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Liquid‐metal‐disk‐loaded monopole antenna based on 3D printed technique
Author(s) -
Wu Zhao,
Liang JiaJun,
Huang GuanLong,
Feng LinPing
Publication year - 2021
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22359
Subject(s) - monopole antenna , materials science , antenna (radio) , liquid metal , coaxial antenna , shell (structure) , flange , dielectric , electrical engineering , optoelectronics , dipole antenna , composite material , engineering
A 3D printed disk‐loaded monopole antenna by injecting liquid metal alloy is designed. The monopole antenna is operating at 2.4 GHz for wireless sensor network applications. The proposed antenna mainly comprises three parts: a hollow dielectric shell, liquid metal alloy, and a feeder. The hollow dielectric shell is fabricated by 3D printing technique. Liquid metal alloy EGaIn is filled in the hollow dielectric shell to form the antenna radiator. An SMA connector with square flange is inserted into the hollow dielectric shell to feed the antenna. A prototype antenna is fabricated and experimentally measured for verification. Measured results show that the frequency of the designed antenna covers from 2.36 to 2.6 GHz, which is suitable for commercial 2.4 GHz wireless communication applications.