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This paper presents a third-order digital tunable bandpass filter based on digitally tunable capacitor loaded open ring resonator. Magnetic dominated mixed coupling is utilized to make the coupling coefficient meet the requirement of stable bandwidth response. Electric source-load coupling is designed to generate a transmission zero for improving the frequency selectivity. This filter is designed,...
In this paper, a novel analogue tunable bandpass filter with constant absolute bandwidth is presented. The filter is designed based on full wavelength microstrip open ring resonators loaded with varactors. Magnetic dominated mixed coupling is designed to make the coupling coefficient meet the requirement of constant absolute bandwidth response. The filter is designed, fabricated and measured. The...
The work presented in this paper focuses on the system identification of a 2-DOF flexure-based mechanism, designed for micro/nano scale positioning and manipulation. In the presented compliant mechanism, the cross axis coupling ratio is below 1% indicating excellent decoupling performance. The system identification procedure, experimental design, data collection, data analysis, and validation of the...
The work presented in this paper focuses on the design of a novel flexure-based mechanism capable of delivering planar motion with three degrees of freedom (3-DOF). Pseudo rigid body modeling (PRBM) and kinematic analysis of the mechanism are used to predict the motion of the mechanism in the X-, Y- and θ-directions. Lever based amplification is used to enhance the displacement of the mechanism. The...
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