Vivaldi tapered slot9/20/2023 ![]() Weller, “A novel method for improving antipodal Vivaldi antenna performance,” IEEE Trans. ![]() Podilchak, “Compact UWB antipodal vivaldi array for beam steering applications,” 2021 15th European Conf. Gazit and Ehud, “Improved design of the vivaldi antenna,” IEE Proceedings H-Microw., Antennas Propag., vol. Arthaber, “High gain dielectric loaded Vivaldi antenna for Ka-band application,” IEEE Antennas Wirel. Bhattacharya, “Vivaldi antennas: a historical review and current state of art,” Int. Dissertation Award at the Department of Electrical Engineering, KAIST, in 2014, the Young Researcher Award at KIEES in 2017, and the Best Paper Awards at IEIE in 2018 and KICS in 2019.īhattacharjee, A. He was a recipient of the Best Paper Award at IEEE RFID in 2013, the Kim Choong-Ki Award– Electrical Engineering Top Research Achievement Award at the Department of Electrical Engineering, KAIST, in 2013, the Best Ph.D. Lee is a member of IEC/ISO JTC1/SC31, KIEES, IEIE, and KSR. His current research interests include near- and far-field wireless power and data communications systems, RF/microwave antenna, circuit, and system design, RFID/Internet of Things (IoT) sensors, and EMI/EMC.ĭr. From 2018 to 2019, he was a Visiting Scholar with the ATHENA Group, Georgia Institute of Technology, Atlanta, GA, USA. Since 2014, he has been an Associate Professor with the Department of Electronic Engineering, Gyeongsang National University (GNU), Jinju, South Korea. ![]() In 2013, he joined the Korea Railroad Research Institute (KRRI), Uiwang-si, South Korea, as a Senior Researcher, where he was involved in the position detection for high-speed railroad systems and microwave heating for low-vibration rapid tunnel excavation system. From 2006 to 2010, he was with the Electromagnetic Compatibility Technology Center, Digital Industry Division, Korea Testing Laboratory (KTL), Ansan-si, South Korea, where he was involved in the international standardization for radio frequency identification (RFID) and photovoltaic systems as well as electromagnetic interference (EMI)/EMC analysis, modeling, and measurements for information technology devices. degrees in electrical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 20, respectively. degree from Soongsil University, Seoul, South Korea, in 2004, and the M.S. Due to the addition of the slots, the impedance bandwidth of the proposed antenna was improved by approximately 212% compared with the Vivaldi antenna without slots. ![]() The measured −10 dB impedance bandwidth and maximum gain were approximately 72.1% (0.47–1.00 GHz) and 2.57 dBi, respectively. For the experimental verification of the proposed antenna, it was fabricated on a flat circular printed circuit board (PCB) substrate with a radius of 0.25 λ0, where λ0 is the wavelength at 0.74 GHz (the center frequency of the operating band). A wideband impedance matching was achieved by inserting the slots between the flares and the feeding line. The proposed antenna consists of two radiation flares with straight slots and a feeding line. This paper presents a wideband printed antipodal Vivaldi antenna using straight slots for UHF DVB-T/T2 applications covering a frequency range of 470–862 MHz. Department of Electronic Engineering, Gyeongsang National University (GNU), 501, Jinju-daero, Jinju, Gyeongnam, 52828, Republic of KoreaĪntipodal Vivaldi antenna, DVB-T/T2, straight slots, UHF applications, wideband Abstract
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