Operational Amplifier Discrete Design

I've designed an discrete operational amplifier from 2N3904 and 2N3906 BJTs.
Check you the design of my (906) 482-6235.
I am currently in the process of evaluating the design. If anyone is interested in details email me at dlongstreet@ieee.org

Posted in Projects posted on Wednesday May 12 2010

Noise Figure in a Mixer

Noise is generated in mixers by diode or transistor elements, and by thermal source due to resistive losses. Noise figures of practical mixers range from 1-5dB, with diode mixers generally achieving lower noise figures than transistor mixers. The noise figure of a mixer depends on whether its input is a signal sideband signal or a double sideband signal. This is because the mixer will down convert noise at both sidebands frequencies (since these have the same IF), but the power of a SSB signal is one-half that of a DSB signal (for the same amplitude).

(Pozar, David. Microwave Engineering, p.618-619)

Posted in RFIC posted on Tuesday February 16 2010

Under Graduate work

I just added some of my undergraduate academic work. Take a look at my Academia page.

Posted in Academia posted on Monday February 01 2010

First Entry

This is my first entry of the blog...more will be coming soon.

Posted in No Category posted on Wednesday January 20 2010