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In recent years, research and development work have been done on surgical robots and navigation systems. Although these systems have potential to realize minimally invasive and precise surgery, it is considerably difficult to control these robots accurately because organ sometimes shows unanticipated behavior during operation. Therefore, the robot control system which can respond to the various change...
A novel Y-branch directional coupler modulator (YDCM) with high linearity based on domain-inverted modulation was fabricated and tested. A two-tone test was performed to demonstrate the improvement of linearity of four-domain YDCM over two-domain YDCM.
This paper presents a novel wide tuning range MEMS varactor based on a toggle push - pull mechanism for high RF power applications and improved reliability. The device anchoring utilizes a torsion spring mechanism which virtually allows for a full capacitance tuning range. Improved mechanical stability is also provided by the actively controlled pull-out implementation that is realized without increasing...
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