Tunable bandstop resonators and filters are fabricated and measured. Lead strontium titanate (PST-Pb0.4Sr0.6(Ti1-x Mnx)O3) thin film on a high-resistivity Si substrate is used for an application of low loss tunable circuits at microwave frequency band. Parallel plated PST varactors tune resonators and 3-pole bandstop filters which resonate at the center frequency of 4.23 and 7.1 GHz and its maximum rejection is more than 13.8 dB at the stop band while the insertion loss at the pass band is less than 3 dB.
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机译：可调带阻谐振器和滤波器的制造和测量。钛酸锶锶（PST-Pb 0.4 Sr 0.6 （Ti 1-x Mn x ）O 3 ）高电阻率Si基板上的薄膜用于在微波频带上应用低损耗的可调电路。平行镀的PST变容二极管调谐谐振器和三极带阻滤波器，它们在4.23和7.1 GHz的中心频率处谐振，在阻带处其最大抑制大于13.8 dB，而在通带处的插入损耗小于3 dB。
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