Presentation 2007-05-24
Recent Advances in RF Devices for Future Wireless Systems
Yo YAMAGUCHI, Munenari KAWASHIMA, Takana Kaho, Kazuhiro UEHARA,
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Abstract(in English) An ultimate software-defined radio might convert RF signals to digital signals by an analog-digital converter(ADC). Such ADC requires ultra high-resolution and ultra fast sampling rate because ordinary radios receive RF signals of from about -20dBm to -100dBm. It is unacceptable for portable wireless terminals. Therefore, analog devices such as low noise amplifiers, frequency converters, power amplifiers cannot be eliminated from those terminals. We review recent advantages in those vital RF devices, broadband LNAs, broadband mixers, and polar loop transmitters. We also mention three-dimensional MMIC technology, which makes highly integration and cost reduction of MMICs possible.
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Keyword(in English) low noise amplifier / frequency converter / power amplifier / three-dimensional MMIC / software-defined radio / cognitive radio
Paper # SR2007-9
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Conference Date 2007/5/17(1days)
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Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Recent Advances in RF Devices for Future Wireless Systems
Sub Title (in English)
Keyword(1) low noise amplifier
Keyword(2) frequency converter
Keyword(3) power amplifier
Keyword(4) three-dimensional MMIC
Keyword(5) software-defined radio
Keyword(6) cognitive radio
1st Author's Name Yo YAMAGUCHI
1st Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation()
2nd Author's Name Munenari KAWASHIMA
2nd Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
3rd Author's Name Takana Kaho
3rd Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
4th Author's Name Kazuhiro UEHARA
4th Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
Date 2007-05-24
Paper # SR2007-9
Volume (vol) vol.107
Number (no) 69
Page pp.pp.-
#Pages 6
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