| Presentation | 2001/3/7 Study on Development of Compact Anechoic Chambers : Experimental Investigation of Distance between Antenna and Absorber Qing HAN, Keizo INAGAKI, Kyouichi IIGUSA, Takashi OHIRA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order to decide the smallest size of compact anechoic chamber used for measuring reactive near field of ESPAR antenna in the near future, we first of all, measured return loss of the ESPAR antenna with several different absorbers as reflect objects. Therefore, we obtained results of the relation between the return loss of the antenna and distance L (from the antenna to the absorbers). From the results, we concluded that a thick pyramid absorber could be used in a very near distance from the antenna and a relative small compact anechoic chamber could be build by using this kind of absorber. Then, we evaluate the reflective equation of model of the experimental network by means of signal flow graph and radar equation. However, theoretical results obtained based on the above reflective equation do not agree with the theoretical ones well. After introducing a new test function, like A=BL^<α>, for reflective quantity A and distance L, we got a good agreement between the theoretical and expetimental results. This probably suggest, according to the fitting results of the α, that there is a propagating relation between A with L. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Compact Anechonic chamber / Radiowave absorber / ESPAR antenna / Compact antenna / Low cost / Reactive near field |
| Paper # | SST2000-71,A・P2000-205,RCS2000-205,MW2000-196 |
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| Conference Information | |
| Committee | AP |
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| Conference Date | 2001/3/7(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 | |
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| 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 on Development of Compact Anechoic Chambers : Experimental Investigation of Distance between Antenna and Absorber |
| Sub Title (in English) | |
| Keyword(1) | Compact Anechonic chamber |
| Keyword(2) | Radiowave absorber |
| Keyword(3) | ESPAR antenna |
| Keyword(4) | Compact antenna |
| Keyword(5) | Low cost |
| Keyword(6) | Reactive near field |
| 1st Author's Name | Qing HAN |
| 1st Author's Affiliation | ATR Adaptive Communications Research Laboratories() |
| 2nd Author's Name | Keizo INAGAKI |
| 2nd Author's Affiliation | ATR Adaptive Communications Research Laboratories |
| 3rd Author's Name | Kyouichi IIGUSA |
| 3rd Author's Affiliation | ATR Adaptive Communications Research Laboratories |
| 4th Author's Name | Takashi OHIRA |
| 4th Author's Affiliation | ATR Adaptive Communications Research Laboratories |
| Date | 2001/3/7 |
| Paper # | SST2000-71,A・P2000-205,RCS2000-205,MW2000-196 |
| Volume (vol) | vol.100 |
| Number (no) | 659 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |