Light weight and conformal 2-bit, 1 ×4 phased-array antenna with CNT-TFT-based phase shifter on a flexible substrate

Daniel T. Pham; Harish Subbaraman; Maggie Yihong Chen; Xiaochuan Xu; Ray T. Chen

doi:10.1109/TAP.2011.2165490

Light weight and conformal 2-bit, 1 ×4 phased-array antenna with CNT-TFT-based phase shifter on a flexible substrate

Daniel T. Pham^*
, Harish Subbaraman
, Maggie Yihong Chen
, Xiaochuan Xu
, Ray T. Chen

^*Corresponding author for this work

University of Texas at Austin
Omega Optics Inc.
Texas State University

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

This paper presents the development and characterization of an ink-jet printed 2-bit, 1 ×4 phased-array antenna (PAA) system on a flexible Kapton polyimide substrate utilizing carbon nanotube thin-film transistors (CNT-TFTs) as switching elements in the phase-shifting network. A multilayer metal interconnection strategy is used to fabricate a complete PAA system with control lines. By appropriately controlling the ON and OFF states of various switches, a 4.99 GHz signal is steered from 0° to -27°, and the measured far-field radiation patterns agree very well with the simulated data. Bending tests performed on the fabricated system at bending radii of 6.5 cm, 9.5 cm, 12 cm, and 24 cm also demonstrate good agreement with the simulations.

Original language	English
Article number	5991930
Pages (from-to)	4553-4558
Number of pages	6
Journal	IEEE Transactions on Antennas and Propagation
Volume	59
Issue number	12
DOIs	https://doi.org/10.1109/TAP.2011.2165490
State	Published - Dec 2011
Externally published	Yes

Keywords

Beam steering
carbon nanotube
flexible antenna
phase shifter
phased-array antenna
thin-film transistor

Access to Document

10.1109/TAP.2011.2165490

Cite this

@article{86647eabd33c4570a2d8fc095a7abbe0,

title = "Light weight and conformal 2-bit, 1 ×4 phased-array antenna with CNT-TFT-based phase shifter on a flexible substrate",

abstract = "This paper presents the development and characterization of an ink-jet printed 2-bit, 1 ×4 phased-array antenna (PAA) system on a flexible Kapton polyimide substrate utilizing carbon nanotube thin-film transistors (CNT-TFTs) as switching elements in the phase-shifting network. A multilayer metal interconnection strategy is used to fabricate a complete PAA system with control lines. By appropriately controlling the ON and OFF states of various switches, a 4.99 GHz signal is steered from 0° to -27°, and the measured far-field radiation patterns agree very well with the simulated data. Bending tests performed on the fabricated system at bending radii of 6.5 cm, 9.5 cm, 12 cm, and 24 cm also demonstrate good agreement with the simulations.",

keywords = "Beam steering, carbon nanotube, flexible antenna, phase shifter, phased-array antenna, thin-film transistor",

author = "Pham, \{Daniel T.\} and Harish Subbaraman and Chen, \{Maggie Yihong\} and Xiaochuan Xu and Chen, \{Ray T.\}",

year = "2011",

month = dec,

doi = "10.1109/TAP.2011.2165490",

language = "英语",

volume = "59",

pages = "4553--4558",

journal = "IEEE Transactions on Antennas and Propagation",

issn = "0018-926X",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "12",

}

TY - JOUR

T1 - Light weight and conformal 2-bit, 1 ×4 phased-array antenna with CNT-TFT-based phase shifter on a flexible substrate

AU - Pham, Daniel T.

AU - Subbaraman, Harish

AU - Chen, Maggie Yihong

AU - Xu, Xiaochuan

AU - Chen, Ray T.

PY - 2011/12

Y1 - 2011/12

N2 - This paper presents the development and characterization of an ink-jet printed 2-bit, 1 ×4 phased-array antenna (PAA) system on a flexible Kapton polyimide substrate utilizing carbon nanotube thin-film transistors (CNT-TFTs) as switching elements in the phase-shifting network. A multilayer metal interconnection strategy is used to fabricate a complete PAA system with control lines. By appropriately controlling the ON and OFF states of various switches, a 4.99 GHz signal is steered from 0° to -27°, and the measured far-field radiation patterns agree very well with the simulated data. Bending tests performed on the fabricated system at bending radii of 6.5 cm, 9.5 cm, 12 cm, and 24 cm also demonstrate good agreement with the simulations.

AB - This paper presents the development and characterization of an ink-jet printed 2-bit, 1 ×4 phased-array antenna (PAA) system on a flexible Kapton polyimide substrate utilizing carbon nanotube thin-film transistors (CNT-TFTs) as switching elements in the phase-shifting network. A multilayer metal interconnection strategy is used to fabricate a complete PAA system with control lines. By appropriately controlling the ON and OFF states of various switches, a 4.99 GHz signal is steered from 0° to -27°, and the measured far-field radiation patterns agree very well with the simulated data. Bending tests performed on the fabricated system at bending radii of 6.5 cm, 9.5 cm, 12 cm, and 24 cm also demonstrate good agreement with the simulations.

KW - Beam steering

KW - carbon nanotube

KW - flexible antenna

KW - phase shifter

KW - phased-array antenna

KW - thin-film transistor

UR - https://www.scopus.com/pages/publications/82455204859

U2 - 10.1109/TAP.2011.2165490

DO - 10.1109/TAP.2011.2165490

M3 - 文章

AN - SCOPUS:82455204859

SN - 0018-926X

VL - 59

SP - 4553

EP - 4558

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 12

M1 - 5991930

ER -

Light weight and conformal 2-bit, 1 ×4 phased-array antenna with CNT-TFT-based phase shifter on a flexible substrate

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this