Tunable Electromagnetic Gradient Surface for beam steering by using varactor diodes

Jungmi Hong, Youngsub Kim, Young Joong Yoon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper, tunable beam steering has been realized by arranging Electromagnetic Band-gap (EBG) that has constant phase difference, Δφ. The proposed structure is the active periodic Electromagnetic Gradient Surface (EGS) that consist of the 4 by 4 matrix form of unit cells to easily control the several varactor diodes. The phase gradient ±120° of the proposed EGS is selected. Moreover this structure uses only one diode per four unit cells. The conventional loading of a single varactor for each of the unit cells of the EBG is overcome by connectdkgkding the unit cells to a feeding network directly without via. Thus, the EGS can steer reflected beam to-9° at Δφ = 120° and to +9° at Δφ =-120° by actively changing the biasing voltage of varactor diode.

Original languageEnglish
Title of host publicationISAP 2013 - Proceedings of the 2013 International Symposium on Antennas and Propagation
Pages1211-1214
Number of pages4
Publication statusPublished - 2013 Dec 1
Event2013 International Symposium on Antennas and Propagation, ISAP 2013 - Nanjing, China
Duration: 2013 Oct 232013 Oct 25

Publication series

NameISAP 2013 - Proceedings of the 2013 International Symposium on Antennas and Propagation
Volume2

Other

Other2013 International Symposium on Antennas and Propagation, ISAP 2013
CountryChina
CityNanjing
Period13/10/2313/10/25

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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  • Cite this

    Hong, J., Kim, Y., & Yoon, Y. J. (2013). Tunable Electromagnetic Gradient Surface for beam steering by using varactor diodes. In ISAP 2013 - Proceedings of the 2013 International Symposium on Antennas and Propagation (pp. 1211-1214). [6717722] (ISAP 2013 - Proceedings of the 2013 International Symposium on Antennas and Propagation; Vol. 2).