Lee, Dong Ho ; Ko, Sangsoo ; Jeon, Sang-Hoon ; Park, Jae-Woo ; Hong, Songcheol
(2004)
A Distributed Model of Four-Port Monolithic
Transformer.
In: Gallium Arsenide applications symposium. GAAS 2004, 11—12 Ottobre, Amsterdam.
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Abstract
This paper deals with modeling of a monolithic spiral transformer. The transformer is designed and fabricated as a symmetrical octagonal spiral structure using two-metal layer process on GaAs substrate for input balun applications of 2 GHz and 5 GHz push-pull power amplifiers. A distributed model of the transformer is developed to fit in wide frequency range with four ports.
The model includes the skin effect which describes increase
in series resistance with frequency. Six different sets of twoport s-parameters are measured to obtain full
characteristics of the four-port transformer while the other
two ports are shorted to ground. The model is validated
with measurement results in 100 MHz to 6 GHz.
Abstract
This paper deals with modeling of a monolithic spiral transformer. The transformer is designed and fabricated as a symmetrical octagonal spiral structure using two-metal layer process on GaAs substrate for input balun applications of 2 GHz and 5 GHz push-pull power amplifiers. A distributed model of the transformer is developed to fit in wide frequency range with four ports.
The model includes the skin effect which describes increase
in series resistance with frequency. Six different sets of twoport s-parameters are measured to obtain full
characteristics of the four-port transformer while the other
two ports are shorted to ground. The model is validated
with measurement results in 100 MHz to 6 GHz.
Document type
Conference or Workshop Item
(Paper)
Creators
Subjects
DOI
Deposit date
15 Jun 2005
Last modified
17 Feb 2016 14:12
URI
Other metadata
Document type
Conference or Workshop Item
(Paper)
Creators
Subjects
DOI
Deposit date
15 Jun 2005
Last modified
17 Feb 2016 14:12
URI
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