| Presentation | 2005-12-16 An active integrated antenna mixer with RF-IF high conversion efficiency Yusuke TAKASHINA, Minoru SANAGI, Kazuhiro FUJIMORI, Shigeji NOGI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order to realize more miniaturized wireless terminals with multi-function, an active integrated antenna which receives RF signal and down-converts it into IF signal has been investigated. The active antenna consists of a patch antenna and a feedback oscillator operating as a self-oscillating harmonic mixer where the IF is equal to difference between the RF and double of local oscillating (LO) frequency. Characteristics of a used FET were measured so that optimum LO input signal level to the gate and optimum feedback factor in local oscillation with maximum RF-IF conversion efficiency were obtained. By experiments of the self-oscillating mixer with the optimum feedback factor, the maximum conversion efficiency was obtained. In the active integrated antenna with the optimum mixer, high RF-IF conversion efficiency of -0.8dB was achieved. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microwave / Active integrated antenna / Self-oscillating mixer / Harmonic mixer |
| Paper # | MW2005-130 |
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| Conference Information | |
| Committee | MW |
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| Conference Date | 2005/12/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Microwaves (MW) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An active integrated antenna mixer with RF-IF high conversion efficiency |
| Sub Title (in English) | |
| Keyword(1) | Microwave |
| Keyword(2) | Active integrated antenna |
| Keyword(3) | Self-oscillating mixer |
| Keyword(4) | Harmonic mixer |
| 1st Author's Name | Yusuke TAKASHINA |
| 1st Author's Affiliation | Graduate School of National Science and Technology, Okayama University() |
| 2nd Author's Name | Minoru SANAGI |
| 2nd Author's Affiliation | Graduate School of National Science and Technology, Okayama University |
| 3rd Author's Name | Kazuhiro FUJIMORI |
| 3rd Author's Affiliation | Graduate School of National Science and Technology, Okayama University |
| 4th Author's Name | Shigeji NOGI |
| 4th Author's Affiliation | Graduate School of National Science and Technology, Okayama University |
| Date | 2005-12-16 |
| Paper # | MW2005-130 |
| Volume (vol) | vol.105 |
| Number (no) | 486 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |