Carbon nanotube thin film patch antennas for wireless communications

被引：38

作者：

Bengio, E. Amram ^{[1
]}

Senic, Damir ^{[2
]}

Taylor, Lauren W. ^{[1
]}

Headrick, Robert J. ^{[1
]}

King, Michael ^{[1
]}

Chen, Peiyu ^{[3
]}

Little, Charles A. ^{[2
]}

Ladbury, John ^{[2
]}

Long, Christian J. ^{[2
]}

Holloway, Christopher L. ^{[2
]}

Babakhani, Aydin ^{[3
]}

Booth, James C. ^{[2
]}

Orloff, Nathan D. ^{[2
]}

Pasquali, Matteo ^{[1
]}

机构：

[1] Rice Univ, Dept Chem & Biomol Engn, Houston, TX 77005 USA

[2] NIST, Commun Technol Lab, Boulder, CO 80305 USA

[3] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA

来源：

APPLIED PHYSICS LETTERS | 2019年 / 114卷 / 20期

关键词：

REVERBERATION-CHAMBER; PERFORMANCE; UNCERTAINTY; DESIGN;

D O I：

10.1063/1.5093327

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Early work on carbon nanotube (CNT) antennas indicated that their performance could not match that of metals such as copper. However, recent improvements in fluid phase CNT processing have yielded macroscopic CNT materials with better alignment and conductivity. There is currently a gap in the literature on CNT antennas for direct experimental measurements of radiation efficiency. In this study, we conducted radiation efficiency measurements of microstrip patch antennas made of shear-aligned CNT films. We measured a radiation efficiency of 94% at 10 GHz and 14GHz, matching equivalent copper antennas. Furthermore, the minimum CNT film thickness required to match the performance of copper drops with increasing frequency due to reduced losses from the skin effect. These findings pave the way for applications of aligned CNT patch antennas in the aerospace industry, where low weight, mechanical durability, and temperature-independent performance are critically important.

引用

页数：5

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