Presentation 2003/11/11
60-GHz-band Coplanar Active Filters
Masaharu Ito, Kenichi Maruhashi, Shuya Kishimoto, Keiichi Ohata,
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Abstract(in English) This paper presents the design and performance of 60-GHz-band coplanar monolithic microwave integrated circuit (MMIC) active filters. To compensate for the loss of the passive filter, a resonator composed of a quarter-wavelength line is terminated by a circuit with a constant negative resistance over a wide frequency band. Cross-coupling is introduced to make the attenuation poles on both sides of the pass-band. We develop two types of two-stage filter: one with medium bandwidth and the other with narrow bandwidth. The former shows an insertion loss of 3.0 dB with a 3-dB bandwidth of 2.6 GHz at a center frequency of 65.0 GHz. This filter also shows a noise figure of 10.5 dB. The latter filter shows an insertion loss of 2.8 dB with a 10-dB bandwidth of 2.1 GHz at a center frequency of 65.0 GHz. It also shows an output power of 5.0 dBm at a 1-dB compression point. The size of the MMIC filters is 2.5×1.1 mm^2.
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Keyword(in English) Millimeter-wave / active filter / negative resistance circuit / cross-coupling / coplanar waveguide
Paper # ED2003-173
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Committee ED
Conference Date 2003/11/11(1days)
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Registration To Electron Devices (ED)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) 60-GHz-band Coplanar Active Filters
Sub Title (in English)
Keyword(1) Millimeter-wave
Keyword(2) active filter
Keyword(3) negative resistance circuit
Keyword(4) cross-coupling
Keyword(5) coplanar waveguide
1st Author's Name Masaharu Ito
1st Author's Affiliation Photonic and Wireless Devices Research Laboratories, NEC Corporation()
2nd Author's Name Kenichi Maruhashi
2nd Author's Affiliation Photonic and Wireless Devices Research Laboratories, NEC Corporation
3rd Author's Name Shuya Kishimoto
3rd Author's Affiliation Photonic and Wireless Devices Research Laboratories, NEC Corporation
4th Author's Name Keiichi Ohata
4th Author's Affiliation Photonic and Wireless Devices Research Laboratories, NEC Corporation
Date 2003/11/11
Paper # ED2003-173
Volume (vol) vol.103
Number (no) 437
Page pp.pp.-
#Pages 6
Date of Issue