| Presentation | 2004/4/16 Effect of Correlation Bandwidth Expansion with ESPAR Antenna : Geometrical Optical Analysis in Multipath Propagation Environment Tomoshige FURUHI, Takashi OHIRA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In general, wide-band wireless system in multipath propagation environment is subject to degradation of transmission quality due to frequency-selective fading. It is also already known that the use of directional antenna can improve the transmission quality. In this paper, we have evaluated the expansion of correlation bandwidth when ESPAR antenna is applied for multipath propagation environment. We employ ray-tracing method to compare ESPAR antenna to selection combining antennas. We assume that ESPAR antenna choose its reactance set from the several discrete values according to the reception power as cost function. We show that ESPAR antenna provides wider correlation bandwidth, shorter delay spread and larger reception power than those of the compared antennas. Especially the median of correlation bandwidth of 7-element ESPAR antenna is found to be 8 times larger. It is also shown that the correlation bandwidth of ESPAR antenna is wider as the number of element increases. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ESPAR antenna / correlation bandwidth / delay spread / diversity / multipath propagation / ray trace |
| Paper # | RCS2004-24,CQ2004-24 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2004/4/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effect of Correlation Bandwidth Expansion with ESPAR Antenna : Geometrical Optical Analysis in Multipath Propagation Environment |
| Sub Title (in English) | |
| Keyword(1) | ESPAR antenna |
| Keyword(2) | correlation bandwidth |
| Keyword(3) | delay spread |
| Keyword(4) | diversity |
| Keyword(5) | multipath propagation |
| Keyword(6) | ray trace |
| 1st Author's Name | Tomoshige FURUHI |
| 1st Author's Affiliation | Murata Manufacturing Co., Ltd.() |
| 2nd Author's Name | Takashi OHIRA |
| 2nd Author's Affiliation | ATR Adaptive Communications Research Laboratories |
| Date | 2004/4/16 |
| Paper # | RCS2004-24,CQ2004-24 |
| Volume (vol) | vol.104 |
| Number (no) | 20 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |