Spin-wave band-pass filters based on yttrium iron garnet films for tunable microwave photonic oscillators

[摘要] The paper reports on development of tunable band-pass microwave filters for microwave photonic generators. The filters were fabricated with the use of epitaxial yttrium iron garnet films. Principle of operation of the filters was based on excitation, propagation, and reception of spin waves. In order to obtain narrow pass band, the filtering properties of excitation and reception antennas were exploited. The filters demonstrated insertion losses of 2-3 dB, bandwidth of 25-35 MHz, and tuning range of up to 1.5 GHz in the range 3-7 GHz.

[发布机构] Department of Physical Electronics and Technology, Saint Petersburg Electrotechnical University LETI, Saint Petersburg; 197376, Russia^1

[效力级别] 天文学 [学科分类] 天文学(综合)

[关键词] Filtering properties;Microwave Photonics;Narrow pass bands;Reception antennas;Tunable microwave;Tuning ranges;Wavebands;Yttrium iron garnet films