A Vanadium Dioxide-PMMA Composite For Microwave Radiation Switching.
Chempluschem
; 87(6): e202200107, 2022 Jun.
Article
en En
| MEDLINE
| ID: mdl-35705522
ABSTRACT
Reconfigurable radio-frequency components are in high demand for modern communication systems as they can be involved in multiband and multistandard electronic devices. The key part of such components is an active switching element. This work offers a way to obtain an efficient microwave switch using vanadium dioxide-poly (methyl methacrylate) composite. Differential scanning calorimetry, SQUID magnetometery, and impedance spectroscopy measurements were used to characterize the phase transition in the proposed composite. Temperature induced metal-insulator transition occurs at technologically attractive 341â
K. The transition leads to a change of microwave transmission trough VO2 -PMMA composite from -4.9â
dB for low-temperature monoclinic form to -5.8â
dB for high-temperature rutile form. This provides an ability to tune the material's transparency in the microwave range, while the shaping polymer matrix provides the proper mechanical processability of the switching element.
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1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Chempluschem
Año:
2022
Tipo del documento:
Article
País de afiliación:
Ucrania