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Presentation
A Prototype of Ku-Band Small-Sized LTCC Phase Shifter with RF-MEMS Switches
Daisuke Yamane (Tokyo Univ.), Kiyotaka Yamashita, Harunobu Seita (RISH), Hiroshi Toshiyoshi (Tokyo Univ.), Shigeo Kawasaki (JAXA ISAS)
Abstract (in Japanese) (See Japanese page) 
(in English) For realization of a small and cost-effective phase shifter, combination of a Low Temperature Co-fired Ceramics (LTCC) technology with a RF-MEMS technology is applicable. In this paper, the line- switched-type phase shifter with a 3D LTCC transmission line for downsizing by stacking several circuit-layers and a novel design of RF-MEMS switch for having low-insertion loss and high isolation characteristics was demonstrated. The design method and fabrication process were reported with experimental results. The insertion loss and phase error of the 4-bit digital phase shifter with the LTCC delay-line circuit with the size of 8mm x 8mm x 0.55mm was measured to be around 0.5 dB/bit and less than 5 % at 12.5GHz, respectively and the RF-MEMS Dual Single-Pole-Double-Throw (D-SPDT) switch showed insertion loss of 0.9dB, return loss of 12dB and isolation of 29dB at 12.5GHz under the driving voltage of less than 40V.
Keyword (in Japanese) (See Japanese page) 
(in English) phase shifter / LTCC / RF-MEMS switch / Ku-band / / / /  
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Conference Information
Committee MW  
Conference Date 2009-08-20 - 2009-08-21 
Place (in Japanese) (See Japanese page) 
Place (in English) KMUTNB, Bangkok, Thailand 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave and Millimeter-wave Technologies 
Paper Information
Registration To MW 
Conference Code 2009-08-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Prototype of Ku-Band Small-Sized LTCC Phase Shifter with RF-MEMS Switches 
Sub Title (in English)  
Keyword(1) phase shifter  
Keyword(2) LTCC  
Keyword(3) RF-MEMS switch  
Keyword(4) Ku-band  
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1st Author's Name Daisuke Yamane  
1st Author's Affiliation Tokyo University (Tokyo Univ.)
2nd Author's Name Kiyotaka Yamashita  
2nd Author's Affiliation Kyoto University (RISH)
3rd Author's Name Harunobu Seita  
3rd Author's Affiliation Kyoto University (RISH)
4th Author's Name Hiroshi Toshiyoshi  
4th Author's Affiliation Tokyo University (Tokyo Univ.)
5th Author's Name Shigeo Kawasaki  
5th Author's Affiliation Japan Astronotical Explaration Agency (JAXA ISAS)
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