Browsing by Author "Chen, YR"

Now showing 1 - 2 of 2

A novel fully CMOS process compatible PREM for SOC applications
(2005-03-01)
Yeh, CC
;
Wang, TH
;
Tsai, WJ
;
Lu, TC
;
Liao, YY
A novel nonvolatile memory cell named programmable resistor with eraseless memory (PREM) is proposed for system on chip applications for the first time. PREM combines a novel "eraseless" algorithm and the progressive breakdown of an ultrathin oxide. No or one extra mask is needed with a standard CMOS process. Multitime programming, multilevel cell, nonvolatility, and low-voltage operation are realized. Good reliability is demonstrated based on the result of a single cell.
Miniaturized microstrip cross-coupled filters using quarter-wave or quasi-quarter-wave resonators
(2003-01-01)
Chen, CC
;
Chen, YR
;
Chang, CY
;
電信工程研究所
;
Institute of Communications Engineering
Miniaturized microstrip filters using quarter-wave or quasi-quarter-wave resonators with cross-coupling are presented. The quarter-wavelength resonators enable very compact positively or negatively cross-coupled filters to be realized. The combination of quarter-wave and quasi-quarter-wave resonators facilitates the cross-coupling with a proper coupling phase. A new explanation for the coupling phase between the main-coupling and cross-coupling paths is proposed. Different filters that use the proposed resonators are realized and may have either quasi-elliptical or flat group-delay responses. Measurement results correlate well with theoretical predictions.