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Near‐field coupling between a printed antenna and a Fabry Perot resonator: Experimental study of the radiation properties at millimeter wave frequencies
Author(s) -
Sauleau Ronan,
Coquet Philippe,
Matsui Toshiaki
Publication year - 2003
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.11084
Subject(s) - radiator (engine cooling) , resonator , coupling (piping) , antenna (radio) , microwave , optics , reflector (photography) , slot antenna , physics , radiation pattern , optoelectronics , materials science , engineering , electrical engineering , telecommunications , metallurgy , light source
Compact focusing antennas, consisting of a Fabry–Perot (FP) cavity coupled to a printed source, are studied in the 60‐GHz band. Several configurations of antennas, including plane‐parallel or plano‐convex cavities excited by a patch antenna or an array, are considered and compared. In particular, their radiation characteristics are investigated experimentally as a function of the operating frequency and the thickness of the free‐space coupling region separating the primary radiator from the resonator. The optimum coupling conditions are also defined to maximize the efficiency and minimize the sidelobe level. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 38: 438–443, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11084