Characterization of liquid crystal polymer (LCP) material and transmission lines on LCP substrates from 30 to 110 GHz

被引：406

作者：

Thompson, DC ^{[1
]}

Tantot, O

Jallageas, H

Ponchak, GE

Tentzeris, MM

Papapolymerou, J

机构：

[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA

[2] Univ Limoges, Fac Sci, Inst Rech Commun Opt & Microondes, F-87060 Limoges, France

[3] NASA, Glenn Res Ctr, Cleveland, OH 44135 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2004年 / 52卷 / 04期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

cavity resonator; dielectric characterization; liquid crystal polymer (LCP); loss tangent; millimeter-wave frequencies; ring resonator; transmission-line loss;

D O I：

10.1109/TMTT.2004.825738

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Liquid crystal polymer (LCP) is a material that has gained attention as a potential high-performance microwave substrate and packaging material. This investigation uses several methods to determine the electrical properties of LCP for millimeter-wave frequencies. Microstrip ring resonators and cavity resonators are measured in order to characterize the dielectric constant (epsilon(gamma)) and loss tangent (tan delta) of LCP above 30 GHz. The measured dielectric constant is shown to be steady near 3.16, and the loss tangent stays below 0.0049. In addition, various transmission lines are fabricated on different LCP substrate thicknesses and the loss characteristics are given in decibels per centimeter from 2 to 110 GHz. Peak transmission-line losses at 110 GHz vary between 0.88-2.55 dB/cm, depending on the line type and geometry. These results show, for the first time, that LCP has excellent dielectric properties for applications extending through millimeter-wave frequencies.

引用

页码：1343 / 1352

页数：10

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