| Presentation | 1994/6/24 A low-voltage 2-GHz Si-bipolar direct-conversion quadrature modulator Tsuneo Tsukahara, Masayuki Ishikawa, Masahiro Muraguchi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A low-voltage 2GHz Si-bipolar direct-conversion quadrature modulator with a wide bandwidth is described.It features a "curren t-folded" double-balanced mixer operating at the low supply- voltage of 2V,and a tunable RC, CR 90℃ phase shifter that reduces the amplitude and phase imbalance over a wide bandwidth(0.8 to 2GHz).The modulator implemented using 18GHz Si-bipolar technology dissipates only 68mW at 2V.The image ratio at 2GHz is about -37dBc corresponding to a phase error of 1.6°Moreover,both second order and third order products,and local leakage are less thah -4OdBc. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Low-voltage operation / Quasi-microwave / Quadrature modnlation / Direct modulation / Si-bipolar |
| Paper # | ICD94-61 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 1994/6/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
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| Paper Information | |
| Registration To | Integrated Circuits and Devices (ICD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A low-voltage 2-GHz Si-bipolar direct-conversion quadrature modulator |
| Sub Title (in English) | |
| Keyword(1) | Low-voltage operation |
| Keyword(2) | Quasi-microwave |
| Keyword(3) | Quadrature modnlation |
| Keyword(4) | Direct modulation |
| Keyword(5) | Si-bipolar |
| 1st Author's Name | Tsuneo Tsukahara |
| 1st Author's Affiliation | NTT Radio Communication Systems Laboratories() |
| 2nd Author's Name | Masayuki Ishikawa |
| 2nd Author's Affiliation | NTT LSI Laboratories |
| 3rd Author's Name | Masahiro Muraguchi |
| 3rd Author's Affiliation | NTT Radio communication Systems Laboratories |
| Date | 1994/6/24 |
| Paper # | ICD94-61 |
| Volume (vol) | vol.94 |
| Number (no) | 125 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |