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Ultra‐broad and multiband 3D‐monopole antennas
Author(s) -
Elsheakh Dalia M.,
Safwat Amr M. E.
Publication year - 2011
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.26417
Subject(s) - broadband , omnidirectional antenna , monopole antenna , microwave , magnetic monopole , electrical engineering , bandwidth (computing) , physics , helical antenna , meander (mathematics) , directional antenna , radiation pattern , dipole antenna , engineering , antenna (radio) , optics , slot antenna , telecommunications , geometry , mathematics , quantum mechanics
Novel three‐dimensional antennas that provide either multibands or ultra‐broadband are presented. The proposed structures are based on monopole antennas loaded with meander lines. For operation of multibands, the monopole is loaded with different‐length meander lines connected in series. The proposed antenna has 55 × 66 × 130 mm 3 volume and operates in the following bands: 200 MHz, 800 MHz, 1.1 GHz, 1.4 GHz, 2.45 GHz, 3 GHz, and 3.7 GHz. Ultra‐broadband is achieved by connecting four monopoles in parallel. Each monopole is loaded with two meander lines. The resulting bandwidth extends from 400 MHz to 3.5 GHz, which is suitable for digital video broadcasting‐T applications, and the size is 53 × 68 × 87 mm 3 . Both antennas have omnidirectional radiation patterns. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2843–2846, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26417