Method and apparatus for multilayer frequency selective...

Details Method and apparatus for multilayer frequency selective... Method and apparatus for multilayer frequency selective...

2005-03-22

2005-03-22

Vannucci, James (Department: 2828)

Communications: radio wave antennas

Antennas

Slot type

C343S756000

Reexamination Certificate

active

06870511

ABSTRACT:
A method for designing a multiple layer frequency selective surface structure. An overall response for the structure is specified. The desired response may be modeled as a filter response. Parameters for each of the layers making up the structure that provide the overall response are determined based on the polarization modes between the layers being decoupled. To provide for decoupling, the individual layers are rotated with respect to each other. The overall response of the structure is then calculated and compared to the desired response. Adjustments are made in the parameters of each layer until the calculated response is equal or nearly equal to the desired response.

REFERENCES:
patent: 4477815 (1984-10-01), Brunner et al.
patent: 5434587 (1995-07-01), Hannan
patent: 5689276 (1997-11-01), Uematsu et al.
patent: 6396451 (2002-05-01), Wu et al.
Barlevy, A.S, et al., “On the Electrical and Numerical Properties of HighQResonances in Frequency Selective Surfaces,”Progress in Electromagentics Research, PIER, vol. 22, pp 1-27 (1999).

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