Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1984-01-20
1985-08-27
Nussbaum, Marvin L.
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333132, 333202, 333248, H01P 120, H01P 316, H01P 1213
Patent
active
045381232
ABSTRACT:
A millimeter wavelength bandpass filter arrangement is produced by using a first dielectric waveguide as an input for a broadband signal to a ferrite circulator. This signal is delivered to a second dielectric waveguide having a bandstop filter formed therein. The bandstop filter reflects the desired bandpass frequency(s) back to the ferrite circulator where it is delivered to a third dielectric waveguide which is the output for the bandpass frequency(s).
REFERENCES:
patent: 4415871 (1983-11-01), Stern et al.
patent: 4468673 (1984-08-01), Stern et al.
Ohm--"A Broad-Band Microwave Circulator", IRE Trans. on Microwave Theory Techniques, vol. MTT-4, No. 4, Oct. 1956; pp. 210-217.
Stern et al.--"Dielectric Waveguide Circulator", Conference: 6th International Conference on #Infrared and Millimeter Waves, Miami Beach, Fla., (Dec. 7-12, 1981); 2 pages.
Solbach--"Grating-Tuner in Dielectric Image Line for Integrated Millimeter Wave Circuits", Proc. of the 9th European Microwave Conference, Microwave 79, Brighton, England (Sep. 17-20, 1979); pp. 458-462.
T. Itoh, vol. 4, Infrared and Millimeter Waves, Academic Press, Inc. 1981, Chapter entitled "Dielectric Waveguide-Type Millimeter-Wave Integrated Circuits, pp. 149 and 245-248.
G. L. Matthaei et al., "Some Dielectric-Waveguide Filter Structures", 1983 IEEE MTT-S Digest; pp. 299-301.
R. A. Stern et al., U.S. patent application Ser. No. 310,542, filed 10/1/1981, Dielectric Waveguide Circulator.
R. W. Babbitt et al., U.S. patent application Ser. No. 409,201, filed 8/18/1982, Frequency Scan Antenna Utilizing Supported Dielectric Waveguide.
R. A. Stern et al., U.S. patent application Ser. No. 394,753, filed 7/2/1982, Supported Dielectric Waveguide Transmission Line and Components.
Babbitt Richard W.
Mariani Elio A.
Stern Richard A.
Lane Anthony T.
Maikis Robert A.
Murray Jeremiah G.
Nussbaum Marvin L.
The United States of America as represented by the Secretary of
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