• Title/Summary/Keyword: Composite magneto-dielectric material

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A Small Composite Right/Left-Handed Transmission Line Metamaterial Antenna Using a Magneto-Dielectric Material (Magneto-Dielectric Material을 이용한 소형 Composite Right/Left-Handed Transmission Line Metamaterial 안테나)

  • Jang, Kyung-Duk;Kim, Jae-Hee;Kim, Gi-Ho;Seong, Won-Mo;Park, Wee-Sang
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.19 no.2
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    • pp.223-230
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    • 2008
  • A CRLH-TL based compact metamaterial antenna on a magneto-dielectric material is proposed. The proposed antenna is composed of two patches and vias, which is loaded by a magneto-dielectric material constructed by SRRs. The characteristic of SRRs is studied, and the size reduction of the antenna by using the magneto-dielectric material is confirmed. The simulated resonant frequency of the antenna has showed a decrease of 7.13 % at - 1st-order resonant mode, and 23.9 % at zeroth-order resonant mode. A zeroth-order resonant antenna is fabricated and measured, which has a resonant frequency of 1.888 GHz, a bandwidth of 0.48 %, a gain of 0.534 dBi, and an efficiency of 51.7 %.

An Aircraft CLAS Antenna Design using Composite Magneto-dielectric Material (복합자성유전체를 이용한 항공기 CLAS 안테나 개발)

  • Kim, Yo-Sik;Bae, Ki-Hyoung;Yu, Byung-Gil;Kim, Min-Sung;Park, Chan-Yik
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.41 no.10
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    • pp.820-826
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    • 2013
  • In this paper, a compact and wideband CLAS(Conformal Load bearing Antenna Structure) was studied using smart skin technique. In order to satisfy the electrical performance of the CLAS antenna, the proposed CLAS antenna is composed of conductive mesh, face-sheet, radiator, honeycomb, housing. Especially, radiator is composed of composite magneto-dielectric material and radiating element etched on the PCB (Printed Circuit Board). The radiating element is inserted into the composite magneto-dielectric material and has sloted Folded LP(Log Periodic) structure. By fabricated composite magneto-dielectric, the resonance frequency is decreased and the impedance matching characteristics is improved. We verified that the antenna has wideband characteristics and compact size using the antenna test results.

A Design of a Meander Antenna using Magneto-dielectric Material for 433.92 MHz band (433-92 MHz대 Magneto-dielectric 매질을 이용한 미앤더 안테나의 설계)

  • Tran, Viet Hong;Park, Chul-Keun;Min, Kyeong-Sik
    • Proceedings of the Korea Electromagnetic Engineering Society Conference
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    • 2005.11a
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    • pp.323-328
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    • 2005
  • The paper describes a meander antenna using magneto-dielectric composite for 433.92 MHz band. The antenna with magneto-dielectric material in this paper is suggested for miniaturization of antenna size. The return loss of meander antenna is achieved by optimizing the permittivity, $\varepsilon_r$=1.71-j0.004 and permeability, $\mu_r$=2.39+j2.58. Over all dimension of the antenna is $51\times11\times1.6mm$. The return loss and gain are -41 dB, -5dBi, respectively at 433.92 MHz.

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