| Presentation | 2003/5/15 Extension of Friis' Transmission Formula for Ultra Wideband Systems Jun-ichi TAKADA, Sathaporn PROMWONG, Wataru HACHITANI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The link budget of the free space propagation loss is usually estimated by using Friis' transmission formula. However, it is not directly applicable to the ultra wideband (UWB) radio transmission systems, in particular the single band impulse radio, as the formula is expressed as a function of the frequency. Moreover, the waveform may be distorted due to the frequency characteristics of the antenna, and the comparison between Tx and Rx waveforms is not straightforward. This paper proposes the extension of the Friis' transmission formula so as to treat the UWB signals. To take into account the waveform distortion, filters to the antennas and to the free space are introduced at the receiver side. In case, the transmission power criterion is the peak value of the matched filter output. The formulation is presented first, and then some numerical examples using the dipole antenna are described. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ultra wideband / UWB / impulse radio / Friis' transmission formula / waveform transmission |
| Paper # | WBS2003-8,MW2003-20 |
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| Conference Information | |
| Committee | MW |
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| Conference Date | 2003/5/15(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) | Extension of Friis' Transmission Formula for Ultra Wideband Systems |
| Sub Title (in English) | |
| Keyword(1) | ultra wideband |
| Keyword(2) | UWB |
| Keyword(3) | impulse radio |
| Keyword(4) | Friis' transmission formula |
| Keyword(5) | waveform transmission |
| 1st Author's Name | Jun-ichi TAKADA |
| 1st Author's Affiliation | Graduate School of Science and Engineering, Tokyo Institute of Technology() |
| 2nd Author's Name | Sathaporn PROMWONG |
| 2nd Author's Affiliation | Graduate School of Science and Engineering, Tokyo Institute of Technology |
| 3rd Author's Name | Wataru HACHITANI |
| 3rd Author's Affiliation | Graduate School of Science and Engineering, Tokyo Institute of Technology |
| Date | 2003/5/15 |
| Paper # | WBS2003-8,MW2003-20 |
| Volume (vol) | vol.103 |
| Number (no) | 75 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |