An article comprising: a substrate (12, 14) having a major surface, a coating over a portion of the major surface to block out at least one predetermined wavelength of an electromagnetic spectrum and a communication window formed in a portion of the coating being outlined by an imaginary boundary or aperture, with a frequency selective surface pattern (34, 49, 70, 80) within the aperture, the pattern of the frequency selective surface being defined by arrangement of a first plurality of areas that pass the at least one predetermined wavelength of the electromagnetic spectrum, defined as passing areas and a first plurality of areas that block out the at least one predetermined wavelength of the electromagnetic spectrum, defined as blocking areas wherein the frequency selective surface pattern comprises: a first plurality of spaced arcuate break lines (42, 44, 50, 52), each break line having a plurality of passing areas with blocking areas there between and having a different curvature than another one of the break lines, the break lines nested within one another with the break line having the largest curvature as the outermost break line of the plurality of break lines and the break line having the smallest curvature as the innermost break line (45, 51) of the plurality of arcuate break lines, wherein the plurality of break lines are arranged by decreasing curvature in a direction away from the outermost break line toward the innermost break line (45, 51); and an area between adjacent arcuate break lines of the plurality of arcuate break lines forming a blocking area, wherein said passing areas are formed by voids in the coating and said blocking areas of the communication window are formed by the coating. a substrate (12, 14) having a major surface, a coating over a portion of the major surface to block out at least one predetermined wavelength of an electromagnetic spectrum and a communication window formed in a portion of the coating being outlined by an imaginary boundary or aperture, with a frequency selective surface pattern (34, 49, 70, 80) within the aperture, the pattern of the frequency selective surface being defined by arrangement of a first plurality of areas that pass the at least one predetermined wavelength of the electromagnetic spectrum, defined as passing areas and a first plurality of areas that block out the at least one predetermined wavelength of the electromagnetic spectrum, defined as blocking areas wherein the frequency selective surface pattern comprises: a first plurality of spaced arcuate break lines (42, 44, 50, 52), each break line having a plurality of passing areas with blocking areas there between and having a different curvature than another one of the break lines, the break lines nested within one another with the break line having the largest curvature as the outermost break line of the plurality of break lines and the break line having the smallest curvature as the innermost break line (45, 51) of the plurality of arcuate break lines, wherein the plurality of break lines are arranged by decreasing curvature in a direction away from the outermost break line toward the innermost break line (45, 51); and an area between adjacent arcuate break lines of the plurality of arcuate break lines forming a blocking area, wherein said passing areas are formed by voids in the coating and said blocking areas of the communication window are formed by the coating. a first plurality of spaced arcuate break lines (42, 44, 50, 52), each break line having a plurality of passing areas with blocking areas there between and having a different curvature than another one of the break lines, the break lines nested within one another with the break line having the largest curvature as the outermost break line of the plurality of break lines and the break line having the smallest curvature as the innermost break line (45, 51) of the plurality of arcuate break lines, wherein the plurality of break lines are arranged by decreasing curvature in a direction away from the outermost break line toward the innermost break line (45, 51); and an area between adjacent arcuate break lines of the plurality of arcuate break lines forming a blocking area, wherein said passing areas are formed by voids in the coating and said blocking areas of the communication window are formed by the coating.