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Multibeam Leaky-Wave Antenna Using Slot and Metasurface
- Authors
- Park, Woo-Young; Lim, Sungjoon
- Issue Date
- Dec-2010
- Publisher
- WILEY-BLACKWELL
- Keywords
- multibeam; composite right/left-handed; dual CRLH; defected ground structure; metamaterials; transmission lines
- Citation
- MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, v.52, no.12, pp 2759 - 2762
- Pages
- 4
- Journal Title
- MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
- Volume
- 52
- Number
- 12
- Start Page
- 2759
- End Page
- 2762
- ISSN
- 0895-2477
1098-2760
- Abstract
- A novel multibeam leaky-wave (LW) antenna is demonstrated in this letter. A beam passing through the defected ground structure is radiated at a fixed angle, while one passing through the D-composite right/left-handed metasurface moves front backward to forward including the broadside direction. The peculiar properties of both beams are described theoretically and experimentally according to the basic transmission line (TL) theory and Cherenkov radiation principles. By changing the frequency from 3.9 to 4.2 GHz, the angle of one beam changes from -7 degrees to +10 degrees, whereas that of the other is fixed at 55 degrees. Therefore, the proposed multibeam LW antenna is suitable for detecting immovable and movable objects at the same time. (C) 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:2759-2762, 2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25587
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