Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
I would start with the filter design 1st. Assume your PIN diodes are either a perfect open or a perfect short. Can you design a filter to meet your needs? If you can't do this, worrying about the PIN diodes is the least of your worries.
Know the RF fundamentals, impedance matching, Smith charts, noise figure, IP3, cascaded stages. Know the basic RFIC building blocks, Gilbert cells, cascodes, current mirrors, active loads. Study some basic RFIC circuits, LNA, Mixers, VCOs, PAs. I ask questions right out of Razavi's...
Maybe ask Randy Rhea on the agilent genesys forum? Since they are in the Genesys footnotes, he might have old copies.
I bet a lot of members here were not even born in 1978!
Wow! I haven't seen Puff in a long time. I didn't know it was still around. I learned my first microwave designs using Puff on a MS-DOS computer. The program works well and they would even give you the source code so you could see how they did the programming.
You need to load pull the output so you can come up with a family of matching curves on the Smith Chart. But that is the least of your problems. If you expect to have a broadband match from 10-50MHz, that is over two octaves and it is unlikely you can do this with simple L/C matching...
i found the problem - you have assigned bulk conductivity to the silicon and silicon dioxide. remove this and the simulation works. i have not been able to use conductivity in a dielectric and wave ports together. in those cases, i use lumped ports and terminal mode solution.
in general...
Re: Microstrip feed line
here are two examples
chemandy.com/calculators/microstrip_transmission_line_calculator.htm
chemandy.com/calculators/microstrip_transmission_line_calculator_IPC_2141.htm
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
