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2020

ㆍJ. Park, H. Seong, Y. Whang, and W. Hong, (2019) Energy Efficient 5G Phased-Arrays incorporating Vertically-Polarized Endfire Planar Folded Slot Antenna for mmWave Mobile Terminals , Antennas and Propagation, IEEE Transactions on 68(1), 230-241 


Y. Youn, S. Cho, H. Song, and W. Hong, (2019) Polarization and Frequency-selective Surface for Vehicular Beamforming Communications requiring near-zero profile, Vehicular Technology, IEEE Transactions on 69(2), 1719-1726 


ㆍA.A. Omar, Y. Youn, and W.Hong, (2020) A Low-Profile Wideband Shared-Aperture Dual-Polarized Antenna Utilizing Dual-Function Slot, Antennas and Propagation, IEEE Transactions on (Accepted)


A.A. Omar, J. Kim, and W.Hong, (2020) A 3-D Lumped-Components-Free Absorptive Frequency-Selective Transmission Structure Featuring Very Wide Two-Sided Absorption Bandwidths, Antennas and Wireless Propagation Letters, IEEE Transactions on (Accepted)

2019

J. Choi, J. Park, Y. Youn, W. Hwang, H. Seong, Y.N. Whang, and W. Hong, (2019) Frequency Adjustable Planar Folded Slot Antenna Using Fully-Integrated Multi-Throw Function for 5G Mobile Devices at Millimeter-Wave Spectrum, Microwave Theory and Techniques, IEEE Transactions on (Accepted)


J. Choi, S. Lim, and W. Hong, (2019) Efficient NFC Coil Antennas for Fully Enclosed Metallic-Framed Wearable Devices, IET Microwaves, Antennas & Propagation (Accepted)


L. Gao, S. Zheng, W. Hong, Y. Li, and Y. Long, (2019) Tight Coupling Dual-band Coupler with Large Frequency Ratio and Arbitrary Power Division Ratios over Two Bands, IEEE Access (Accepted)


W. Kwon, J. Park, and W. Hong, (2019) Comment on “Broadband Symmetrical E-Shaped Patch Antenna with Multimode Resonance for 5G Millimeter-Wave Applications” Antennas and Propagation, IEEE Transactions on (Accepted) 


W. HongR. MaaskantD. LiuH. WangA. ShamimB. SmoldersD. Manteuffel, and Y. Zhang, Guest Editorial Antenna-in-Package, Antenna-on-Chip, Antenna-IC Interface: Joint Design and Cointegration, Antennas and Wireless Propagation Letters, IEEE, 18(11), 2245-2350


J. Park, D. Choi, and W. Hong, (2019) Millimeter-wave Phased-Array Antenna-in-Package (AiP) using Stamped Metal Process for Enhanced Heat Dissipation, Antennas and Wireless Propagation Letters, IEEE 18(11), 2355-2359


S. Jung, and W. Hong, (2019) Characterizing Volume Density of Sub-Wavelength Particles at 220-325 GHz Using Deep Neural Network and Non-featured Scattering Matrix, Antennas and Wireless Propagation Letters, IEEE 18(11), 2240-2243


J.-Y. Lee, J. Choi, J-H. Jang, and W. Hong, “Performance Enhancement in Compact Inverted-L Antenna by Using 1-D EBG Ground Structures and Beam Directors,” IEEE Access, vol. 7, No. 1, pp. 93264-93274, 2019.


Chong-Zhi Han, Shu-Min Liao , Kai-Dong Hong Guan-Long Huang , Tao Yuan, Wonbin Hong and Chow-Yen-Desmond Sim, "A Frequency-Reconfigurable Antenna with 1-mm Nonground Portion for Metal-Frame and Full-Display Screen Handset Applications Using Mode Control Method ", Accepted for publication in IEEE Access, 2019

  

J. Park, S. Lee, J. Kim, D. Park, W. Choi, and W. Hong, (2019) An Optically Invisible Antenna-on-Display (AoD) Concept for Millimeter-wave 5G Cellular Devices, Antennas and Propagation, IEEE Transactions on, 67(5), 2942-2952


Y. Youn, and W. Hong, (2019) Circularly-polarized Wave Beamforming using One-dimensional Fresnel Zone Plate, Microwave and Optical Technology Letters , 2019;1–5.


