Low insertion loss of 200 μm-long graphite coplanar waveguide

被引：5

作者：

Wang, Zidong ^{[1
]}

Shu, Xiongjun ^{[2
]}

Peng, Pei ^{[1
]}

Jia, Yuehui ^{[3
]}

Ren, Liming ^{[1
]}

Gong, Xin ^{[1
]}

Zhang, Xing ^{[1
]}

Huang, Ru ^{[1
]}

Wen, Jincai ^{[2
]}

Fu, Yunyi ^{[1
]}

机构：

[1] Peking Univ, Inst Microelect, Key Lab Microelect Devices & Circuits MOE, Beijing 100871, Peoples R China

[2] Hangzhou Dianzi Univ, Key Lab RF Circuits & Syst MOE, Hangzhou 310018, Zhejiang, Peoples R China

[3] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2016年 / 108卷 / 03期

基金：

中国国家自然科学基金;

关键词：

GRAPHENE; TRANSISTORS;

D O I：

10.1063/1.4940022

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The graphene coplanar waveguide (CPW) has recently been found to have large insertion loss (typically larger than 50 dB/100 mu m), which mainly results from the large resistance of graphene. The poor radio-frequency transmission property of graphene hampers its application in interconnect, a low loss material is thus required. In this paper, low-resistance graphite CPWs with effective graphite length up to 200 mu m were fabricated. A record low insertion loss of graphite CPW (2.76 dB/100 mu m) is demonstrated, and the average insertion loss of our graphite CPWs is only similar to 1/5 of that of our monolayer graphene CPWs. Moreover, we find the insertion loss of graphite CPW may be even smaller at higher frequencies. Our investigation shows that graphite is a possible candidate for interconnect and may even be more applicable at ultra-high frequencies. (C) 2016 AIP Publishing LLC.

引用

页数：5

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