| Presentation | 2012/8/20 Automatic Impedance Matching of a Tablet Handset 4-Branch MRC Array Close to the Human Hands Makoto YAMAZAKI, Kazuhiro HONDA, Koichi OGAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents basic investigations on the automatic impedance matching implemented in a 4-branch MRC array used for a digital broadcasting portable TV set. In the first step, three-dimensional estimation functions were evaluated by theoretical analysis in order to investigate the possibility of adopting the gradient method as an optimization algorithm. Considerations were also given on the stability and convergence properties of the algorithm. Moreover, we consider the insertion loss of a varactor diode used in the matching circuit. Finally, assessments of communication quality, such as the signal bit error rate (BER), were conducted to gain useful knowledge of the way and the degree to which the proposed automatic impedance matching might impact the reduction of the signal-to-noise ratio (SNR) for achieving the prescribed BER. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Maximum ratio combining diversity antenna / Automatic impedance matching / Diversity gain / Digital TV |
| Paper # | A・P2012-68 |
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| Conference Information | |
| Committee | AP |
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| Conference Date | 2012/8/20(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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| 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) | Automatic Impedance Matching of a Tablet Handset 4-Branch MRC Array Close to the Human Hands |
| Sub Title (in English) | |
| Keyword(1) | Maximum ratio combining diversity antenna |
| Keyword(2) | Automatic impedance matching |
| Keyword(3) | Diversity gain |
| Keyword(4) | Digital TV |
| 1st Author's Name | Makoto YAMAZAKI |
| 1st Author's Affiliation | Graduate School of Engineering, Toyama University() |
| 2nd Author's Name | Kazuhiro HONDA |
| 2nd Author's Affiliation | Graduate School of Engineering, Toyama University |
| 3rd Author's Name | Koichi OGAWA |
| 3rd Author's Affiliation | Graduate School of Engineering, Toyama University |
| Date | 2012/8/20 |
| Paper # | A・P2012-68 |
| Volume (vol) | vol.112 |
| Number (no) | 187 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |