With apologies to Tom. For further details see:
"Planar Microwave Engineering"
Thomas H. Lee
The AoE of RF. Best book on radio ever written. I've got a 5000+ volume technical library
Danger: you will be an incurable RF junky if you read it all the way through.
It really should be subtitled: "The Joy of Radio" .
Sorry Tom for any discomfort caused, but I took a BA in literature before meandering off into the sciences. I'm a harsh critic of bad writing and a huge admirer of good writing. I suspect Don Lancaster had as much affect on you as he did on many others.
PME is an obscenely expensive book. The previous version is sold in the 3rd word for less. I have both and PME is worth the uptick if you can afford it.
Have Fun!
Reg
On Sunday, October 29, 2023 at 03:53:37 PM CDT, Tom Lee <tomlee@...> wrote:
S-parameters are not limited to passive networks.
When making measurements on active devices, you just have to take more care to supply bias in a way that doesn't corrupt your measurement, and to observe proper limits on drive amplitudes to keep the active devices in the linear region. But "Port 1" and "Port 2" assignments are arbitrary. So, as Reginald says, just reverse the ports manually and you'll be able to measure S22 and S12 (again, while also making sure that the DUT is properly powered up and driven with appropriate-magnitude signals).
-- Cheers,
Tom
-- Prof. Thomas H. LeeFaculty Co-Director, SystemX AllianceDirector, Stanford-Samsung Research InitiativeAllen Ctr., Rm. 205420 Via Palou MallStanford UniversityStanford, CA 94305-4070
On 10/29/2023 11:32 AM, Jinxie wrote:
OK, but this only works for passive DUTs, one assumes?