J. Choi, W. Hwang, C. You, B. Jung, and W. Hong, (2019) Four-element Reconfigurable Coupled Loop MIMO Antenna Featuring LTE Full Band Operation for Metallic-rimmed Smartphone, Antennas and Propagation, IEEE Transactions on, 67(1), 99-107 


2018

C.Z. Han, G.L. Huang, T. Yuan, W. Hong, and C.Y.D. Sim, (2018) A Frequency-Reconfigurable Tuner-Loaded Coupled-Fed Frame-Antenna for All-Metal-Shell Handsets, IEEE Access, 6, 64041 - 64049


J. Choi, W. Hwang, C. You, B. Jung, and W. Hong, (2018) High Efficiency Crossed-Loop 4G LTE Antenna for All-Display Metallic-rimmed Smartphones, International Journal of Antennas and Propagation. vol. 2018, Article ID 8070953


S. Lee, M. Choo, S. Jung, and W. Hong, (2018) Optically Transparent Nano-patterned Antennas: A Review and the Future, Applied Sciences, vol. 8, no. 6 

2017

D. Liu, W. Hong, T. S. Rappaport, C. Luxey,  and W. Hong, (2017). "What will 5G antennas and propagation be?", Antennas and Propagation, IEEE Transactions on, 65(12), 6205-6212.  


O. Jo, J. J. Kim, J. Yoon, D. Choi and W. Hong, "Exploitation of Dual-Polarization Diversity for 5G Millimeter-Wave MIMO Beamforming Systems," in IEEE Transactions on Antennas and Propagation, vol. 65, no. 12, pp. 6646-6655, Dec. 2017.

W. Hong, "Solving the 5G Mobile Antenna Puzzle: Assessing Future Directions for the 5G Mobile Antenna Paradigm Shift," in IEEE Microwave Magazine, vol. 18, no. 7, pp. 86-102, Nov.-Dec. 2017.

W. Hong, K. H. Baek and S. Ko, "Millimeter-Wave 5G Antennas for Smartphones: Overview and Experimental Demonstration," (Invited Paper) in IEEE Transactions on Antennas and Propagation, vol. 65, no. 12, pp. 6250-6261, Dec. 2017.​


ㆍH.J. Song, S.J. Hwang, H.S. An, H.-J. Song and JI. Song, "Continuous-wave THz vector imaging system utilizing two-tone signal generation and self-mixing detection" in Optics Express, vol. 25, no. 17, pp. 20718-20726, 2017.

ㆍT. Tajima, H.-J. Song, H. Matsuzaki and M. Yaita, "LTCC-Integrated H-Plane Bends for THz Antenna-in-Package Solution," in IEEE Microwave and Wireless Components Letters, vol. 27, no. 5, pp. 440-442, 2017. 

ㆍH.-J. Song,"Packages for Terahertz Electronics," in Proceedings of the IEEE , vol.PP, no.99, pp.1-18, 2017 

W. Hong, S. Lim, S. Ko and Y. G. Kim, "Optically Invisible Antenna Integrated Within an OLED Touch Display Panel for IoT Applications," in IEEE Transactions on Antennas and Propagation, vol. 65, no. 7, pp. 3750-3755, July 2017. 


ㆍD. Choi, W. Hong, and W. Park, "Equivalent Circuit Characterization of a Parallel-Wire T-junction Discontinuity with Radiation Loss." Microwave and Optical Technology Letters, vol. 59, Issue 6, 1434-1438, 2017. 

2014

T. Tajima, H.-J. Song, M. Yaita, K. Ajito, and N. Kukutsu, “300-GHz Step-profiled Corrugated Horn Antennas Integrated in LTCC”, IEEE Trans. On Anten. And Propag., Vol. 62, No. 11, pp. 5437-3444, Nov. 2014

Hong, W., Baek, K. H., Lee, Y., Kim, Y., & Ko, S. T. (2014). Study and prototyping of practically large-scale mmWave antenna systems for 5G cellular devices. Communications Magazine, IEEE, 52 (9), 63-69.

