Preparation and Application on Antenna of Soft Ferrite Core for Wireless Sensor Networks

Author

Li, L. ; Fang, Y.K. ; Liu, Y.J.

Author_Institution

State Key Lab. of Networking & Switching Technol., Beijing Univ. of Posts & Telecommun., Beijing, China

Volume

51

Issue

11

fYear

2015

Firstpage

1

Lastpage

3

Abstract

In this paper, soft magnetic Mn-Zn ferrite samples have been prepared through oxide processes. The magnetic properties and the phase structures were investigated. It was found that the optimal sintering temperature is about 1360 °C. The initial permeability of the samples is 1700-2300, Curie temperature T_c is about 140 °C-180 °C, and cutoff frequency f_r is about 1 MHz. Moreover, the initial permeability of the samples is relatively stable, and its temperature coefficient is ~10^-6/°C at the temperature range of 20 °C-60 °C. High-frequency simulation results show that the Mn-Zn ferrites samples are suitable for the application of the wireless sensor networks in theory.

Keywords

Curie temperature; ferrites; magnetic cores; magnetic permeability; manganese alloys; sintering; soft magnetic materials; wireless sensor networks; zinc alloys; Curie temperature; Mn-Zn; frequency 1 MHz; high-frequency simulation; optimal sintering temperatur; oxide process; permeability; phase structure; soft ferrite core antenna; soft magnetic Mn-Zn ferrite samples; temperature 140 degC to 180 degC; temperature 20 degC to 60 degC; temperature coefficient; wireless sensor network; Antennas; Ferrites; Permeability; Soft magnetic materials; Temperature; Temperature measurement; Wireless sensor networks; HFSS; High-frequency structural simulator (HFSS); Mn-Zn soft ferrites; Mn???Zn soft ferrites; permeability;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2015.2450220

Filename

7137640