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Design of a small, low‐profile print antenna using a Peano line
Author(s) -
Terada Takashi,
Ide Kazuki,
Iwata Kazuki,
Fukusako Takeshi
Publication year - 2009
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.24511
Subject(s) - antenna measurement , antenna efficiency , coaxial antenna , antenna factor , radiation pattern , dipole antenna , optics , antenna (radio) , electrical engineering , loop antenna , monopole antenna , optoelectronics , engineering , materials science , physics
Abstract This article describes a small, low‐profile linear antenna that is fed at the tip of a half‐wavelength element to maintain the input impedance high with a metallic reflector at a position near the antenna. A CPW‐like port at one end of a linear element yields a capacitive coupling with the metallic reflector resulting in a resistance of 50 Ω at the serial resonant frequency. Using this feed structure, a low‐profile electrically small antenna using a Peano line antenna is presented. The antenna gain and radiation efficiency of this antenna is compared with those of a meander antenna with the same dimensions and feed structure. The radiation efficiency of the Peano line antenna increases by ∼2 dB compared with that of the meander line at the 1‐GHz band. Finally, the polarization parameters are presented. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1833–1838, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24511