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Dissertation_Final_JingniZhong.pdf (15.17 MB)

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Broadband Antennas and Arrays on Conductive Textile Threads

Zhong, Jingni, Zhong
http://orcid.org/0000-0002-0525-606X
http://rave.ohiolink.edu/etdc/view?acc_num=osu1502797950559018

Abstract Details

2017, Doctor of Philosophy, Ohio State University, Electrical and Computer Engineering.
The advent of broadband systems requires antennas to operate over a wide range of frequencies. For practical application, these antennas must also be conformal, flexible and robust, in addition to delivering wide operational bandwidth. In this dissertation, we present two classes of ultra-wideband (UWB) apertures: one is a cavity backed slot spiral and the other is a tightly coupled dipole array (TCDA). Both can be realized using flexible textile configuration. The textile fabrication is demonstrated via an automated embroidery of conductive threads. Two different broadband textile antennas are fabricated and measured. First, a cavity backed Archimedean slot spiral operating from 300MHz to 3GHz (10:1) and delivering an average gain of 6.5dBi. And second, a simplified 3-elements TCDA operating from 30MHz to 2GHz (67:1). The performance of both antennas is comparable to their copper counterparts. The robustness of the presented textile antennas is verified by mechanical flexing and thermal storage tests. We also propose a method to extract the surface conductivity of the textile surface for its accurate simulation using commercial software. Building on the TCDA array design process, we propose a new array for Ku band (2-18GHz) operation. This array has a VSWR<4 and scans down to 60 degrees in all directions. Simulations for a textile realization of this 2-18GHz TCDA are also presented. Overall, the proposed broadband antennas and arrays using conductive textiles provide for a good solution to modern mobile communication systems for various wearable applications.
John Volakis (Advisor)
Asimina Kiourti (Committee Member)
Ayman Fayed (Committee Member)
132 p.
Electrical Engineering; Electromagnetics
broadband antennas; broadband arrays; conductive textiles; embroidery; wearable applications; flexible; mechanical robusness;

Recommended Citations

Citations

  • Zhong, Zhong, J. (2017). Broadband Antennas and Arrays on Conductive Textile Threads [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1502797950559018

    APA Style (7th edition)

  • Zhong, Zhong, Jingni. Broadband Antennas and Arrays on Conductive Textile Threads. 2017. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1502797950559018.

    MLA Style (8th edition)

  • Zhong, Zhong, Jingni. "Broadband Antennas and Arrays on Conductive Textile Threads." Doctoral dissertation, Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1502797950559018

    Chicago Manual of Style (17th edition)

osu1502797950559018
246
© 2017, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.