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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Lemberg K. V., Serzhantov, Alexey M., Leksikov Al. A., Bal'va Y. F., Leksikov An. A.
Заглавие : Magnetically tunable resonant phase shifters for UHF band
Коллективы :
Ministry of Education and Science of the Russian Federation [3.528.2014K]
Место публикации : IEEE Trans. Magn.: IEEE-Institute Electrical and Electronics Engineers, 2015. - Vol. 51, Is. 6. - Ст.4003205. - ISSN 0018, DOI 10.1109/TMAG.2014.2368513. - ISSN 19410069(eISSN)
Примечания : Cited References:22. - This work was supported by the Ministry of Education and Science of the Russian Federation, task no. 3.528.2014K.
Предметные рубрики: FERROMAGNETIC-RESONANCE
COMPACT
SPECTROMETER
FERRITE
FILMS
LINE
Ключевые слова (''Своб.индексиров.''): ferrite--microstrip structure--microwave--tunable phase shifter
Аннотация: This paper presents a new type of magnetically tunable phase shifter. The shifter has the structure of microstrip bandpass filter on a substrate containing magnetic material whose magnetic permeability is controlled by magnetic field due to ferromagnetic resonance. The phase shifter's operation is based on the fact that phase shift in a bandpass filter changes with tuning of its central frequency. Two types of devices were designed and fabricated for the UHF band. One of them has a five-layer NiFe film as an active medium and demonstrates a figure of merit of 40°/dB achieved already at 20 Oe of the controlling magnetic field in 10% of the relative operational bandwidth. The second device with YIG ferrite as an active medium gave 360° tunable phase shift in 5% operational bandwidth that corresponds to the figure of merit of 150°/dB (3.1°/dB·Oe).
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