Characterization of M-type barium hexagonal ferrite-based wide band microwave absorber

被引：305

作者：

Meshram, MR ^{[1
]}

Agrawal, NK

Sinha, B

Misra, PS

机构：

[1] Indian Inst Technol, Dept Elect & Comp Engn, Roorkee, Uttar Pradesh, India

[2] Indian Inst Technol, Dept Met & Mat, Roorkee, Uttar Pradesh, India

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 271卷 / 2-3期

关键词：

hexagonal ferrite; radar cross-section; microwave absorbing paint;

D O I：

10.1016/j.jmmm.2003.09.045

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper present the design, development and characterization of the hexagonal ferrite powder [BaCo0.58Ti0.5deltaMn0.1Fe(11.87-delta)O-19] and [Ba(MnTi)(delta)Fe(12-2delta)O19] at delta=1.6 as a microwave absorber. The hexagonal ferrite powder has been developed by dry attrition and sintering procedure. The developed ferrite powder 60% by weight has been mixed in epoxy resin to form a microwave-absorbing paint. This paint was coated on a conducting aluminum sheet to study the absorption characteristics of a linearly polarized TE wave at X band. The results for single- and two-layer microwave absorbers for different coating thicknesses have been reported. It has been found that it shows the broadband characteristics with minimum absorption of 8 dB from 8 to 12 GHz for a coating thickness of 2 mm. These paints are very useful in military applications Such as RCS reduction, camouflaging of the target and prevention of EMI, etc. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：207 / 214

页数：8

共 10 条

[1]

Amin M. B., 1981, Radio and Electronic Engineer, V51, P209, DOI 10.1049/ree.1981.0032

[2] Sensitivity analysis of Jaumann absorbers [J].

Charles, A ;

Towers, MS ;

McCowen, A .

IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION, 1999, 146 (04) :257-262

[3] M-hexaferrites with planar magnetic anisotropy and their application to high-frequency microwave absorbers [J].

Cho, HS ;

Kim, SS .

IEEE TRANSACTIONS ON MAGNETICS, 1999, 35 (05) :3151-3153

[4]

Meshram M. R., 2002, Indian Journal of Radio & Space Physics, V31, P225

[5]

Meshram M. R., 2002, IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313), P790, DOI 10.1109/APS.2002.1016765

[6] Empirical relationship between δ and ferromagnetic resonance frequency in hexagonal ferrite-based microwave absorbing paint [J].

Meshram, MR ;

Agrawal, NK ;

Sinha, B ;

Misra, PS .

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2003, 36 (05) :352-355

[7] Development and characterization of hexagonal ferrite based microwave absorbing paints at Ku-band [J].

Meshram, MR ;

Agrawal, NK ;

Sinha, B ;

Misra, PS .

IETE JOURNAL OF RESEARCH, 2001, 47 (05) :259-264

[8] Complex permeability of polycrystalline hexagonal ferrites [J].

Nakamura, T ;

Hatakeyama, K .

IEEE TRANSACTIONS ON MAGNETICS, 2000, 36 (05) :3415-3417

[9] M-type ferrite composite as a microwave absorber with wide bandwidth in the GHz range [J].

Sugimoto, S ;

Kondo, S ;

Okayama, K ;

Nakamura, H ;

Book, D ;

Kagotani, T ;

Homma, M ;

Ota, H ;

Kimura, M ;

Sato, R .

IEEE TRANSACTIONS ON MAGNETICS, 1999, 35 (05) :3154-3156

[10]

VANAULOCK WH, 1965, HDB MCIROWAVE FERRIT

← 1 →