Varactor-tuned microstrip bandpass filte
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Jeongpyo Kim; Jaehoon Choi
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Article
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2008
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John Wiley and Sons
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English
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## Abstract In this study, a tunable bandpass filter with a hairpin line resonator and loading capacitors using varactor diodes was proposed. The filter was modified by adding varactor diodes to the coupling part to compensate for losses. The designed filter had a simple structure and the character