| Presentation | 2000/2/17 A transverse slot cut on the corner of a triangular waveguide with 120-degree beamwidth for a base station antenna in millimeter-wave subscriber radio system Harunobu Maejima, Jiro Hirokawa, Makoto Ando, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An array of transverse slot antennas cut on the corner of a triangular waveguide is proposed for a base station in millimeter-wave subscriber radio system. The bent slot with an interior angle of 60 degrees provides a 120-degree beamwidth in the horizontal plane for the three-sector system. In principle, metal waveguide has a quite small transmission loss in comparison with a coaxial line and a microstrip line especially in millimeter wave. The slot array can synthesize a radiation pattern not to radiate in undesired direction in the vertical plane. The internal field distributions in the triangular waveguides are analyzed. For the enhancement of the field intensity, a metal wall is inserted from the back side in the triangular waveguide. The far field pattern with about 120-degree beamwidth and sufficient coupling of 50% are obtained at 12GHz band experimentally. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | triangular waveguide / slot antenna / sector beam / subscriber radio system / base station antenna |
| Paper # | SST99-64,ITS99-60,A・P99-186,RCS99-206,MW99-226 |
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| Conference Information | |
| Committee | AP |
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| Conference Date | 2000/2/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Antennas and Propagation (A・P) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A transverse slot cut on the corner of a triangular waveguide with 120-degree beamwidth for a base station antenna in millimeter-wave subscriber radio system |
| Sub Title (in English) | |
| Keyword(1) | triangular waveguide |
| Keyword(2) | slot antenna |
| Keyword(3) | sector beam |
| Keyword(4) | subscriber radio system |
| Keyword(5) | base station antenna |
| 1st Author's Name | Harunobu Maejima |
| 1st Author's Affiliation | Department of Electrical and Electronic Engineering, Tokyo Institute of Technology() |
| 2nd Author's Name | Jiro Hirokawa |
| 2nd Author's Affiliation | Department of Electrical and Electronic Engineering, Tokyo Institute of Technology |
| 3rd Author's Name | Makoto Ando |
| 3rd Author's Affiliation | Department of Electrical and Electronic Engineering, Tokyo Institute of Technology |
| Date | 2000/2/17 |
| Paper # | SST99-64,ITS99-60,A・P99-186,RCS99-206,MW99-226 |
| Volume (vol) | vol.99 |
| Number (no) | 634 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |