| Presentation | 2010/2/11 Dual-band Operation Bent-folded-Monopole Antenna Ippei KASHIWAGI, Masaki NISHIO, Shuichi OBAYASHI, Hiroki SHOKI, Tasuku MOROOKA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Antennas built in mobile terminals are required to archive small size and wide-band operation. Folded dipole/monopole antennas have been known as wide-band and higher input impedance characteristics compared to single wire antennas. We report a bent-folded-monopole antenna with dual-band operation at basic resonant frequency f_1 and second frequency f_2 where two times higher than the basic frequency f_1. The top of the bent-folded-monopole antenna is connected to the ground through a capacitor, and an inductor is also embedded at the antenna. The capacitor shifts the f_1, whereas the inductor adjusts only the f_2, thus both of the operating frequencies of the proposed antenna can be designed almost independently. Electromagnetic simulation and measurement results are provided to examine the antenna operation. We also report an example of the antenna designed for GSM/UMTS/CDMA systems. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Antenna / Folded-monopole antenna / dual-band operation / capacitor / inductor / GSM / UMTS / CDMA |
| Paper # | A・P2009-184 |
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| Conference Information | |
| Committee | AP |
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| Conference Date | 2010/2/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| 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) | Dual-band Operation Bent-folded-Monopole Antenna |
| Sub Title (in English) | |
| Keyword(1) | Antenna |
| Keyword(2) | Folded-monopole antenna |
| Keyword(3) | dual-band operation |
| Keyword(4) | capacitor |
| Keyword(5) | inductor |
| Keyword(6) | GSM |
| Keyword(7) | UMTS |
| Keyword(8) | CDMA |
| 1st Author's Name | Ippei KASHIWAGI |
| 1st Author's Affiliation | Corporate Research & Development Center, Toshiba Corp.() |
| 2nd Author's Name | Masaki NISHIO |
| 2nd Author's Affiliation | Corporate Research & Development Center, Toshiba Corp. |
| 3rd Author's Name | Shuichi OBAYASHI |
| 3rd Author's Affiliation | Corporate Research & Development Center, Toshiba Corp. |
| 4th Author's Name | Hiroki SHOKI |
| 4th Author's Affiliation | Corporate Research & Development Center, Toshiba Corp. |
| 5th Author's Name | Tasuku MOROOKA |
| 5th Author's Affiliation | Toshiba Research Consulting Corp. |
| Date | 2010/2/11 |
| Paper # | A・P2009-184 |
| Volume (vol) | vol.109 |
| Number (no) | 417 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |