Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1981-04-27
1987-05-26
Chatmon, Saxfield
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
333 21R, 333251, 333252, 315 5, 315 552, H01J 2500
Patent
active
046688943
ABSTRACT:
A coupler employing two similar sections of waveguide which extend coliney in longitudinal succession. Adjacent ends of the guide sections are spaced apart to form a gap in the boundary of the sections. A third section of waveguide is disposed external to and coaxial with at least a part of each of the two waveguide sections to provide a boundary surrounding the gap. Electromagnetic energy propagating down one of the two similar sections of waveguide in a first mode and entering the gap is converted partly to a plurality of other modes. The converted energy is reconverted to the first mode upon reaching the other of the two similar sections of waveguide. The electric field pattern exciting the section of waveguide at the end of the gap and propagating down it is exclusively in the first mode. The cutoff-determining dimensions of the third section of waveguide and the gap separation are determined from the condition that the phase relationships between the modes at the end of the gap be the same, to within an integral multiple of 2.pi., as what they were at the beginning of the gap, to insure complete transfer of power between the two similar sections of waveguide.
REFERENCES:
patent: 2180950 (1939-11-01), Bowen
patent: 2485031 (1949-10-01), Bradley
patent: 2958834 (1960-11-01), Symons et al.
patent: 2963663 (1960-12-01), Marcatili
patent: 3315188 (1967-04-01), Scott
patent: 3753171 (1973-08-01), Butwell
patent: 4224576 (1980-09-01), Granatstein et al.
Baird J. Mark
Barnett Larry R.
Chatmon Saxfield
Forrest John L.
Klein Alan P.
The United States of America as represented by the Secretary of
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