H - Electricity – 01 – P
Patent
H - Electricity
01
P
333/20
H01P 1/20 (2006.01) H01P 1/219 (2006.01) H03B 19/03 (2006.01)
Patent
CA 1212430
ABSTRACT OF THE DISCLOSURE A frequency multiplier for electromagnetic waves in which multiples of the input frequency propagate, while the in- put frequency evanesces. A rectangular waveguide or other suit- able wave conveying element with a cut-off frequency above the input frequency but below the output frequency contains the mul- tiplying structure. The input frequency is multiplied using a post located in the waveguide or other element adjacent to the source of input waves. The post may define a multiplier gap between one of its surfaces and a wall of the waveguide or other element, in which case the multiplier gap may contain a multi- pactor between its surfaces which generates multiples of the input frequency. The multiplier gap may alternatively contain a non-linear element responsive to a high electric field, such as a ferroelectric material, which also generates multiples of the input frequency. Alternatively, the post may be surrounded by a non-linear element of ferromagnetic material responsive to a strong magnetic field. In either embodiment, waves at the same frequency as the input waves cannot propagate, but waves above the cut-off frequency propagate through the waveguide or other element to an output aperture.
463419
Aspila Kalevi P.
Government Of The United States As Represented By The Secretary
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