-Hae Lee, "Meta-Structured Circular Polarized Antenna Array having Wide Beam Scanning Angle," A3 Metamaterials Forum, June, 2017. (Invited paper) 

83. Sang Wook Chi and Jeong-Hae Lee, "Analytic RF Multi Beam Synthesis Method considering Active Element Pattern of Array Antenna," APEMC, June, 2017. 

82. Chang-Hyun Lee and Jeong-Hae Lee, "Dual-band Circular Polarization Antenna with Mu-zero Resonance and First-order Negative Mode," International Symposium on Antennas and Propagation, October, 2016. 

81. Chang-Hyun Lee, Kwi Seob Um, Jong Chang Yi, Young Kwan Kim, and Jeong-Hae Lee, "Energy Harvesting Antennas based on Meta-structured Transmission Line," Metamaterials 2016, September, 2016. 

80. Jae-Gon Lee and Jeong-Hae Lee, "Design of PIFA on the Capacitive Grating AMC Structure for SAR Reduction in the Penta-band," URSI AP RASC, August, 2016. 

79. Chang-Hyun Lee and Jeong-Hae Lee, "Wideband Energy Harvesting Antenna with 2 by 2 Mu-zero Array for Wireless Power Transfer," URSI AP RASC, August, 2016. 

78. Kwi Seob Um, Chang-Hyun Lee, and Jeong-Hae Lee, "High Efficiency Triple Band Small Antenna for RF Energy Harvesting using Mu-negative Transmission Line," URSI AP RASC, August, 2016. 

77. Jeong-Hae Lee and Chang-Hyun Lee, "Circularly Polarized Antennas Based on Meta-structured Transmission Lines for Microwave Applications," The First A3 Metamaterials Forum, July, 2016. (Invited paper) 

76. Chang-Hyun Lee and Jeong-Hae Lee, "2 by 2 Mu-zero Array mounted on Tapered Monopole for Wireless Power Transmission and EM Energy Harvesting," IEEE AP USNC-URSI, June, 2016. 

75. Kwi Seob Um, Chang-Hyun Lee, and Jeong-Hae Lee, "High Efficiency Triple Band Small Antenna for RF Energy Harvesting using Mu-negative Transmission Line," IEEE AP USNC-URSI, June, 2016. 

74. Jae-Gon Lee and Jeong-Hae Lee, "Improvement of isolation and ECC using orthogonal current distribution for mobile handsets," International Symposium on Antennas and Propagation, June 2016. 

73. Bo-Hee Choi and Jeong-Hae Lee, "Near-field Beamforming Planar Loop Array for Misaligned Wireless Power Transfer," European Conference on Antennas and Propagation, April, 2016. 

72. Jae-Gon Lee and Jeong-Hae Lee, "Enhanced bandwidth of dual ZOR antenna for multiband applications," European Conference on Antennas and Propagation, April 2016. 

71. Bo-Hee Choi and Jeong-Hae Lee, "4x4 Loop array for magnetic field control of wireless power transfer," AWAP, January, 2016. Award 

70. Bo-Hee Choi and Jeong-Hae Lee, "Beamforming Planar Loop Array for Wireless Power Transfer," IEEE AP-S/URSI, July, 2015. 

69. Chang-Hyun Lee and Jeong-Hae Lee, "Vertical ZOR Antenna Array with Omnidirectionally Steerable Patterns," IEEE AP-S/URSI, July, 2015. 

68. Bo-Hee Choi, Byung-Chul Park, and Jeong-Hae Lee, "Two- and Three- Dimensional Near field Beam Steering Loop Arrays," European Conference on Antennas and Propagation, April, 2015 

67. Byung-Chul Park and Jeong-Hae Lee, "Circularly Polarized Antennas Based on Metamaterial Transmission Lines," iWAT, March, 2015. (Invited paper) 

66. Chang-Hyun Lee, and Jeong-Hae Lee, "A Study on Aperture Coupled Mushroom ZOR Antenna in Millimeter Wave Band," GSMM 2014, May, 2014. 

65. Byung-Chul Park and Jeong-Hae Lee, "Circularly Polarized Antenna Based on Mu-negative Transmission Line,"European Conference on Antennas and Propagation 2014, April, 2014. 

64. Ju-Hui Kim, Byung-Chul Park, and Jeong-Hae Lee, "Accurate Analysis Method of Wireless Power Transfer System with Multiple Relays," APMC 2013, November, 2013. 

63. Seung-Tae Ko, Byung-Chul Park, and Jeong-Hae Lee, "Dual-band Circularly Polarized Hybrid Metamaterial Patch Antenna," APMC 2013, November, 2013. 

