| Presentation | 1999/1/21 A 5-GHz Frequency-Doubling Quadrature Modulator with a Ring-Type Local Oscillator Hiroto Matsuoka, Tsuneo Tsukahara, Shinsuke Konaka, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A 5-GHz direct-conversion quadrature modulator has been developed using a frequency-doubling circuit technique to integrate a local oscillator on a single silicon chip. A three-level mixer, newly designed with symmetrical topology for two local oscillator inputs, is used to apply the frequency-doubling technique, so low image component levels of the modulated signals are achieved. The modulator is implemented on a single chip using Si-bipolar process technology with a cutoff frequency of 40-GHz. The image ratio is less than -34 dBc at a 5-GHz carrier frequency. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Modulator / Ring oscillator / Wireless LAN / Frequency-doubling / three-level mixer / Si-bipolar |
| Paper # | ED98-207,MW98-170,ICD98-274 |
| Date of Issue |
| Conference Information | |
| Committee | ICD |
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| Conference Date | 1999/1/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| 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 5-GHz Frequency-Doubling Quadrature Modulator with a Ring-Type Local Oscillator |
| Sub Title (in English) | |
| Keyword(1) | Modulator |
| Keyword(2) | Ring oscillator |
| Keyword(3) | Wireless LAN |
| Keyword(4) | Frequency-doubling |
| Keyword(5) | three-level mixer |
| Keyword(6) | Si-bipolar |
| 1st Author's Name | Hiroto Matsuoka |
| 1st Author's Affiliation | NTT Integrated Information & Energy System Laboratories() |
| 2nd Author's Name | Tsuneo Tsukahara |
| 2nd Author's Affiliation | NTT System Electronics Laboratories |
| 3rd Author's Name | Shinsuke Konaka |
| 3rd Author's Affiliation | NTT Integrated Information & Energy System Laboratories |
| Date | 1999/1/21 |
| Paper # | ED98-207,MW98-170,ICD98-274 |
| Volume (vol) | vol.98 |
| Number (no) | 524 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |