| Presentation | 2000/5/19 Broad-band Lumped-element 180-degree Hybrids Tadashi Kawai, Yoshihiro Kokubo, Isao Ohta, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A size reduction of passive devices is a key technology for a large-scale and cost-effective MMICs. From this point of view, the present paper treats 180-degree lumped-element hybrids systematically and analytically. We show various concrete circuit-constructions consisting of a phase inverter or symmetrical lattice networks, and their frequency propertices. As a result, several interesting circuit structures are suggested, i, e., a 180-degree hybrid with a phase inverter possesses about one octave bandwidth and the bandwidth ratio of a 180-degree hybrid constructed of lattice networks reaches 1.76 octaves. Next the validity of the design technique is demonstrated by an electromagnetic simulator (Sonnet). Finally we calculate the frequency characteristics of some 180-degree hybrid with regard to the conductor loss of those hybrids. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | microwave / microwave passive component / hybrid / directional coupler / lumped-element circuit |
| Paper # | MW2000-4 |
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| Conference Information | |
| Committee | MW |
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| Conference Date | 2000/5/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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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) | Broad-band Lumped-element 180-degree Hybrids |
| Sub Title (in English) | |
| Keyword(1) | microwave |
| Keyword(2) | microwave passive component |
| Keyword(3) | hybrid |
| Keyword(4) | directional coupler |
| Keyword(5) | lumped-element circuit |
| 1st Author's Name | Tadashi Kawai |
| 1st Author's Affiliation | Department of Electronics, Faculty of Engineering, Himeji Institute of Technology() |
| 2nd Author's Name | Yoshihiro Kokubo |
| 2nd Author's Affiliation | Department of Electronics, Faculty of Engineering, Himeji Institute of Technology |
| 3rd Author's Name | Isao Ohta |
| 3rd Author's Affiliation | Department of Electronics, Faculty of Engineering, Himeji Institute of Technology |
| Date | 2000/5/19 |
| Paper # | MW2000-4 |
| Volume (vol) | vol.100 |
| Number (no) | 94 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |