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Journal of Electrical Engineering & Technology

, Volume 14, Issue 6, pp 2427–2436 | Cite as

Internal Reconfigurable Dipole–Loop Antenna Array for High Reception Rate of Wideband UHD-TV Applications

  • Thai Van Trinh
  • Byungje Lee
  • Taejoon Park
  • Chang Won JungEmail author
Original Article
  • 39 Downloads

Abstract

An internal reconfigurable Dipole–Loop antenna array, covering the entire ultra-high frequency (UHF) band for ultra-high definition television (UHD-TV) applications is presented. The internal antenna array is used to overcome the influence of electromagnetic interference when integrating the antenna element inside the TV model and to increase the gain and reception rate of receiving signals for television broadcasting. The antenna array is designed based on the Dipole–Loop antenna elements, placing on substrate material PC-ABS (polycarbonate-acrylonitrile butadiene styrene: εr = 3.5, tan δ = 0.005) of the bezel frame in the TV model. By simultaneously switching PIN diodes with two ON/OFF states, the antenna array can be frequency reconfigured to achieve a wide operating bandwidth for UHF (470–771 MHz) band. The spacing between the antenna elements in the array at each mode is chosen as 0.5λ0 (λ0 represents the free space wavelength of the highest frequency in the operating band). The proposed antenna array is designed, fabricated, and tested for experimental verification. Measurement results show that the antenna array is good for high reception rate of UHD-TV applications, with a − 6 dB impedance bandwidth of 51.6% (460‒780 MHz), covering the whole UHF band. The 3 dB gain bandwidths of 42.5% and 54.6% are obtained with peak realized gains of 9.6 dBi and 8.5 dBi for the horizontal and vertical polarizations, respectively. In addition, the diversity performance parameters are obtained and evaluated using the mean effective gains of the elements, and the diversity gain using both simulation and measurement results. It shows that the proposed antenna array can receive multi-side signals, applied in diversity and MIMO systems.

Keywords

Internal antenna array Reconfigurable antenna Reception rate UHF band UHD-TV 

Notes

Acknowledgements

This work was supported by the Research Fund of Hanyang University under Grant HY-2015-G.

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Copyright information

© The Korean Institute of Electrical Engineers 2019

Authors and Affiliations

  1. 1.Graduate School of NID Fusion TechnologySeoul National University of Science and TechnologySeoulRepublic of Korea
  2. 2.Department of Electronics and Information EngineeringKwangwoon UniversitySeoulRepublic of Korea
  3. 3.Department of Robotics EngineeringHanyang UniversityAnsan-siRepublic of Korea

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