Microwave absorption properties of conducting polymer composite with barium ferrite nanoparticles in 12.4-18 GHz

被引：177

作者：

Ohlan, Anil ^{[1
]}

Singh, Kuldeep ^{[1
]}

Chandra, Amita ^{[2
]}

Dhawan, S. K. ^{[1
]}

机构：

[1] Natl Phys Lab, Polymer & Soft Mat Sect, New Delhi 110012, India

[2] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 05期

关键词：

D O I：

10.1063/1.2969400

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Conducting polymer nanocomposites of polyphenyl amine with barium ferrite nanoparticles (50-70 nm) have been synthesized via emulsion polymerization. The complex permittivity, permeability, and microwave absorption properties of the composite were studied in the 12.4-18 GHz (Ku band) frequency range. The composite has shown high shielding effectiveness due to absorption (SEA) of 28.9 dB (similar to 99.9%), which strongly depends on dielectric loss, magnetic permeability, and volume fraction of barium ferrite nanoparticles. The high value of SEA suggests that these composites can be used as a promising radar absorbing materials.

引用

页数：3

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