Noise in distributed MESFET preamplifiers

Adaptive transversal preamplifier for high speed lightwave systems

“…If we take an average noise of 18 pA/ Hz across the band, then the predicted receiver sensitivity at 5 Gb/s would be dBm. The performance of the circuit can be improved by increasing [6]. This would reduce the noise of the receiver.…”

“…As a distributed preamplifier, the noise and gain characteristics are often superior to those of more traditional methods of preamplification [6]. Using the same structure, a transversal preamplifier can be constructed, as shown in It differs from the distributed preamplifier in that the output is taken at the opposite end of the drain line.…”

“…1 . Using noise analysis similar to [6], it can be shown that the modeled equivalent input noise current is given by (2), shown at the bottom of the page, where and and is Boltzmann's constant and is in degrees Kelvin. The first two terms in (2) are the noise contributions due to the terminations and .…”

“…The wide bandwidth of the distributed amplifier (DA) structure makes it an attractive component for use in high-speed lightwave systems [6]. As a distributed preamplifier, the noise and gain characteristics are often superior to those of more traditional methods of preamplification [6].…”

Electronic dispersion compensation ICs for high speed long haul lightwave systems

“…The wide bandwidth of the distributed amplifier (DA) structure makes it an attractive component for use in highspeed lightwave systems [6]. Using the same structure, a transversal amplifier/filter can be constructed as shown in Figure 2.…”