Tunable high-frequency band-stop magnetic filters
Tunable high-frequency band-stop magnetic filters
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DOI：
10.1063/1.1625424
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发表时间：
2003-11
影响因子：
4
通讯作者：
B. Kuanr;Z. Celinski;R. Camley
中科院分区：
文献类型：
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作者：
B. Kuanr;Z. Celinski;R. Camley
我们目前的铁和坡莫合金™为基础的微带微波带阻滤波器的结果。这些结构，在GaAs衬底上制备，在尺寸和生长过程中与片上高频电子兼容。我们观察到坡莫合金的功率衰减为100 dB/cm，铁的功率衰减为180 dB/cm。插入损耗低：坡莫合金为2-3 dB，铁基结构为3-5 dB。我们的几何形状包括一个显着的提升，由于微带中的磁性元件的形状各向异性的零场工作频率。利用形状各向异性，我们创建了一个铁基滤波器，工作在11 GHz的零施加场。
We present results on Fe- and Permalloy™-based microstrip microwave band-stop filters. These structures, prepared on GaAs substrates, are compatible in size and growth process with on-chip high-frequency electronics. We observed power attenuation of 100 dB/cm for Permalloy and 180 dB/cm for Fe. The insertion loss is low: 2–3 dB for Permalloy and 3–5 dB for the Fe-based structures. Our geometry includes a significant boost to the zero-field operational frequency due to the shape anisotropy of the magnetic element in the microstrip. Using the shape anisotropy, we create a Fe-based filter that operates at 11 GHz with zero applied field.