Wideband Printed Antipodal Vivaldi Antenna using Straight Slots for UHF DVB-T/T2 Applications

Authors

  • Na-Rae Kwon Department of Electronic Engineering, Gyeongsang National University (GNU), 501, Jinju-daero, Jinju, Gyeongnam, 52828, Republic of Korea
  • Seong-Hyeop Ahn Department of Electronic Engineering, Gyeongsang National University (GNU), 501, Jinju-daero, Jinju, Gyeongnam, 52828, Republic of Korea
  • Wang-Sang Lee Department of Electronic Engineering, Gyeongsang National University (GNU), 501, Jinju-daero, Jinju, Gyeongnam, 52828, Republic of Korea

DOI:

https://doi.org/10.13052/2022.ACES.J.370608

Keywords:

antipodal Vivaldi antenna, DVB-T/T2, straight slots, UHF applications, wideband

Abstract

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. The proposed antenna consists of two radiation flares with straight slots and a feeding line. A wideband impedance matching was achieved by inserting the slots between the flares and the feeding line. 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). The measured −10 dB impedance bandwidth and maximum gain were approximately 72.1% (0.47–1.00 GHz) and 2.57 dBi, respectively. 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.

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Author Biographies

Na-Rae Kwon, Department of Electronic Engineering, Gyeongsang National University (GNU), 501, Jinju-daero, Jinju, Gyeongnam, 52828, Republic of Korea

Na-Rae Kwon received the B.S. degree in electronic engineering from Gyeongsang National University (GNU), Jinju, South Korea, in 2017, where she is currently pursuing the M.S. degree.

Her current research interests include wireless power transfer and communication systems, RF/Microwave circuit and system, and RFID/IoT sensors.

Seong-Hyeop Ahn, Department of Electronic Engineering, Gyeongsang National University (GNU), 501, Jinju-daero, Jinju, Gyeongnam, 52828, Republic of Korea

Seong-Hyeop Ahn received the B.S. and M.S. degrees in electronic engineering from Gyeongsang National University, Jinju, South Korea, in 2018 and 2020, respectively, and is currently working toward the Ph.D. degree.

His research interests are near- and far-field wireless power transfer and data communication system, high-power microwave system with slotted waveguides, and RF/microwave circuit and antenna designs.

Wang-Sang Lee, Department of Electronic Engineering, Gyeongsang National University (GNU), 501, Jinju-daero, Jinju, Gyeongnam, 52828, Republic of Korea

Wang-Sang Lee received the B.S. degree from Soongsil University, Seoul, South Korea, in 2004, and the M.S. and Ph.D. degrees in electrical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 2006 and 2013, respectively. 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. 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. Since 2014, he has been an Associate Professor with the Department of Electronic Engineering, Gyeongsang National University (GNU), Jinju, South Korea. From 2018 to 2019, he was a Visiting Scholar with the ATHENA Group, Georgia Institute of Technology, Atlanta, GA, USA. 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.

Dr. Lee is a member of IEC/ISO JTC1/SC31, KIEES, IEIE, and KSR. 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. 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.

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Published

2022-06-30

How to Cite

[1]
N.-R. . Kwon, S.-H. . Ahn, and W.-S. . Lee, “Wideband Printed Antipodal Vivaldi Antenna using Straight Slots for UHF DVB-T/T2 Applications”, ACES Journal, vol. 37, no. 06, pp. 726–732, Jun. 2022.

Issue

2022: Vol 37 Iss 6

Section

General Submission

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