| Presentation | 2000/10/7 Basic Study of Espar Antennas : Simultaneous Forming of a Beam and Multiple Nulls Akira Akiyama, Koichi Gyoda, Takashi Ohira, Makoto Ando, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The espar antenna has been proposed for low cost analog adaptive beam forming. The capability of simultaneous beam and multiple null forming of espar antenna is evaluated by the method of moment analysis. It is found that a 5dBi beam gain and -15dBi multiple nulls for 7-element antennas are formed simultaneously in almost all directions, excluding the region where the direction of the beam and the direction of the nulls are within about 30degrees. It is also found that the deeper multiple nulls are formed symmetrically to the direction of a passive element. The region of multiple nulls is widened in proportion to the number of elements, while the difference between 7 and 9 elements is slight. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | adptive antenna / espar antenna / null forming / method of moment |
| Paper # | A・P2000-128,SANE2000-105,RCS2000-151 |
| Date of Issue |
| Conference Information | |
| Committee | AP |
|---|---|
| Conference Date | 2000/10/7(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) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Basic Study of Espar Antennas : Simultaneous Forming of a Beam and Multiple Nulls |
| Sub Title (in English) | |
| Keyword(1) | adptive antenna |
| Keyword(2) | espar antenna |
| Keyword(3) | null forming |
| Keyword(4) | method of moment |
| 1st Author's Name | Akira Akiyama |
| 1st Author's Affiliation | Dept.of Electrical and Electronic Eng., Tokyo Institute of Technology() |
| 2nd Author's Name | Koichi Gyoda |
| 2nd Author's Affiliation | ATR Adaptive Communication Research Laboratories |
| 3rd Author's Name | Takashi Ohira |
| 3rd Author's Affiliation | ATR Adaptive Communication Research Laboratories |
| 4th Author's Name | Makoto Ando |
| 4th Author's Affiliation | Dept.of Electrical and Electronic Eng., Tokyo Institute of Technology |
| Date | 2000/10/7 |
| Paper # | A・P2000-128,SANE2000-105,RCS2000-151 |
| Volume (vol) | vol.100 |
| Number (no) | 341 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |