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Application of an equivalent circuit to signal-to-noise calculations in MRI

✍ Scribed by John G. van Heteren; R.Mark Henkelman; Michael J. Bronskill

Book ID
108009224
Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
852 KB
Volume
5
Category
Article
ISSN
0730-725X

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A method to simultaneously extract the s
A method to simultaneously extract the small-signal equivalent circuit and noise parameters of heterojunction bipolar transistors
✍ Ma. Carmen Maya; Antonio LΓ‘zaro; LluΓ­s Pradell πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 English βš– 351 KB πŸ‘ 1 views

## Abstract A method to extract the elements of the small‐signal equivalent circuit and the noise parameters (NPs) of heterojunction bipolar transistors (HBTs) is presented. The extraction is done by simultaneous fitting of the measured __S__‐parameters, noise figure (for a well‐matched impedance),