Bandpass sampling algorithm is effectively adopted to obtain the digital signal with significantly reduced sampling rate for a single radio frequency(RF) signal. In order to apply the concept to multiple RF signals, we propose bandpass sampling algorithms with the normal and the inverse placements since we are interested in uniform order of the spectrum in digital domain after bandpass sampling...

By controlling the degrees of freedom for the components in the system and using a PWL solver, a tradeoff between speed and accuracy is realized. Electrical components are modeled using a similar MNA technique. The interaction between electrical and mechanical components is accomplished by modeling the coupled energy between the domains. In this paper we demonstrate the capabilities of our syst...

By controlling the degrees of freedom for the components in the system and using a PWL solver, a tradeoff between speed and accuracy is realized. Electrical components are modeled using a similar MNA technique. The interaction between electrical and mechanical components is accomplished by modeling the coupled energy between the domains. In this paper we demonstrate the capabilities of our syst...

This paper describes recent technology trend of mixed analog digital RF circuits. With the progress of CMOS technology, largescale digital signal process and control function can be integrated in an RF integrated circuit and some analog signal process blocks can be translated to digital signal processing units. At the same time, the design of remaining analog functional blocks becomes very hard...

The rapid increase in Internet communications’ products such as high-speed switches, SerDes (serial-deserializer) elements and XAUI (X=10G, attachment unit interface) ports has energized the need for process technologies that support both digital and analog (mixed-signal) elements at radio frequencies (RF). In order for these products to be competitive, process technologies that support analog/...

RF signals transmitted via wireless mobile channels suffer from several effects like smallscale fading and signal dispersion and distortion. This paper reviews these effects and simulates Rayleigh and Rician multipath fading channels with a comparison between them in terms of the effect of RF signal random fluctuations, average received signal level, outage probability, and effect of Doppler sh...