Digital logic for microwave circuits

Updated July 6, 2011

Although microwave people would much rather live in an analog world, sometimes it helps to know about digital logic when designing microwave systems, because chances are the information that is injected into or extracted from microwave signals eventually becomes ones and zeros.

We are going to add to this page slowly, for now we will include the mandatory digital logic that everyone should know to keep them off the short bus. These symbols are available for your use in "Microsoft stick-figure art" in our download area, in the Electronic Symbols download.

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Below are the logic table for these gates, memorize them or you will look like a fool someday! Like we did, until we received an email with corrections... thanks, Sankara!

AND			NAND			NOT
X	Y	R	X	Y	R	X	R
0	0	0	0	0	1	0	1
0	1	0	0	1	1	1	0
1	0	0	1	0	1
1	1	1	1	1	0

OR			NOR			XOR			XNOR
X	Y	R	X	Y	R	X	Y	R	X	Y	R
0	0	0	0	0	1	0	0	0	0	0	1
0	1	1	0	1	0	0	1	1	0	1	0
1	0	1	1	0	0	1	0	1	1	0	0
1	1	1	1	1	0	1	1	0	1	1	1

More to come!

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