Abstract
AbstractThis work presents the measurement of the permittivities of water and methanol in the D-band. Water is a reference medium for dielectric measurement. The dielectric permittivity of water in the millimeter wave range is a fundamental parameter in many applications, and needs to be investigated systematically. The measurement is conducted using a quasi-optical spectroscopy, which is an improved free-space method more suitable for the millimeter wave range. The theoretical formulae are derived using the signal-flow chart method, which is developed specially for multi-layer operation. This model enables one measure liquid samples. A non-calibration method has been developed to retrieve the permittivity. Water and methanol are measured at several temperatures. The measured results agree with published results in a 4% discrepancy. This work will add new measured data to the permittivities of water and methanol over the whole D-band.
Funder
National Natural Science Foundation of China
Publisher
Springer Science and Business Media LLC
Reference27 articles.
1. Yeap, K. H. & Tham, C. Y. Optimization of an Offset Receiver Optics for Radio Telescopes. J. Infrared. Milli. Terahz. Waves 39, 64–76 (2018).
2. Poojali, J. et al. Quad-Band Polarization-Insensitive Millimeter-Wave Frequency Selective Surface for Remote Sensing. IEEE Antenna. Wirel. Pr. 16, 1796–1799 (2017).
3. Marchetti, E. et al. Radar cross-section of pedestrians in the low-THz band. IET Radar Sonar Navig. 12, 1104–1113 (2018).
4. Wang, Z. B. et al. All-dielectric frequency selective surface design based on dielectric resonator. Chin. Phys. B 25, 068101 (2016).
5. Shen, G. C. et al. The low-temperature sintering and microwave dielectric properties of (Zn0.7Mg0.3)TiO3 ceramics with H3BO3. Chin. Phys. B 22, 087801 (2013).
Cited by
9 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献