Рубрики:
FERROMAGNETIC-RESONANCE
COMPACT
SPECTROMETER
FERRITE
FILMS
LINE
Кл.слова (ненормированные):
Ferrite -- microstrip structure -- microwave -- tunable phase shifter
FERROMAGNETIC-RESONANCE
COMPACT
SPECTROMETER
FERRITE
FILMS
LINE
Кл.слова (ненормированные):
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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Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660074, Russia.
Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Lemberg, K. V.; Serzhantov, Alexey M.; Leksikov, Al. A.; Лексиков, Александр Александрович; Bal'va, Y. F.; Бальва, Ярослав Федорович; Leksikov, An. A.; Лексиков, Андрей Александрович; Ministry of Education and Science of the Russian Federation [3.528.2014K]