Complex Permittivity Measurements of a PTFE Substrate in W Band by the Cut-off Circular Waveguide Method

摘要：

The complex permittivity measurements of a PTFE in the direction tangential to a plate are performed to investigate accuracy of a cut-off circular waveguide method in W band by using four resonators. Moreover, the novel 100GHz grooved circular empty cavities and newly developed excitation cable are introduced. The fabrication deviation of these cavities is extremely small and the high relative conductivity over 90％ is achieved. As a result, the PTFE has relative permittivity εr of 2.05±0.01 and low loss tangent tanδ of (2.7 ±0.2)×10-4 around 84GHz. And also, the measurement precision of the method in W band is 0.6％ for the relative permittivity εr ≌ 2 and 5％ for the loss tangent tanδ ≌ 10-4.

作者: Takashi Shimizu Yuki Kawahara Seizo Akasaka YoshinoriKogami

作者单位: Graduated School of Engineering, Utsunomiya University 7-1-2 Yoto, Utsunomiya Tochigi 321-8585, Japa Kawashima Manufacturing Co., Ltd.1-3-5 Higashiikuta, Tama-ku, Kawasaki 214-0031, Japan

会议类型: 国际会议

会议名称: 2011 China-Japan Joint Microwave Conference(2011年中日微波会议CJMW 2011)

会议地点: 杭州

会议语种:英文

页码: 501-504

在线出版日期: 2011-04-20（万方平台首次上网日期，不代表论文的发表时间）