Research & Developments for Millimeter-Wave Dielectric Forsterite with Low Dielectric Constant, High Q, and Zero Temperature Coefficient of Resonant Frequency

Tsutomu Tsunooka; Minato Ando; Sadahiko Suzuki; Yoshitoyo Yasufuku; Hitoshi Ohsato

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Research & Developments for Millimeter-Wave Dielectric Forsterite with Low Dielectric Constant, High Q, and Zero Temperature Coefficient of Resonant Frequency

机译：低介电常数，高Q值和零温度谐振频率的毫米波介电镁橄榄石的研究与开发

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Forsterite Mg_2SiO_4 is a candidate for millimeter-wave dielectrics because of its high Q and low dielectric constant e,. Commercial forsterite has been improved with a high Q of 240,000GHz using high-purity and fine raw materials, and the temperature coefficient of resonant frequency (TCf) can also be adjusted to near-zero ppm/℃ by adding 24wt% rutile compared with that in a previous study. In this study, the TCf, TCe, and e_r of forsterite ceramics with rutile added are studied for the tuning conditions. Zero ppm/℃ TCf of the forsterite with 30 and 25 wt % rutile added was achieved at 1200℃ for 2.5 and 2.25 h, respectively. The e, values of the near-zero TCf forsterite with 30 and 25wt% rutile added are 11.3 and 10.2, respectively.

机译：镁橄榄石Mg_2SiO_4由于其高Q和低介电常数e，而成为毫米波电介质的候选者。商用镁橄榄石使用高纯度和优质原料以高达240,000GHz的高Q值得到了改善，与之相比，通过添加24wt％的金红石，谐振频率的温度系数（TCf）也可以调节至接近零ppm /℃。在以前的研究中。在这项研究中，研究了添加金红石型镁橄榄石陶瓷的TCf，TCe和e_r的调谐条件。在1200℃下分别添加2.5重量％和2.25小时的镁橄榄石，分别添加了30％和25重量％的金红石，其TCf为零ppm /℃。添加了30％和25wt％的金红石的接近零的TCf镁橄榄石的e，值分别为11.3和10.2。

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《Japanese journal of applied physics》 |2013年第9issue2期|09KH02.1-09KH02.4|共4页
作者
Tsutomu Tsunooka; Minato Ando; Sadahiko Suzuki; Yoshitoyo Yasufuku; Hitoshi Ohsato;
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Incubation Center, Nagoya Institute of Technology, Nagoya 466-8555, Japan;

Incubation Center, Nagoya Institute of Technology, Nagoya 466-8555, Japan;

Marusu-Glaze Co., Ltd, Seto, Aichi 489-0032, Japan;

Yasufuku Ceramics Co., Ltd., Okazaki, Aichi 444-0838, Japan;

Incubation Center, Nagoya Institute of Technology, Nagoya 466-8555, Japan,Department of Research, Nagoya Industrial Science Research Institute, Nagoya 464-0819, Japan;

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Research & Developments for Millimeter-Wave Dielectric Forsterite with Low Dielectric Constant, High Q, and Zero Temperature Coefficient of Resonant Frequency

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