Accession Number:

ADD010612

Title:

Evanescent Resonator Frequency Multiplier.

Descriptive Note:

Patent Application,

Corporate Author:

DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s):

Report Date:

1983-11-03

Pagination or Media Count:

66.0

Abstract:

This invention relates to a frequency multiplier for electromagnetic waves in which multiples of the input frequency propagate, while the input frequency evaneces. A rectangular waveguide or other suitable wave conveying element with a cut-off frequency above the input frequency but below the output frequency contains the multiplying 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 multipactor 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. Author

Subject Categories:

  • Electrical and Electronic Equipment
  • Cybernetics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE