| Presentation | 2006-04-20 Microwave high-speed liquid crystal devices using CPW with floating electrode Takehiko MAEDA, Toshihisa KAMEI, Yozo UTSUMI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We develop a transmission line with floating electrodes (FE) arranged on a coplanar waveguide (CPW), and we propose using this transmission line to reduce the decay time of a microwave-band liquid crystal loaded variable phase shifter. Using the proposed CPW-FE structure makes it possible to control both the rise time and decay time by varying the applied bias field, thereby allowing the decay time to be reduced. In the 18GHz band variable phase shifter we developed, we obtained a rise time of 75ms and a decay time of 200ms with a 500μm wide CPW central conductor, a gap of 20μm between the central conductor and ground plane, and a liquid crystal layer thickness of 50μm. Under these conditions, the birefringence Δε' of the liquid crystal was 0.23. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Liquid Crystal Devices / Coplanar Waveguide / Delay Line / Phase Shifter |
| Paper # | SCE2006-10,MW2006-10 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 2006/4/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Superconductive Electronics (SCE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Microwave high-speed liquid crystal devices using CPW with floating electrode |
| Sub Title (in English) | |
| Keyword(1) | Liquid Crystal Devices |
| Keyword(2) | Coplanar Waveguide |
| Keyword(3) | Delay Line |
| Keyword(4) | Phase Shifter |
| 1st Author's Name | Takehiko MAEDA |
| 1st Author's Affiliation | Department of Electronic Engineering, National Defense Academy() |
| 2nd Author's Name | Toshihisa KAMEI |
| 2nd Author's Affiliation | Department of Communications Engineering, National Defense Academy |
| 3rd Author's Name | Yozo UTSUMI |
| 3rd Author's Affiliation | Department of Communications Engineering, National Defense Academy |
| Date | 2006-04-20 |
| Paper # | SCE2006-10,MW2006-10 |
| Volume (vol) | vol.106 |
| Number (no) | 11 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |