| Presentation | 2007-10-26 Measurement of Millimeter-Wave Band Effective Conductivity of Sandwich-type Dielectric Substrates and Copper-clad Dielectric Substrates and Accuracy Enhancement by their comparison Thi Huong TRAN, Jiro HIROKAWA, Yoshinori KOGAMI, MAKOTO Ando, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The measurement method of millimeter-wave band effective conductivity of copper-clad dielectric substrates has been proposed using Whispering Gallery (WG) modes in circular disk samples with the diameter is about 20～40 times of wavelength. The method has an advantage for measuring the conductivity at many frequencies once by a resonator. This paper presents the effective conductivity measurement of sandwich-type dielectric substrates and copper-clad dielectric substrates with three types of copper foils in 40-65GHz band. At this moment it is difficult to compare the results with other methods, so that we propose to use two kinds of the WG resonators which have different field distribution and enhance the accuracy by getting agreements between them. The conductivity of electrodeposited copper foil is 50% to 70% of pure copper and that of rolled copper foils and both side shinning copper foils are 60% to 80%. The difference between the two types of the resonators is 7% for electrodeposited copper foils, 5% for both side shiny rolled copper foils and 2% for rolled copper foils. The error of conductivity is 15% by using the sandwich type WG resonator, 10% for the copper-clad resonator with dielectric thickness of 1.6mm and 6% for copper-clad resonator with thickness of 0.8mm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Whispering Gallery resonator / Conductivity / copper foil / millimeter wave |
| Paper # | EMCJ2007-69,MW2007-116 |
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| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 2007/10/18(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Electromagnetic Compatibility (EMCJ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Measurement of Millimeter-Wave Band Effective Conductivity of Sandwich-type Dielectric Substrates and Copper-clad Dielectric Substrates and Accuracy Enhancement by their comparison |
| Sub Title (in English) | |
| Keyword(1) | Whispering Gallery resonator |
| Keyword(2) | Conductivity |
| Keyword(3) | copper foil |
| Keyword(4) | millimeter wave |
| 1st Author's Name | Thi Huong TRAN |
| 1st Author's Affiliation | Department of Electrical and Electronic Engineering, Tokyo Institute of Technology() |
| 2nd Author's Name | Jiro HIROKAWA |
| 2nd Author's Affiliation | Department of Electrical and Electronic Engineering, Tokyo Institute of Technology |
| 3rd Author's Name | Yoshinori KOGAMI |
| 3rd Author's Affiliation | Department of Electrical and Electronic Engineering , Utsunomiya University |
| 4th Author's Name | MAKOTO Ando |
| 4th Author's Affiliation | Department of Electrical and Electronic Engineering, Tokyo Institute of Technology |
| Date | 2007-10-26 |
| Paper # | EMCJ2007-69,MW2007-116 |
| Volume (vol) | vol.107 |
| Number (no) | 278 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |