| Presentation | 2005-09-12 Folded Waveguide for Planar Antenna with Non-Grating Lobe Kenichi MASAKI, Kouichi YAMAOKA, Futoshi KUROKI, Tsukasa Yoneyama, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A double-layered folded oversized-waveguide, which consists of a 2-dimensional parabolic reflector, fed by a high permittivity LSE-NRD guide radiator in the lower layer, and a radiating slotted array fed by an oversized-wavegude in the upper layer, was designed for a millimeter-wave planar antenna. Main emphasis was placed on suppression of grating robes in the planar antenna, and thus, the radiating slots were spaced by a period of less than a free space wavelength by filling a Teflon material in the oversized-wavegude in the upper layer. Moreover, it was theoretically considered that a metal plate partition with finite thickness between the lower and upper layers was introduced in the folded oversized-waveguide since permanent magnets for circulators had to embed in the metal plate partition. Based on the theoretical consideration, the double-layered folded oversized-waveguide with the metal plate partition with finite thickness was fabricated and tested at 60GHz. The levels of the grating robes were measured to be less than 20dB compared with that of the main robe, and hence, successful grating robe suppression. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | NRD guide / Folded Waveguides / Microwaves and Millimeter-Waves |
| Paper # | MW2005-75 |
| Date of Issue |
| Conference Information | |
| Committee | MW |
|---|---|
| Conference Date | 2005/9/5(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 | Microwaves (MW) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Folded Waveguide for Planar Antenna with Non-Grating Lobe |
| Sub Title (in English) | |
| Keyword(1) | NRD guide |
| Keyword(2) | Folded Waveguides |
| Keyword(3) | Microwaves and Millimeter-Waves |
| 1st Author's Name | Kenichi MASAKI |
| 1st Author's Affiliation | Kure National College of Technology() |
| 2nd Author's Name | Kouichi YAMAOKA |
| 2nd Author's Affiliation | Kure National College of Technology |
| 3rd Author's Name | Futoshi KUROKI |
| 3rd Author's Affiliation | Kure National College of Technology |
| 4th Author's Name | Tsukasa Yoneyama |
| 4th Author's Affiliation | Tohoku Institute of Technology |
| Date | 2005-09-12 |
| Paper # | MW2005-75 |
| Volume (vol) | vol.105 |
| Number (no) | 271 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |