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Impact of a half‐space interface on the wireless link between tiny sensor nodes
Author(s) -
Penkin Dmitriy,
Janssen Gerard,
Yarovoy Alexander
Publication year - 2014
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1002/2013rs005365
Subject(s) - wireless , link budget , transmission (telecommunications) , electrical impedance , wireless sensor network , link (geometry) , energy harvesting , power (physics) , computer science , energy (signal processing) , interface (matter) , channel (broadcasting) , electrical engineering , acoustics , physics , topology (electrical circuits) , telecommunications , computer network , engineering , bubble , maximum bubble pressure method , parallel computing , quantum mechanics
The power budget of a wireless link between two electrically small sensor nodes located close to an interface between two media is studied. The model includes both the propagation channel losses and input impedance of the radio frequency antennas. It is shown that a highly inductive half‐space significantly enhances the received power due to the contribution of the surface wave while not resulting in considerable mismatch losses between the antennas and electronics. Hence, such a half‐space improves the link gain, which may compensate the limited energy available for transmission from electrically and physically small nodes.