| Presentation | 2010/10/7 Study of Cross Polarization Discrimination of Dual Circularly Polarized Concentric Array Radial Line Slot Antenna Excited by Rotating Modes from Front and Back Sides Hideki UEDA, Jiro HIROKAWA, Makoto ANDO, Shuichi KOREEDA, Osamu AMANO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A dual circularly polarized radial line slot antenna (DCP-RLSA) using lightweight honeycomb structures as waveguides is investigated. Required specifications are relative bandwidth of 5% (±2.5%), gain of 20dBi, diameter of 8 wavelengths and cross polarization discrimination (XPD) of 30dB. The DCP-RLSA is composed of two layers of radial waveguide connected by a circular E bend and two feeding structures for rotating mode excitations on the front and the back sides. Measured result shows over 20dBi directivities in the required bandwidth of 5%. However, XPDs for operations of the right- and the left-handed circular polarizations are reduced to 13.5dB and 21.3dB, respectively. In this paper, main reason of XPD reduction is a degradation of the rotating mode quality and a reflection of residual power in the RLSA in conclusion. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Radial Line Slot Antenna / Dual Circularly Polarization / Cross Polarization Discrimination / Rotating Mode |
| Paper # | A・P2010-84 |
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| Conference Information | |
| Committee | AP |
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| Conference Date | 2010/10/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| 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) | Study of Cross Polarization Discrimination of Dual Circularly Polarized Concentric Array Radial Line Slot Antenna Excited by Rotating Modes from Front and Back Sides |
| Sub Title (in English) | |
| Keyword(1) | Radial Line Slot Antenna |
| Keyword(2) | Dual Circularly Polarization |
| Keyword(3) | Cross Polarization Discrimination |
| Keyword(4) | Rotating Mode |
| 1st Author's Name | Hideki UEDA |
| 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 |
| 4th Author's Name | Shuichi KOREEDA |
| 4th Author's Affiliation | NEC Toshiba Space Systems |
| 5th Author's Name | Osamu AMANO |
| 5th Author's Affiliation | NEC Toshiba Space Systems |
| Date | 2010/10/7 |
| Paper # | A・P2010-84 |
| Volume (vol) | vol.110 |
| Number (no) | 223 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |