Search Results - "Sungtek Kahng"

A Metamaterial Surface Avoiding Loss from the Radome for a Millimeter-Wave Signal-Sensing Array Antenna by Moon, Inyeol, Kim, Woogon, Seo, Yejune, Kahng, Sungtek

“…Radar systems are a type of sensor that detects radio signals reflected from objects located a long distance from transmitters. For covering a longer range and…”
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Channel Selectivity of Satellite Transponders with the Antenna Combined with a Size-Reduced Metallic Waveguide Bandpass Filter Having Thin Metamaterial Resonators by Cho, Junghyun, Seo, Yejune, Shin, Wonjae, Lee, Eungdon, Kahng, Sungtek

“…Global and intercontinental networking relies on satellite communication. Its wireless communication system always has antennas and their feed assembly…”
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Antenna Integration for Millimeter-Wave RF Sensing and Millimeter-Wave Communication Mountable on a Platform by Koh, Jaewon, Park, Hongsik, Kim, Woogon, Seo, Seongbu, Seo, Yejune, Kahng, Sungtek

“…An array antenna for millimeter-wave communication and an array antenna for millimeter-wave sensing are designed and put together into one structure. Because…”
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Directivity Improved Antenna with a Planar Dielectric Lens for Reducing the Physical Size of the On-Vehicle Communication System by Seo, Seongbu, Kim, Woogon, Park, Hongsik, Seo, Yejune, Park, Dohyun, Kim, Hyoungjong, Lee, Kwonhee, Lee, Hosub, Kahng, Sungtek

“…As the physical size of a communication system for satellites or unmanned aerial vehicles demands to be reduced, a compact antenna with high directivity is…”
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A Fully-Printed CRLH Dual-Band Dipole Antenna Fed by a Compact CRLH Dual-Band Balun by Khattak, Muhammad Kamran, Lee, Changhyeong, Park, Heejun, Kahng, Sungtek

“…In this paper, a new design method is proposed for a planar and compact dual-band dipole antenna. The dipole antenna has arms as a hybrid CRLH (Composite…”
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RF Channel-Selectivity Sensing by a Small Antenna of Metamaterial Channel Filters for 5G Sub-6-GHz Bands by Khattak, Muhammad Kamran, Lee, Changhyeong, Park, Heejun, Kahng, Sungtek

“…In this paper, a new small antenna is suggested for 5G Sub-6-GHz band mobile communication. It can change the channel among the three given bands (called the…”
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A Planar Millimeter-Wave Resonator-Array to Sense the Permittivity of COP Film with the 5G Handset Back-Cover by Seo, Yejune, Lee, Changhyeong, Moon, Inyeol, Ota, Koichro, Omote, Ryomei, Kahng, Sungtek

“…In this paper, a new sensor is developed to estimate the dielectric constant of Cyclo Olefin Polymer (COP) film utilizable for 5G mobile phones’ multi-layered…”
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Effective Size Reduction of the Metallic Waveguide Bandpass Filter with Metamaterial Resonators and Its 3D-Printed Version by Cho, Junghyun, Seo, Yejune, Cho, Jihaeng, Park, Kyoung Youl, Park, Joongki, Lee, Hosub, Kahng, Sungtek

“…In this paper, a novel method is proposed to effectively reduce the size of a waveguide bandpass filter (BPF). Because the metallic cavities make the…”
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A Chip Antenna for Bluetooth Earphones with Cross-Head Interference Tested from Received-Signal Sensing by Seo, Yejune, Cho, Junghyun, Lee, Yejin, Jang, Jiyeon, Kwon, Hyung-Wook, Kahng, Sungtek

“…In this paper, a novel chip antenna and its function in wireless connectivity are presented for Bluetooth (BLT) earphones. The chip antenna is a metamaterial…”
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Investigation on Beam Alignment of a Microstrip-Line Butler Matrix and an SIW Butler Matrix for 5G Beamforming Antennas through RF-to-RF Wireless Sensing and 64-QAM Tests by Jeon, Munsu, Seo, Yejune, Cho, Junghyun, Lee, Changhyeong, Jang, Jiyeon, Lee, Yejin, Kwon, Hyung-Wook, Kahng, Sungtek

“…In this paper, an intuitive approach to assessing advantages of beamforming in 5G wireless communication is proposed as a novel try and practical demonstration…”
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An On-Film AMC Antenna Insert-Molded in Earbuds with Enhancement in In-Ear and In Situ Received-Signal Sensing by Seo, Yejune, Moon, Inyeol, Cho, Junghyun, Lee, Yejin, Jang, Jiyeon, Shohei, Morimoto, Toshifumi, Kurosaki, Kahng, Sungtek

“…In this paper, a novel thin and flexible antenna is proposed for earbuds to gain an improvement in their wireless signal-sensing capability as a film-based…”
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The Rectangular Power-Bus With Slits GA-Optimized to Damp Resonances by KAHNG, Sungtek

“…The genetic algorithm (GA) is utilized to optimize the sizes and positions of slits on the printed circuit board power-bus to reduce specified impedance peaks…”
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RSSI Improved for LoRa Wireless Communication, Field-Tested in the Wide-Open Area by Shin, Won-Jae, Lee, Yejin, Cho, Junghyun, Jang, Jiyeon, Seo, Yejune, Kahng, Sungtek

“…This paper presents an effective method to boost the RSSI, the received signal strength on a moving path of LoRa wireless networking without change in digital…”
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Broadband Tunable Third-Order IMD Cancellation Using Left-Handed Transmission-Line-Based Phase Shifter by Park, Hongwoo, Yoo, Hyoungsuk, Kahng, Sungtek, Kim, Hongjoon

“…We demonstrate a broadband tunable third-order intermodulation distortion (IMD) cancellation architecture using a left-handed transmission line (LHTL)-based…”
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Tunable Control of Mie Resonances Based on Hybrid VO2 and Dielectric Metamaterial by Gao, Ju, Zhang, Kuang, Yang, Guohui, Kahng, Sungtek, Wu, Qun

“…In this paper, a tunable dielectric metamaterial absorber with temperature-based vanadium dioxide (VO2) is proposed. In contrast to previous studies, both the…”
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Design of an Internal Multiresonant Monopole Antenna for GSM900/DCS1800/US-PCS/S-DMB Operation by HONG, Seokjin, KIM, Wonseob, PARK, Hoon, KAHNG, Sungtek, CHOI, Jaehoon

“…A design is proposed of a multiresonant monopole antenna for a personal wireless communication handset. Multiresonant operation is achieved through the use of…”
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A stacked array antenna able to make a very large gain and tilt the end‐fire beam at the ISM‐band by Lee, Changhyeong, Park, Heejun, Lim, Yongseok, Kahng, Sungtek

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GA-Optimized Compact Broadband CRLH Band-Pass Filter Using Stub-Inserted Interdigital Coupled Lines by Jeon, Jinsu, Kahng, Sungtek, Kim, Hyunsoo

“…The design of a new compact band-pass filter is proposed, which is based on the microstrip composite right- and left-handed transmission- line (CRLH-TL)…”
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A Novel Compact Metamaterial Zeroth Order Resonant Bandpass Filter for a VHF Band and Its Stopband Improvement by Transmission Zeros by Sungtek Kahng, Geonho Jang

“…A novel compact and low-loss VHF bandpass filter is presented with enhanced stopband performance using metamaterial zeroth order resonator (ZOR)…”
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Compact Dual-Band Three-Way Metamaterial Power-Divider with a Hybrid CRLH Phase-Shift Line by Kyeongnam Jang, Sungtek Kahng, Jinsu Jeon, Qun Wu

“…A compact dual-band three-way metamaterial power divider is proposed that has three in-phase outputs. Fully printed composite right- and left-handed (CRLH)…”
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