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Frequency Response Heterojunction Bipolar Transistor

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insyspower

New Member
I have a project, first i need to find a circuit to Analyse/study the Frequency Response of Heterojunction Bipolar Transistor. Then simulate that circuit on SPICE (i'am using Orcad Cadence).

Can someone help me finding a circuit as mentioned above???, I'm having difficulties finding one. Any links, etc, would be very helpful, just need some circuit to start with.
 
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insyspower

New Member
The fT (Transition frequency) of a transistor (the ones i'm studying) ranges from 10 GHz to 100 GHz (High Frequency).
The Beta should be around β=200 (Hfe).

How to add Microstrip transmission lines to Orcad Cadence? do i need the PCB version of it or just the regular version?
 

ci139

Active Member
blind running:
??? ,
https://www.google.com/search?q=hbt+design+amplifier+analysis+-forum+-patent+-bjt&tbm=isch returned
. i never checked the article date !!! (the host site here seems to be hbt speciffic articles !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! did you ever notice -- click click -- on image for domain)
https://www.google.com/search?q=dhbt+hbt&tbm=isch -- seems promising (for today's "casino" as compared what it initially was) as it returns more than just 2 or NONE results about the subject
 
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