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Ton Duc Thang University (TDTU) is a public university with the main campus located in vibrant Ho Chi Minh City, Vietnam’s economic and educational hub. Founded in 1997, TDTU has developed into one of the largest and fastest growing universities in Vietnam with more than 22,000 students, enrolled in undergraduate and graduate programs ranging from science, engineering to business management, law, and humanities. To foster the country’s human resources and best serve the nation in the knowledge based economy of the 21st century, TDTU is combining vocational training with high-level research. The establishment of JAEC is one of TDTU’s efforts in this direction. More

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  • Vol 6, No 1 (2022)
  • Patel

Numerical Investigation of Frequency Reconfigurable Antenna with Liquid Metamaterials for X-band

Shobhit K. Patel, Cong Danh Bui, Truong Khang Nguyen, Juveriya Parmar, Quang Minh Ngo

Abstract


In this paper, a frequency reconfigurable liquid metamaterial microstrip-based radiating structure is proposed and it is an attempt toward achieving reconfiguration in liquid metamaterial-based microstrip radiating structures. Reconfigurable antenna design is superstrated with five liquid metamaterial layers based on a distilled water split-ring resonator. Superstrate layers give enhancement from 6.5 dB to 13.1 dB in gain of the proposed antenna. A patch is reconfigured through PIN diodes as RF switches. Switching ‘on’ and ‘off’ states of PIN diodes are used for reconfiguration of frequency and radiation patterns. Analysis in terms of reflection coefficient, gain (dBi), radiation pattern, bandwidth (BW), and half-power beamwidth (HPBW) is obtained in switch-off and switch-on state. The proposed design provides enhanced gain, reflection coefficient, and multiband characteristics in the 8-12 GHz range suitable for X-band satellite and radar applications.  

Creative Commons License

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.



Keywords


Liquid Metamaterial, Reconfigurable Antenna, Radiating Structure, Multiband characteristics

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DOI: http://dx.doi.org/10.55579/jaec.202261.362

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Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.