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In this paper, power-plane and ground-plane characterization on laminate packages and on wafer-level packages are carried out, and the electrical performance, in terms of loop-inductance, power-net isolation, signal-net cross-talk, from the two packaging technologies are compared. Measurement data on test structures is used to correlate the simulation approaches for signal traces with holes in their...
In this paper, a line driver for HomePlug AV powerline communication system has been described. The proposed line driver includes a damping factor control (DFC) network which suppressed the open loop high frequency peaking effect to improve the stability for the various characteristic impedance of powerline. The line driver was fabricated in TSMC 0.18-μm CMOS technology and occupied 0.195 mm2 active...
Based on the ratio of the sum of the fault component voltage phasors across the two terminals in the transmission line to the sum of the current phasors through the same line, which is defined as fault component integrated impedance in this paper, a new transmission-line pilot protection principle is proposed. When an external fault occurs, the amplitude of the fault component integrated impedance...
The demand for wireless communications is increasing through use of smart phones, 3G handsets wherein high speed and reliable data communication are crucial requirements. Multi-bands networks help to facilitate these at higher range of radio frequencies. In many wireless communications, power amplifiers (PA) are used to increase the amplitude of relatively weak signals. These PAs depend on matching...
Currently, there is widespread adoption of silicon-based technologies for the implementation of radio frequency (RF) integrated passive devices (IPDs) because of their low-cost, small footprint and high performance. These devices are receiving increased attention for developing front-end-module (FEM) applications in mobile communication systems. This paper discusses the design of low pass filters...
Coupled-resonator baluns consist of a pair of LC resonators that are coupled by mutual inductance. They are usually designed using circuit optimization methods, but this optimization is highly constrained by limitations in the implementing technology and restrictions on size and cost. However, by tuning the capacitors in each resonator, acceptably good designs can be realized over a wide range of...
In this paper, a novel transformer protection principle based on the excitation impedance is proposed. The excitation impedance of transformer can be calculated using fault components of terminal voltages and currents when external fault occurs, and which magnitude is large and which sign is positive. When internal fault occurs, the impedance calculated with fault component is the impedances of the...
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