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Room‐temperature‐densified Li 2 MoO 4 ceramic patch antenna and the effect of humidity
Author(s) -
Kähäri Hanna,
Ramachandran Prasadh,
Juuti Jari,
Jantunen Heli
Publication year - 2016
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12615
Subject(s) - materials science , ceramic , antenna (radio) , humidity , composite material , silicone , patch antenna , coating , relative humidity , conformal coating , mold , optoelectronics , electrical engineering , meteorology , physics , engineering
A patch antenna was realized utilizing a Li 2 MoO 4 disk fabricated by a room‐temperature densification method, where the densification takes place during pressing. Therefore, the size of the ceramic can easily be managed by controlling the mold dimensions, making this method advantageous for patch antenna design. The antenna showed reasonably good performance. A relative humidity of 80% lowered the resonant frequency and reduced the efficiency of the antenna. Use of a conformal coating reduced the changes and speeded up their reversibility. The results show that the room‐temperature densified Li 2 MoO 4 ceramics are feasible for use under high humidity with a silicone coating.