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Design of a very high frequency stretchable inverted conical helical antenna for maritime search and rescue applications
Author(s) -
Kang Eunjung,
Min William,
Choo Hosung,
Park JongEon
Publication year - 2020
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.32004
Subject(s) - conical surface , helical antenna , antenna (radio) , optics , reflection coefficient , wavelength , monopole antenna , acoustics , physics , power (physics) , engineering , electrical engineering , periscope antenna , mechanical engineering , quantum mechanics
Abstract The design of a stretchable inverted conical helical antenna (SICHA) applicable to maritime search and rescue is proposed, and the gain and the reflection coefficient are obtained at a resonant frequency of 156 MHz. The optimized top and bottom diameters of the SICHA are 36 and 18 mm, respectively, and its height is 115 mm, which is much shorter than a quarter‐wavelength monopole. Finally, we simulate the outdoor propagation of electromagnetic waves with the SICHA; both the simulated and measured received power intensities are similarly reduced as the distance between the two antennas increases.