Kryshtal R.G., Kundin A.P., Medved* A.V. A Microwave Nonreciprocal Notch Filter Tunable by a Surface Acoustic Wave in Dynamic Magnonic Crystals. Instruments and Experimental Technigues , 2019 , 62 (1). С. 42-46. ISSN 0020-4412
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The results of using a dynamic magnonic crystal, which is created by a surface acoustic wave (SAW) in the structure of a film of yttrium iron garnet on a gallium gadolinium garnet substrate, for the development of a tunable nonreciprocal microwave filter are presented. A filter prototype that operates in the range of 3600-4200 MHz at a magnetic bias field of 640 Oe was developed and its main characteristics were measured. At a SAW frequency of 41 MHz and a power of 30 mW, the rejection depth was 23 dB. A SAW-frequency change by 1 MHz shifted the rejection frequency by ~ 7MHz. The inversion of the signal- propagation direction in the device resulted in a shift of the rejection freguency by the value of the SAW freguency. The possibilities of the further improvement of the parameters of this device are discussed.
| Тип объекта: | Статья |
|---|---|
| Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: | Крышталь Р.Г. Кундин А.П. Медведь А.В. |
| Подразделения (можно выбрать несколько, удерживая Ctrl): | 256 лаб. акустомагнитных явлений |
| URI: | http://cplire.ru:8080/id/eprint/7343 |
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