Implementation of a second-order frequency selective surface filter at mmWave using paper and silver ink

In this work, fabrication of frequency selective surface filters by coating paper with sil- ver ink and subsequent laser etching the frequency filter pattern has been investigated. Three filter structures consisting of a combination of square and ring patches operating at 102, 113, and 126 GHz and with corresponding signal attenuation of −15.2, −15.4, and −14.5 dB were fabricated and simulated; −5 dB bandwidths were following, 93.3–112.2 GHz, 101.9–121.1 GHz, and 112.7–132.3, respectively. Also, the proposed screen printing with assistive laser etching could be used to reduce the number of used screens. Further- more, paper based fabrication using a biodegradable ink could be an alternative fabrication process in future electronic manufacturing.