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Wideband tapered monopole antenna with 2 by 2 resonant loop array for electromagnetic energy harvesting and microwave power transmission
Author(s) -
Lee ChangHyun,
Park JaeHyun,
Lee JeongHae
Publication year - 2017
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.30387
Subject(s) - monopole antenna , stub (electronics) , dipole antenna , electrical engineering , antenna efficiency , antenna measurement , loop antenna , antenna (radio) , energy harvesting , physics , wideband , microwave , acoustics , antenna factor , engineering , telecommunications , power (physics) , quantum mechanics
This letter presents the development of a hybrid antenna for electromagnetic energy harvesting and microwave power transmission (MPT). The antenna was designed by mounting a 2 × 2 array resonant loop antennas on a wideband tapered monopole antenna with an etched hole and a patch on the other side. The induced loop resonances on the edges of the patch provide improved impedance matching in the harvesting band. In particular, the 2 × 2 array is mounted without increasing the size of harvesting antenna by using the ground space of it. In order to combine the harvesting and MPT antennas without affecting each other, a duplexing network, which consists of a band stop stub and a high pass filter, is employed. The harvesting antenna has wide 6 dB bandwidth of 0.62–1.3 GHz and 1.58–3.62 GHz. The radiation efficiency of 77–99% was measured in the whole harvesting band. In addition, a 2 × 2 array has a peak gain of 10.18 dBi and radiation efficiency of 89% at 5.8 GHz and operates as a MPT receiving antenna. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:797–802, 2017