| Presentation | 2013/1/10 120-GHz-band20-Gbit/sQpSKTransmitterandReceivermodules Hiroyuki TAKAHASHI, Toshihiko KOSUGI, Akihiko HIRATA, Jun TAKEUCHI, Koichi MURATA, Naoya KUKUTSU, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | NTT laboratories are developing a 120-GHz-band wireless link using quadrature-phase-shift keying (QPSK) We have reported 10-Gbit/s QPSK modulator and demodulator circuits and evaluation of the bit error performance This paper presents the 120-GHz-band QPSK transmitter and receiver with the capacity of 20-Gbit/s and larger output power The transmitter circuits consist of a 20-Gbit/s QPSK modulator with direct modulation, differential amplifiers for data, a power amplifier, and an output-power monitor circuit To achieve the high-speed QPSK modulation, the modulator circuit m the transmitter has gain-control terminals which provide optimum modulation accuracy The receiver circuits consist of differentially coherent detector, voltage-controlled phase shifter, and low-noise amplifier We fabricated QPSK transmitter and receiver circuits on microwave monolithic integrated circuits (MMICs) and mounted these MMICs in WR-8 waveguide modules We evaluated the bit error rate (BER) for 22 2-Gbit/s real-time data transmission The transmitter and receiver exhibit the BER of smaller than 10^<-10> at a receiver power of -35 dBm |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Millimeter-wave wireless / QPSK / MMIC / InP HEMT |
| Paper # | ED2012-116 |
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| Conference Information | |
| Committee | ED |
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| Conference Date | 2013/1/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electron Devices (ED) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | 120-GHz-band20-Gbit/sQpSKTransmitterandReceivermodules |
| Sub Title (in English) | |
| Keyword(1) | Millimeter-wave wireless |
| Keyword(2) | QPSK |
| Keyword(3) | MMIC |
| Keyword(4) | InP HEMT |
| 1st Author's Name | Hiroyuki TAKAHASHI |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation() |
| 2nd Author's Name | Toshihiko KOSUGI |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation |
| 3rd Author's Name | Akihiko HIRATA |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation |
| 4th Author's Name | Jun TAKEUCHI |
| 4th Author's Affiliation | Nippon Telegraph and Telephone Corporation |
| 5th Author's Name | Koichi MURATA |
| 5th Author's Affiliation | Nippon Telegraph and Telephone Corporation |
| 6th Author's Name | Naoya KUKUTSU |
| 6th Author's Affiliation | Nippon Telegraph and Telephone Corporation |
| Date | 2013/1/10 |
| Paper # | ED2012-116 |
| Volume (vol) | vol.112 |
| Number (no) | 380 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |