Terahertz band-pass filter fabricated by multilayer ceramic technology
Terahertz band-pass filter fabricated by multilayer ceramic technology
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DOI：
10.1143/jjap.45.7499
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发表时间：
2006-09-01
期刊：
影响因子：
--
通讯作者：
Sakabe, Yukio
中科院分区：
文献类型：
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作者：
Matsumoto, Naolci;Nakagawa, Takuji;Sakabe, Yukio
采用多层陶瓷工艺制作了太赫兹(THz)带通滤波器。滤波器的设计是基于由三个谐振腔组成的干涉多层滤光片。在中心频率为0.15太赫兹时，该滤波器的插入损耗低至1.5分贝。通过改变腔的光学长度来改变通带的带宽。半高全宽(FWHM)的调谐范围从12.5%到6.9%。当改变腔的光学长度时，传输强度没有明显的变化。在约0.8太赫兹的频率下，滤波器插入损耗从1.5分贝增加到6分贝。讨论了陶瓷材料的介电损耗对滤光片插入损耗的影响。
We fabricated a terahertz (THz) band-pass filter using multilayer ceramic technology. The filter design is based on an interference multilayer filter composed of three resonant cavities. The filter exhibited insertion loss as low as 1.5 dB at a center frequency of 0.15 THz. The bandwidth of the passband was modified by changing the optical length of the cavity. A demonstrated tuning of the full width at half maximum (FWHM) ranged from 12.5 to 6.9%. No significant change in transmission intensity was observed when the optical length of the cavity was changed. At a frequency of approximately 0.8 THz, filter insertion loss increased from 1.5 to 6 dB. The influence of dielectric losses of the ceramic materials on the filter insertion loss is also discussed.