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A novel Structure of a narrowband combline bandpass filter with two transmission zeros is introduced. It is composed of two different physical resonator structures which are the microstrip and the suspended substrate stripline on a single layer substrate. The simulated in-band insertion loss is low due to four high-Q stripline resonators, while the transmission zeros are implemented with two microstrip...
Miniature wideband bandpass filters are proposed using multilayer liquid crystal polymer (LCP) technology to cover the very low-frequency band of 0.5–2 GHz. To reduce the filter size at such low frequencies, lumped-element theory is used for the filter design and a value extraction process is developed to accurately get the capacitive or inductive values of different multilayer microstrip quasi-lumped...
In this study, a miniature, low-cost and high-performance highpass filter using multilayer liquid crystal polymer (LCP) is presented. High accuracy design process is demonstrated. The fabrication involves our newly developed laser-aided fabrication technique for multilayer LCP devices. Measured result is in good agreement with the simulation. The size of the filter structure is only 0.015λg×0.011λg×0...
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