62. Jeong-Hae Lee, Seung-Tae Ko, and Byung-Chul Park, "Hybrid Metamaterial Antennas," EuMC, October, 2013 (Invited paper) 

61. Seung-Tae Ko and Jeong-Hae Lee, "Aperture Coupled Metamaterial Patch Antenna with Broad E-plane Beamwidth for Milimeter Wave Application," IEEE AP-S/URSI, July, 2013. 

60. Byung-Chul Park, Ju-Hui Kim, and Jeong-Hae Lee, "Resonators Insensitive to Alignment for Wireless Power Transmission," IEEE AP-S/URSI, July, 2013. 

59. Jeong-Hae Lee and Seung-Tae Ko, "Compact metamaterial-based antennas for microwave applications," 3rd Korea-Japan Metamaterials Forum, June, 2013. (Invited paper) 

58. Jeong-Hae Lee, and Seung-Tae Ko, "Wideband Zeroth-Order Resonance Antenna Combined with TM010 Mode Having Folded Mushroom Structure," European Conference on Antennas and Propagation, April, 2013. 

57. Byung-Chul Park and Jeong-Hae Lee "Dual-Band Omnidirectional Circularly Polarized Antenna Utilizing Epsilon Negative Transmission Line," APMC 2012, Dec., 2012. 

56. Seung-Tae Ko and Jeong-Hae Lee "Broad E-plane Beamwidth Zeroth-Order Resonance Patch Antenna," IEEE AP-S, July, 2012. 

55. Byung-Chul Park, Jae-Hyun Park, and Jeong-Hae Lee "Adaptive Impedance Matching of Wireless Power Transfer Using a Multi-loop Feeding," IEEE AP-S, July, 2012. 

54. Dong-Jin Kim and Jeong-Hae Lee "CRLH Rectangular Waveguide with Balanced Condition and Its Application to Beam-Steering Leaky-Wave Slot Antenna," Korea-Japan Microwave Conference, November, 2011. 

53. Jeong-Hae Lee and Dong-Jin Kim "Wideband Left-handed Transmission Lines with Crossly Connected Circuit," Internaional Symposium on Antennas and Propagation, October, 2011. 

52. Jae-Hyun Park, Byung-Chul Park, Young-Ho Ryu, Jeong-Hae Lee, "Analysis of Radiation Efficiency of Asymmetrical Wireless Power Transmission System," International Symposium on Antennas and Propagation, October, 2011. 

51. Jae-Hyun Park, Byung-Chul Park, Young-Ho Ryu, Eun-Seok Park, Sang-Wook Kwon, and Jeong-Hae Lee "Optimum Frequency of High Q-factor Resonator for Magnetic Resonance Coupling," European Microwave Conference, pp. 61-63, October, 2011. 

50. Dong-Jin Kim and Jeong-Hae Lee "Broadband Left-handed Waveguide with Double L-Shaped Short Stubs and E-plane Posts," IEEE AP-S, July, 2011. 

49. Seung-Tae Ko and Jeong-Hae Lee, "Broadband Metamaterial Antenna Using Folded Parasitic Patch," IEEE AP-S, July, 2011. 

48. Seung-Tae Ko and Jeong-Hae Lee, "Miniaturized ENG ZOR antenna with high permeability material," IEEE AP-S, July, 2010. 

47. Jae-Hyun Park, Byung-Chul Park and Jeong-Hae Lee, "A Study on Wireless Power Transmission using Flat Rectangular Coil," IEEE AP-S, July, 2010. 

46. Dong-Jin Kim and Jeong-Hae Lee, "Analysis of Transmission Loss of Pure Left-handed Transmission Line," GSMM 2010, April, 2010. 

45. Byung-Chul Park, Jeong-Hae Lee, and Heung-Sik Tae, "Omnidirectional Circularly Polarized Antenna using Zeroth-order Resonance of Metamaterial Transmission Line," European Conference on Antennas and Propagation, April, 2010. 

44. Dong-Jin Kim and Jeong-Hae Lee, "Resonant Array Antenna using Inclined Sidewall Slot in Partial H-Plane Waveguide," IRMMW-THz, September, 2009. 

43. Seung-Wook Lee, Jae-Hyun Park and Jeong-Hae Lee, "Investigation of Radiation Efficiency and Bandwidth of Electrically Small MNG ZOR Metamaterial Antenna," PIERS, August, 2009. 

42. Dong-Jin Kim and Jeong-Hae Lee, "Slot Array Antenna using Partial H-plane Waveguide," IEEE AP-S, June, 2009. 

41. Byung-Chul Park and Jeong-Hae Lee, "Omnidirectional Circularly Polarized Antenna based on Meta Material Transmission Line," IEEE AP-S, June, 2009. 

