Precision Broadband RF Signal Recovery in Subsampled Analog Optical Links

High performance analog optical links based on quantum dot devices for UWB signal transmission

Low Cost Analog Testing of RF Signal Paths

A low cost method for testing analog RF signal paths suitable for BIST implementation in a SoC environment is described. The method is based on the use of a simple and low-cost one-bit digitizer that enables the reuse of processor and memory resources available in the SoC, while incurring little analog area overhead. The proposed method also allows a constant load to be observed by the circuit,...

Transporting RF Signals over Free-Space Optical Links

Free space optics (FSO) is a technology that uses modulated optical beams to transmit information line-of-sight through the atmosphere. To date, the primary focus of FSO research and development has been toward the transmission of digital signals, primarily for “last mile” applications. This paper reports the use of FSO to transport modulated radio frequency (RF) analog signals, together with a...

High Performance Precision Rectifier for Analog Signal Processing

This paper presents two improved precision rectifiers, each employing two active elements and two MOS transistors. The new circuits are advantageous when compared to the most recent work [5] by enjoying high input impedance and resistor-less realization, which makes them ideal for CMOS implementation. High precision and wide frequency operation of the circuits is shown along with parasitic inse...

Optical Interference Signal Processing in Precision Dimension Measurement