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Beam‐switched rhombic antenna
Author(s) -
Fusco V. F.,
Li R.
Publication year - 2001
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.1091
Subject(s) - antenna (radio) , electrical engineering , microwave , beam (structure) , beam waveguide antenna , antenna measurement , physics , engineering , optics , periscope antenna , telecommunications
In this paper, we show how a rhombic antenna can be operated in a degenerate fashion in order to produce a switched beam. The antenna demonstrator designed to operate at 1 GHz is shown to beam scan in elevation by about 10°, controlled only by the use of a switched 500 Ω resistor. Under these conditions, the antenna exhibits a sending end impedance variation of 1.6:1. This type of antenna could find application for use in low‐cost vehicular and asset‐tracking applications. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 29: 84–86, 2001.