K. Ajito, J.-Y. Kim, Y. Ueno, H.-J. Song, “Terahertz spectroscopic identification of pharmaceutical crystals: Cocrystals and polymorphic forms”, NTT Technical Review, Vol. 12, No. 4, 2014

Jo, O., Hong, W., Choi, S., Chang, S., Kweon, C., Oh, J., & Cheun, K. (2014). Holistic design considerations for environmentally adaptive 60 GHz beamforming technology. Communications Magazine, IEEE, 52(11), 30-38.

H.-J. Song, and M. Yaita, “On-Wafer Noise Figure Measurement at 300 GHz Using UTC-PD As Noise Source”, IEEE Microwave and Wireless Components Letters, Vol. 24, No. 8, pp. 578-580, August, 2014

Kim, Y. G., & Hong, W. (2014). Radiation Efficiency-Improvement Using a Via-Less, Planar ZOR Antenna for Wireless ECG Sensors on a Lossy Medium. Antennas and Wireless Propagation Letters, IEEE, 13, 1211-1214.

K. Ajito, Y. Ueno, J.-Y. Kim and H.-J. Song,  K. Ueda, W. Limwkikrant, K. Yamamoto, and K. Moribe, “Nondestructive multicomponent terahertz chemical imaging of medicine in tabulets”, Journal of the Electrochemical Society, Vol. 161, No. 9, pp. B171-B175, June 2014

Chung, J. Y., Hong, W., & Lee, K. H. B. Y. J. (2014). PCB-Embedded Antenna for 80 GHz Chip-to-Chip Communication. Journal of electromagnetic engineering and science, 14 (1), 43-45.

J.-Y Kim, H. Nishi, H.-J. Song,  H. Fukuda, M. Yaita, A. Hirata, and K. Ajito, "Compact and stable THz vector spectroscopy using silicon photonics technology," Opt. Express Vol. 22, No. 6, pp. 7178-7185, 2014

J.-Y. Kim, H.-J. Song,  M. Yaita, A. Hirata, and K. Ajito, "CW-THz vector spectroscopy and imaging system based on 1.55-µm fiber-optics," Opt. Express, Vol 22, No. 2, pp. 1735-1741, 2014

H.-J. Song, J.-Y. Kim, K. Ajito, N. Kukutsu, and M. Yaita, “50-Gbps Direct Conversion QPSK Modulator and Demodulator MMICs for Terahertz Communications at 300 GHz”, IEEE Trans. Microw. Theory Tech., Vol. 62, No. 3, pp. 600-609, March 2014


T. Tajima, H.-J. Song , M. Yaita, “Wideband probe-type microstrip-to-waveguide transition integrated in LTCC”, Electronics letters, Vol. 50, No. 3, pp. 194-195, Jan. 2014

2012

T. Isogawa, T. Kumashiro, H.-J. Song  K. Ajito, N. Kukutsu, K. Iwatsuki, T. Nagatsuma, "Tomographic Imaging Using Photonically Generated Low-Coherence Terahertz Noise Sources," IEEE Trans. Terahertz Science and Technology, vol.2, no.5, pp.485-492, Sept. 2012

Hong, W., Baek, K. H., & Goudelev, A. (2012). Multilayer antenna package for IEEE 802.11 ad employing ultralow-cost FR4. Antennas and Propagation, IEEE Transactions on, 60(12), 5932-5938.

K. Ajito, Y. Ueno, H.-J. Song  J.-Y. Kim., E. Tamechika, N. Kukutsu, W. Limwikrant, K. Yamamoto, K. Moribe, “Terahertz chemical imaging of a multicomponent tablet in pharmaceutical applications”, ECS Trans., 50 (12) 109-116, 2012

Khripkov, A., Hong, W., & Pavlov, K. (2012). Integrated resonant structure for simultaneous wireless power transfer and data telemetry. Antennas and Wireless Propagation Letters, IEEE, 11, 1659-1662.Measurement accuracy enhancement using an optical probe system for electrically small MIMO antennas

K. Ajito, Y. Ueno, H.-J. Song, “Visualization of pharmaceutical drug molecules by terahertz chemical imaging”, NTT Technical Review, Vol. 10, No. 2, 2012

H.-J. Song. K. Ajito, Y. Muramoto, A. Wakazuki, T. Nagatsuma, and N. Kukutsu, “24-Gbps data transmission in 300- GHz band for future terahertz communications”, Electronics Letters, Vol 48, No. 15, pp. 953-954, July 2012


H.-J. Song. K. Ajito, A. Wakazuki, Y. Muramoto, T. Nagatsuma, and N. Kukutsu, “Uni-Travelling-Carrier Photodiode Module Generating 300 GHz Power Greater Than 1 mW”, IEEE Microwave and Wireless Components Letters, Vol. 22, No, 7, pp. 363 – 365, July 2012 (IEEE MTT-S Tatsuo Itoh Prize)

2011

ㆍK. Ajito, Y. Ueno, H.-J. Song  E. Tamechika, and N. Kukutsu, ” Terahertz Chemical Imaging of Molecular Networks for Pharmaceutical Applications”, ECS Trans., 35 (7) 157-165, 2011  

ㆍHong, W., Goudelev, A., Baek, K. H., Arkhipenkov, V., & Lee, J. (2011). 24-element antenna-in-package for stationary 60-GHz communication scenarios.Antennas and Wireless Propagation Letters, IEEE, 10, 738-741.

ㆍH.-J. Song, and T. Nagatsuma, “Present and Future of Terahertz Communications”, IEEE Trans. Terahertz Sci. and Technol., Vol. 1, pp. 256-263, Sept. 2011 (Invited)


ㆍK. Ajito, Y. Ueno, H.-J. Song  E. Tamechika, and N. Kukutsu, “Terahertz Spectroscopic Imaging of Polymorphic Forms in Pharmaceutical Crystals”, Molecular Crystals and Liquid Crystals, Vol. 538, pp. 33-38, 2011 

2009

ㆍH.-J. Song, K. Ajito, A. Hirata, A. Wakatsuki, Y. Muramoto, T. Furuta, N. Kukutsu, T. Nagatsuma and Y. Kado, “8 Gbps wireless data transmission at 250 GHz band”, Electron. Lett., Vol. 45, No. 22, pp1121-1122, Oct. 2009

ㆍHong, W., & Sarabandi, K. (2009). Low-profile, multi-element, miniaturized monopole antenna. Antennas and Propagation, IEEE Transactions on, 57(1), 72-80.

ㆍH.-J. Kim, H.-J. Song  and J.-I. Song, “BER and SFDR Characteristics of an FWM-based All-Optical Frequency Upconverter”, IEEE Photon. Technol. Lett., Vol. 21, No. 18, pp. 1329-1331, Sept. 2009


ㆍN. Shimizu, H.-J. Song, Y. Kado, T. Furuta, A. Wakatsuki, Y. Muramoto, “Gas detection using terahertz waves”, NTT Technical Review, Vol. 7. No. 3, 2009

2008

ㆍH.-J. Song, N. Shimizu, T. Furuta, A. Wakatsuki, and T. Nagatsuma, “Sub-terahertz noise generation with a photodetector and wavelength sliced optical noise signals and its application to spectroscopy measurement”, Appl. Phys. Lett., Vol. 93, p. 241113, Dec. 2008


Hong, W., & Sarabandi, K. (2008). Low profile miniaturized planar antenna with omnidirectional vertically polarized radiation. Antennas and Propagation, IEEE Transactions on, 56(6), 1533-1540.


H.-J. Song, N. Shimizu, N. Kukutsu, T. Nagatsuma, and Y. Kado, “Microwave Photonic Noise Source from Microwave to Sub-Terahertz Wave Bands and Its Applications to Noise Characterizations”, IEEE Trans. Microw. Theory Tech., Vol. 56, pp. 2989-2997, Dec. 2008


Caekenberghe, K. V., Brakora, K. M., Hong, W., Jumani, K., Liao, D., Rangwala, M.,& Sarabandi, K. (2008).  A 2–40 GHz probe station based setup for on-wafer antenna measurements. Antennas and Propagation, IEEE Transactions on, 56(10), 3241-3247.


H.-J. Song, N. Shimizu, T. Furuta, K. Suizu, H. Ito, and T. Nagatsuma, " Broadband Frequency-Tunable Sub-Terahertz Wave Generation Using an Optical Comb Signal, AWGs, Optical Switches, and Uni-Travelling Carrier Photodiode for Spectroscopic Applications," J. Lightwave Technol., Vol. 26, no. 15, pp. 2521-2530, Aug. 2008


T. W. Kim, D. H. Kim, S. D. Park, S. H. Shin, S. J. Jo, H.-J. Song, Y. M. Park, J. O. Bae, Y. W. Kim, G. Y. Yeom, J. H. Jang, and J. I. Song, "A two-step-recess process based on atomic-layer etching for high-performance In0.52Al0.48As/In0.53Ga0.47As p-HEMTs," IEEE Transactions on Electron Devices, vol. 55, pp. 1577-1584, Jul 2008.

2007

ㆍH.-J. Song, N. Shimizu, and T. Nagatsuma, "Generation of two-mode optical signals with broadband frequency tunability and low spurious signal level," Opt. Express 15, pp. 14901-14906, 2007

ㆍH.-J Kim, J.-I. Song, and H.-J. Song  "An all-optical frequency up-converter utilizing four-wave mixing in a semiconductor optical amplifier for sub-carrier multiplexed radio-over-fiber applications," Opt. Express 15, 3384-3389, 2007.

ㆍH.-J. Song, T.-W. Kim, S.-J. Jo, C.-H. Im, K.-H. Oh, S.-K. In, J.-I. Song, "Microwave Photonic Mixer Utilizing an InGaAs Photoconductor for Radio over Fiber Applications," IEICE, E90-C, pp. 457-464, 2007.


ㆍJ.-I. Song, and H.-J. Song  "Simultaneous Frequency Conversion Technique utilizing an SOA-MZI for Full-Duplex WDM Radio over Fiber Applications," IEICE, E90-C, pp. 351-358, 2007. (Invited)

2005
ㆍK.-H. Oh, H.-J. Song, S. Moon, T.-Y. Kim, G. Mudhana, W. B. Kim, D.-Y. Kim and J.-I. Song, “Investigation of microstriplike mode suppression in UC-PBG FW-CBCPW by using an electro-optic near field characterization”, Microw. Opt. Technol. Lett., Vol. 47, No. 2, pp. 119-122, October, 2005 ㆍH.-J. Song, J. S. Lee and J.-I. Song, “Error-free simultaneous all-optical upconversion of WDM radio over fiber signals”, IEEE Photon. Technol. Lett., vol. 17, pp. 1731-1373, August, 2005
2003
ㆍI.-H. Kang, J.-H. Kim, H.-J. Song, and J.-I. Song, “Effect of selective hydrogen pretreatment on the characteristics of AlGaAs/InGaAs p-HEMTs”, J. of the Korean Physical Society, vol. 42, pp. 281-284, February, 2003. ㆍJ.-W. Lee, I.-H. Kang, S.-J. Kang, S.-J. Jo, S.-K. In, H.-J. Song, and J.-I. Song, "In0.5Ga0.5P/In0.22Ga0.78As Pseudomorphic High Electron Mobility Transistors with an Oxidized GaAs Gate for Improved Breakdown Voltage Characteristics," Solid State Electronics, 47, pp. 223-228, 2003. ㆍI.-H. Kang, J.-W. Lee, S.-J. Kang, S.-J. Jo, S.-K. In, H.-J. Song, J.-H. Kim, and J.-I. Song, "Improved Breakdown Voltage Characteristics of In0.5Ga0.5P/In0.22Ga0.78As/GaAs p-HEMT by the Use of An Oxidized GaAs Gate ," 10회 한국반도체학술대회, pp. 349-350, 2003.