40. Young-Ho Ryu, Jae-Hyun Park, Jeong-Hae Lee and Heung-Sik Tae, “Planar meta-structured transmission lines," Korea-Japan AP/EMC/EMT Joint Conference, Incheon, Korea, 2009. 

39. Young-Ho Ryu, Jae-Hyun Park, Jeong-Hae Lee, and Heung-Sik Tae, “Generalized Metamaterial Transmission Line Using Defected Ground Structure,” Korea-Japan MicroWave Conference, Jeju, Korea, 2009. 

38. Joo-Young Lee , Dong-Jin Kim , Byung-Chul Park and Jeong-Hae Lee, "High Order Bandpass Filter using The First Negative Resonant Mode of Composite Right/Left-handed Transmission Line," IEEE AP-S, July, 2008. 

37. Jae-Hyun Park, Young-Ho Ryu, Seung-Wook Lee, Jeong-Hae Lee, Eun-Seok Park and Young-Eil Kim, "Dual band Antennas using Metamaterial Transmission Lines," IEEE AP-S, July, 2008. 

36. Young-Ho Ryu, Jae-Hyun Park, Seung-Tae Ko, Jeong-Hae Lee and Heung-Sik Tae, "Multi-Band Antenna Using Dual Composite Right/Left Handed Transmission Line," IEEE AP-SJuly, 2008.

35. Dong-Jin Kim and Jae-Gon Lee, "Partial H-Plane Filter with Attenuation Pole," IEEE AP-S, pp. 4260-4263, June, 2007. 

34. Jae-Hyun Park, Young-Ho Ryu, Jae-Gon Lee, and Jeong-Hae Lee, "A Zeroth-Order Resonator Antenna Using Epsilon Negative Meta-Structured Transmission Line," IEEE AP-S, pp. 3480-3483, June, 2007. 

33. Young-Ho Ryu, Jae-Hyun Park, Jeong-Hae Lee and Heung-Sik Tae, "A Novel Planar Left-Handed Transmission Line Using Defected Ground Structure with Inter-Digital Gap," IEEE AP-S, June, pp. 4991-4994, June, 2007. 

32. Jae-Gon Lee and Jeong-Hae Lee, "Low profile omnidirectional magnetic loop antenna using double negative transmission line," Korea-Japan Joint Conference, pp. 337-340, September. 2006. 

31. Dong-Jin Kim, Jae-Gon Lee, Ki-Don Kim, and Jeong-Hae Lee, "Quarter wavelength resonator partial H-plane filter," European Microwave Conference, pp. 991-994, September, 2006. 

30. Jae-Hyun Park, Young-Ho Ryu, Jae-Gon Lee, and Jeong-Hae Lee, "A Novel Planar Left-Handed Transmission Line Using Grounded Rectangular Patch with Meander Line," IEEE AP-S, Vol. 5, pp. 4141-4144, July, 2006. 

29. Jae-Gon Lee and Jeong-Hae Lee, "Low profile omnidirectional zeroth order resonator antenna," IEEE AP-S, Vol. 3, pp. 2029-2032, July. 2006. 

28. Dong-Jin Kim, Jae-Gon Lee, and Jeong-Hae Lee, "Compact partial H-plane filter with periodically grooved metal vane," Korea-Japan Microwave Workshop, pp. 58-61, October, 2005. 

27. Jae-Gon Lee and J.H. Lee, "Backcward-wave directional coupler with tight coupling and broad bandwodth using one-dimensional mushroom structure," International Symposium on Antennas and Propagation, August, 2005. 

26. Jae-Gon Lee and J.H. Lee, "Suppression of spurious radiations of patch antenna using split ring resonators(SRRs)," IEEE AP-S, Vol. 2B, pp.242-245, July, 2005. 

25. JongRyul Sohn, Heung-Sik Tae, Jae-Gon Lee, and Jeong-Hae Lee, "Comparative analysis of four types of high-impedance surfaces for low profile antenna applications," IEEE AP-S, July, 2005 

24. Dong-Won Kim and Jeong-Hae Lee, "A partial H-plane waveguide: mode characteristics and its application," IEEE Conference on Electromagnetic Field Computation, 2004. 

23. Jeong-Hae Lee and Dong-Won Kim, "Compact partial H-plane filters," Korea-Japan Joint Conference on AP/EMC/EMT, 2004. 

22. Hun-Yong Lim, Min-Suk Kim, Jeong-Hae Lee, "Shielding Effectiveness of Mesh Screen Filter of Plasma Display Panel," The 4th International Meeting on Information Display, August. 2004. 

