| Presentation | 2019-03-14 A tunable impedance transformer that draws a spiral locus on the Smith chart by frequency sweep Asako Suzuki, Motoaki Miyazaki, Naoki Sakai, Toshio Ishizaki, Satoshi Tsukamoto, Takashi Ohira, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a tunable impedance transformer that draws a spiral locus on the Smith chart by frequency sweep and an automatic matching system. This system consists of six parts: RF power supply (VCO and amplifier 30W), circulator to protect the amplifier, proposed impedance matching circuit, reflected wave detection circuit and microcomputer. We design and prototyp the impedance matching circuit. We prototype the automatic matching system in which these components are combined to form an impedance matching circuit. We confirm the automatic matching function of the proposed system for RF power 10W and frequency sweep range 2.4 - 2.5 GHz. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Auto Matching / Power Matching / 2.4GHz band / Frequency Sweep |
| Paper # | MW2018-164,ICD2018-108 |
| Date of Issue | 2019-03-07 (MW, ICD) |
| Conference Information | |
| Committee | MW / ICD |
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| Conference Date | 2019/3/14(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Integrated Circuit/Microwave Technologies |
| Chair | Masahiro Muraguchi(TUS) / Hideto Hidaka(Renesas) |
| Vice Chair | Yoshinori Kogami(Utsunomiya Univ.) / Hiroshi Okazaki(NTT DOCOMO) / Kenichi Tajima(Mitsubishi Electric) / Makoto Nagata(Kobe Univ.) |
| Secretary | Yoshinori Kogami(HITACHI) / Hiroshi Okazaki(Utsunomiya Univ.) / Kenichi Tajima(Panasonic) / Makoto Nagata(Tohoku Univ.) |
| Assistant | Mizuki Motoyoshi(Tohoku Univ.) / Satoshi Yoshida(Kagoshima Univ.) / Hiroyuki Ito(Tokyo Inst. of Tech.) / Masatoshi Tsuge(Socionext) / Tetsuya Hirose(Kobe Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Microwaves / Technical Committee on Integrated Circuits and Devices |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A tunable impedance transformer that draws a spiral locus on the Smith chart by frequency sweep |
| Sub Title (in English) | |
| Keyword(1) | Auto Matching |
| Keyword(2) | Power Matching |
| Keyword(3) | 2.4GHz band |
| Keyword(4) | Frequency Sweep |
| 1st Author's Name | Asako Suzuki |
| 1st Author's Affiliation | Adamant Namiki Precision Jewel co., ltd.(Adamant Namiki) |
| 2nd Author's Name | Motoaki Miyazaki |
| 2nd Author's Affiliation | Toyohashi University of Technology(Toyohashi Univ. Tech.) |
| 3rd Author's Name | Naoki Sakai |
| 3rd Author's Affiliation | Toyohashi University of Technology(Toyohashi Univ. Tech.) |
| 4th Author's Name | Toshio Ishizaki |
| 4th Author's Affiliation | Ryukoku University(Ryukoku Univ.) |
| 5th Author's Name | Satoshi Tsukamoto |
| 5th Author's Affiliation | Toyohashi University of Technology(Toyohashi Univ. Tech.) |
| 6th Author's Name | Takashi Ohira |
| 6th Author's Affiliation | Toyohashi University of Technology(Toyohashi Univ. Tech.) |
| Date | 2019-03-14 |
| Paper # | MW2018-164,ICD2018-108 |
| Volume (vol) | vol.118 |
| Number (no) | MW-506,ICD-507 |
| Page | pp.pp.43-48(MW), pp.43-48(ICD), |
| #Pages | 6 |
| Date of Issue | 2019-03-07 (MW, ICD) |