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This custom by RF Cafe is a montage of Smith Charts with forbidden regions and associated L-C networks, with conversions between return loss, reflection coefficient, and VSWR.
Liven up any room or party with our fun, hip tile coasters, measuring 4.25" x 4.25" and 1/6-inch thick. Images are applied with a polyester resin that accepts dye as part of the coating. Four felt pads protect your furniture from scratches. Dishwasher safe. Not for use with abrasive cups and mugs.