Permittivity measurement for biological application using micromachined probe

Jung Mu Kim, Dong Hoon Oh, Jae Hyoung Park, Jei Won Cho, Youngwoo Kwon, Changyul Cheon, Yong Kweon Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

We implemented a micromachined probe for the measurement of biological properties using MEMS technology. We experimentally showed the suitability of the micromachined probe in biological applications through liquids and solid experiments. The micromachined probe consists of a CPW and strip line between Benzo Cyclo Butene (BCB) layers because it has excellent properties such as high resistivity, low loss tangent and low permittivity at higher frequencies. The aperture size of the micromachined probe is only 650 μm × 70 μm. We measured the permittivity of a number of well- known liquids - 0.5, 0.9 and 1.3 % saline, acetone, and muscle and fat of pork - as biological samples using the micromachined probe after liquid calibration. In this paper, we first demonstrate that the micromachined probe can provide broadband measurement of measurable solid materials, such as biological samples, and also of well- known liquids at microwave frequencies.

Original languageEnglish
Title of host publication2005 IEEE MTT-S International Microwave Symposium Digest
Pages1809-1812
Number of pages4
DOIs
StatePublished - 2005
Event2005 IEEE MTT-S International Microwave Symposium - Long Beach, CA, United States
Duration: 12 Jun 200517 Jun 2005

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2005
ISSN (Print)0149-645X

Conference

Conference2005 IEEE MTT-S International Microwave Symposium
Country/TerritoryUnited States
CityLong Beach, CA
Period12/06/0517/06/05

Keywords

  • MEMS
  • Micromachined probe
  • Permittivity measurement

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