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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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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Committee | MW |
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Conference Date | 2013/1/10(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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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) | 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) | 381 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |