| Presentation | 2005-09-12 Construction of Distributed Coupled-Line 3-dB Hybrid in Fully-Planar Structure Takao FUJII, Isao OHTA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents a construction of coupled-line 3dB couplers in a fully-planar structure. By connecting two identical λ/4 coupled-lines in cascade by two λ/4 non-coupled lines, a realizable combination of the even- and odd-mode characteristic impedances for the coupled-lines is fulfilled. After the fundamental behavior of TEM-line couplers is described, microstrip couplers are designed actually. As a result, a 27% bandwidth is obtained for 0.5 dB amplitude balance tolerance, and return loss and isolation better than 20dB. In addition, em-simulations performed for three circuit configurations verify the design procedure and the flexibility of circuit layout. Finally, experimental results are shown. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microstrip / Directional coupler / Backward coupler / Hybrid / Coupled-line / Microwave |
| Paper # | MW2005-73 |
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| Conference Information | |
| Committee | MW |
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| Conference Date | 2005/9/5(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
| Secretary | |
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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) | Construction of Distributed Coupled-Line 3-dB Hybrid in Fully-Planar Structure |
| Sub Title (in English) | |
| Keyword(1) | Microstrip |
| Keyword(2) | Directional coupler |
| Keyword(3) | Backward coupler |
| Keyword(4) | Hybrid |
| Keyword(5) | Coupled-line |
| Keyword(6) | Microwave |
| 1st Author's Name | Takao FUJII |
| 1st Author's Affiliation | Graduate School of Engineering, University of Hyogo() |
| 2nd Author's Name | Isao OHTA |
| 2nd Author's Affiliation | Graduate School of Engineering, University of Hyogo |
| Date | 2005-09-12 |
| Paper # | MW2005-73 |
| Volume (vol) | vol.105 |
| Number (no) | 271 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |