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This work addresses center frequency and bandwidth tunable filter for implementation in RF base-station front-ends. The filter is fabricated using functional thick-film layers of Barium-Strontium-Titanate (BST). The deposition of BST layers is performed locally in a screen printing process. The fabricated varactors have a Q-factor around 40 at 1 GHz, a tunability larger than 50% and a measured IP3...
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