Wave transmission lines and networks – Long lines – Waveguide type
Patent
1996-10-03
1999-11-09
Lee, Benny T.
Wave transmission lines and networks
Long lines
Waveguide type
333248, 333249, H01P 316
Patent
active
059822554
ABSTRACT:
A dielectric waveguide has a dielectric member disposed between a pair of parallel conductor flat surfaces, such that a propagating region and a non-propagating region are formed. The spacing between the conductor flat surfaces in the non-propagating region is determined to be smaller than that in the propagating region. The above-mentioned spacings and the dielectric constant of the dielectric member are determined such that the cut-off frequency of the LSM.sub.01 mode propagating through the propagating region is lower than the cut-off frequency of the LSE.sub.01 mode and that electromagnetic waves of both the LSM.sub.01 mode and the LSE.sub.01 mode are cut-off in the non-propagating region, so that any transmission loss attributable to a mode conversion between the LSM.sub.01 mode and LSE.sub.01 mode occurring at, for example, a bend of the waveguide is eliminated so as to facilitate production of the waveguide having a desired bend angle and radius of curvature.
REFERENCES:
patent: 4463330 (1984-07-01), Yoneyama
patent: 5770989 (1998-06-01), Ishikawa et al.
Lanfen, Qi et al., "Development of Groove NRD Waveguide Circulator", The 3rd Asia-Pacific Microwave Conference Proceedings, pp. 11-14, Tokyo, 1990.
Ma, Zhewang et al., "Wave Leakage From Groove NRD Structures", IEEE Microwave and Guided Wave Letters, vol. 3, No. 6, pp. 170-172, Jun. 1993.
Miao, Jing-Feng, "Studies of NRD Waveguide in China", Progress in Electromagnetics Research Symposium, p. 203, Piers 1997.
Tong, C. E. et al, "Study of Groove Nonradiative Dielectric Waveguide", Electronic Letters, vol. 25, No. 14, pp. 934-936, Jul. 6, 1989.
Wu, Ke, "A Combined Efficient Approach for Analysis of Nonradiative Dielectric (NRD) Waveguide Components", IEEE Transactions on Microwave Theory and Techniques, vol. 42, No. 4, pp. 672-677, Apr. 1994.
Xiao, Li Ling et al., "Analysis of the Mono-Groove NRD Waveguide and Antenna", International Journal of Infrared and Millimeter Waves, pp. 361-370 (1988).
Yoneyama, Tsukasa et al., "Experiments on NRD-Guide at X-Band", The Bulletin of the Faculty of Engineering of Ryukyu University, pp. 111 and 119-122 (1986).
Zhang, Wen-Xun et al., "New Leaky-Wave Antenna for Millimetre Waves Constructed from Groove NRC Waveguide", Electronic Letters, vol. 23, No. 22, pp. 1191-1192, Oct. 22, 1987.
Zhongxiang, Shen et al., "Dispersion Characteristics of Groove Nonradiative Dielectric Waveguide with Anisotropic Substrate", The 3d Asia-Pacific Microwave Conference Proceedings, pp. 19-22, Tokyo, 1990.
Zhu, Lei et al., "The Bandwidth of Single-Mode Operation in Groove NRD Waveguide", International Journal of Infrared and Millimenter Waves, pp. 371-379 (1988).
Japanese Laid-Open Utility Model Application 59-183002, Dec. 6, 1984.
T. Yoneyama, "Millimeter-Wave Integrated Circuits Using Nonradiative Dielectric Waveguide", Electronics & Communications In Japan, Part II Electronics, vol. 74, No. 2, Feb. 1, 1991, pp. 20-28.
L.L. Xiao, et al., "Analysis of Groove NRD Waveguide Bend Using the Coupled-Mode Theory", International Journal of Infrared and Millimeter Waves, vol. 13, No. 7, pp. 971-980, Jul. 1992.
Nishida Hiroshi
Saitoh Atsushi
Tanizaki Toru
Lee Benny T.
Murata Manufacturing Co. Ltd.
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