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Effect of ferrite substrates on antenna miniaturization

Title
Effect of ferrite substrates on antenna miniaturization
Author
김종렬
Keywords
Ferrite; Antenna; Radiationeffects
Issue Date
2008-01
Publisher
KOREAN PHYSICAL SOC
Citation
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v. 52, No. 1, Page. 127-131
Abstract
This study has been carried out to estimate the effect of electro-magnetic properties of soft magnetic ferrites on the performance and miniaturization of antennas operating in the ultra high frequency (UHF) range. Compared with dielectric materials, ferrites used as substrates effectively reduce the resonance frequency of tapered slot antennas without noticeable reduction of bandwidth and gain. For example, a NiZn ferrite antenna with a size of 40 mm imes 10 mm imes 2.4 mm showed an antenna gain of --7.9 to --3.04 dBi in the frequency range of 450 -- 700 MHz. Hence, these data suggest that magnetic antennas are applicable to terrestrial, digital, multimedia broadcasting (T-DMB) and digital, video broadcasting, handheld (DVB-H) phones.
URI
http://www.jkps.or.kr/journal/view.html?volume=52&number=1&spage=127&year=2008http://repository.hanyang.ac.kr/handle/20.500.11754/76676
ISSN
0374-4884
DOI
10.3938/jkps.52.127
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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