Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1990-08-16
1991-08-27
Gensler, Paul
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
333 21R, 333230, 333251, 333252, H01J 2500, H01P 108, H01P 116
Patent
active
050436295
ABSTRACT:
Dielectric-filled longitudinal slots in the common wall of concentric circular and coaxial dielectric-lined waveguides allow microwave energy to be efficiently coupled therethrough. Such couplers are used with megawatt level gyrotrons for varied applications. One application provides a double seal waveguide vacuum window with low reflections over a wideband of frequencies. Another application provides an output coupler and window for quasi-optical gyrotrons. Still another application provides a waveguide mode converter for converting high order microwave modes, as are commonly found in waveguide cavities of high power gyrotrons, to lower-order modes suitable for low-loss transmission, such as the HE.sub.11 mode.
REFERENCES:
patent: 4523127 (1985-06-01), Moeller
patent: 4604551 (1986-08-01), Moeller
patent: 4668894 (1987-05-01), Barnett et al.
patent: 4897609 (1990-01-01), Mallavarpu
H. G. Unger, "Lined Waveguide", Bell System Tech. J., 41:745-768 (1962).
Carlin et al., "Normal Modes in Overmoded Dielectric-Lined Circular Waveguide", Bell System Tech. J., 52:453-486 (1973).
J. L. Doane, "Wave Conversion in Stratified Media with Hyperbolic-Tangent Nonuniformities", J. Appl. Phys., 45:2748 (1974).
Vlasov et al., "Transformation of a Whispering Gallery Mode, Propagating in a Circular Waveguide, into a Beam of Waves", Radio Engineering and Electronic Physics, 20:14-17 (1975).
R. B. Smith, "Analytic Solutions for Linearly Tapered Directional Couplers", J. Opt. Soc. Am. 66:882 (1976).
C. Dragone, "Reflection, Transmission, and Mode Conversion in a Corrugated Feed", Bell System Tech. J., 56:835-867 (1977).
C. Dragone, "High-Frequency Behavior of Waveguides with Finite Surface Impedances", Bell System Tech. J. 60:89-115 (1981).
J. L. Doane, "Mode Converters for Generating the HE.sub.11 (Gaussian-Like) Mode from TE.sub.01 in a Circular Waveguide", Int'l J. Electronics 6:573-585 (1982).
Moeller et al., "Electron Cyclotron Heating Experiments on the JFT-2 Tokamak Using an Inside Launch Antenna", Phys. Fluids, 25:1211 (1982).
C. P. Moeller, "Mode Converters used in the Doublet III ECH microwave system", Int'l J. Electronics, 53:587-593 (1982).
J. L. Doane, "Parabolic Tapers for Overmoded Waveguides", Int'l J. Infrared and Millimeter Waves, 5:737-751 (1984).
M. N. Afsar, "Dielectric Measurements of Millimeter-Wave Materials", IEEE Trans. Microwave Theory Tech., 32: 1598-1609 (1984).
M. Thumm, "Computer-Aided Analysis and Design of Corrugated TE.sub.11 to HE.sub.11 Mode Converters in Highly Overmoded Waveguides", Int'l Infrared and Millimeter Waves, 6:577-597 (1985).
J. L. Doane, "Propagation and Mode Coupling in Corrugated and Smooth-Wall Circular Waveguides", Chapter 5 in Infrared and Millimeter Waves, 13: K. J. Button, ed., Academic Press (1985).
Lee et al., "Normal Modes in an Overmoded Circular Waveguide Coated with Lossy Material", IEEE Trans. Microwave Theory Tech., 34:773-785 (1986).
R. O. Dendy, "Linear Mode Conversion and the Operator Theory of Wave Mechanics", Phys. Fluids, 31:298 (1988).
R. O. Dendy, "Resonant Interval Action Transfer Between Coupled Harmonic Oscillators", J. Math. Phys. (1988).
Thumm et al., "In-Waveguide TE01-to-Whispering Gallery Mode Conversion Using Periodic Wall Perturbations", Proc. 13th Int'l Conf. Infrared and Millimeter Waves, Hawaii, Dec. (1988).
Casey et al., "A Mode Converter for Whispering Gallery Mode Gyrotrons", Bull A.P.S. 34:2091 (1989).
C. F. Lewis, "Complex Coatings with CVD", Materials Engineering, 35-38 (1989).
Fliflet et al., "Design and Operating Characteristics of a CW Relevant Quasi-Optical Gyrotron with Variable Mirror Separation", NRL Memorandum Report 6459, Naval Research Laboratory, Jun. 26, 1989.
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