21. Min-Suk Kim Hun-Yong Lim, Jeong-Hae Lee, "A Study of Distortion of Waveform in AC PDP ," The 4th International Meeting on Information Display, August. 2004. 

20. Kiyoung Kim, Jeong-Hae Lee, JongRyul Sohn, and Heung-Sik Tae, "Dispersion Characteristics of Dispersive Double Negative (DNG) Metamaterial Columns," IEEE AP-S, June. 2004. 

19. Dong-Won Kim, Jae-Gon Lee, and Jeong-Hae Lee, "Design of Partial H-Plane Filter: A New Type of H-Plane Filter," IEEE AP-S, June. 2004. 

18. Dong-Won Kim and Jeong-Hae Lee, "Mode Characteristic of a Partial H-Plane Waveguide," CEFC, June. 2004.

17. J. Y. Lee, Jeong-Hae Lee, H. S. Kim, N. W. Kang, and H. K. Jung, "Effective Medium Approach of Left Handed Material Using a Dispersive FDTD Method," CEFC, June. 2004. 

16. Hun-Yong Lim, Min-Suk Kim, and Jeong-Hae Lee, "Investigation on Radiation Characteristics of 42in. PDP," The 10th International Display Workshops, Dec. 2003. 

15. Ki-Don Kim, Jae-Gon Lee, and Jeong-Hae Lee, "NRD guide Stepped-impedance Duplexer in Millimeter wave band," APMC, Nov. 2003. 

14. Jae-Gon Lee, Jeong-Hae Lee, "Symmetrical Scanning Leaky Wave Antenna Using Left-handed Transmission Line," APMC, Nov. 2003. 

13. Jae-Gon Lee, Jeong-Hae Lee, "Guided Mode Characteristics of NRD Guide with Left-handed Materials," ASAEM, Oct. 2003 

12. Hung-Yong Lim, Min-Suk Kim, and Jeong-Hae Lee, "A Study of Electromagnetic Emission of 42in. AC PDP Module," The 3rd International Meeting on Information Display, July. 2003. 

11. Jae-Gon Lee, Jeong-Hae Lee, and Heung-Sik Tae, "Nonradiative Dielectric (NRD) Rotman Lens with Gap-coupled Unidirectional Dielectric Radiator (UDR)," IEEE AP-S, Jun. 2003. 

10. Kiyoung Kim, Heung-Sik Tae and Jeong-Hae Lee, "Analysis of Leaky Modes in Circular Dielectric Rod Waveguides," Electronics Letters, Vol.39, No. 1, pp. 61-62, Jan, 2003. 

9. Jae-Gon Lee, So-Young Kim, Jeong-Hae Lee, and Heung-Sik Tae, "Broadband Gap-Coupled Unidirectional Dielectric Radiator (UDR) in the Millimeter Wave Band," IEEE AP-S conference, Jun. 2002. 

8. Yong-Hyun Park, Jeong-Hae Lee,"Measurement of Group Velocities of Various Microwave Transmission Lines via FM Reflectometry," International Microwave Symposium, May 2001.

7. Jae-Gon Lee, Jeong-Hae Lee,"Design of a Nonradiative Dielectric Rotman Lens in the Millimeter Wave Frequency," International Microwave Symposium, May 2001. 

6. Yong-Hee Lee, Jeong-Hae Lee, Jae-Gon Lee, "Analysis of Dispersion Characteristics of Periodically Loaded Conducting Posts in a Rectangular Waceguide," IEEE Conference on Electromagnetic Field Computation, pp. 276, Jun. 2000. 

5. Nam-Young Ryu, Jeong-Hae Lee,"Compensation of Equivalent Circuit Model of TE011 Mode Cylindrical Cavity Filter," IEEE Conference on Electromagnetic Field Computation, pp. 272, Jun. 2000. 

4. Yong-Hyun Park, Jeong-Hae Lee, "Measurement of Dispersion Characteristics of Periodically Loaded Conducting Posts in a Rectangular Waveguide," International Conference on Microwave & Millimeterwave, Sep. 2000. 

3. Yong-Hee Lee, Jeong-Hae Lee, "Mode Combination for Efficient Calculation of Scattering Matrix in Mode-Matching Techniques," IEEE Conference on Electromagnetic Field Computation, pp. 280, Jun. 2000. 

2. Jeong-Hae Lee, "Millimeter Wave Reflectometer Applied to RF Wave Diagnostic in Plasmas," Korea-Japan AP/EMC/EMT Joint Conference Proc., pp. 9-12, 1998. 

1. Jeong-Hae Lee, "A Study of the Internal Electric Field Structure of Launched Fast Magnetosonic Waves,"Invited Speaker a t the 38th American Physical Society Annual Meeting, Denver, CO. USA, Nov.1996.