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Journal of the Korean Institute of Electromagnetic and Science 2004;4(1):37-42.
Miniaturized LNB Downconverter MMIC for Ku-band Satellite Communication System using InGaP/GaAs HBT Process
Jei-Young Lee1, Sang-Hun Lee2, Jong-Chul Lee2, Jong-Heon Kim2, Byunje Lee2, Chan-Hyeong Park2, Nam-Young Kim1
1RFIC Center, Kwangwoon University
2RFIC Center, Kwangwoon Universit
Abstract
In this paper, LNB(low noise block) downconverter MMIC is designed for Ku-band satellite communication system using InGaP/GaAs HBT high linear process. Designed MMIC consists of low noise amplifier, double balanced mixer, and IF amplifier with a total chip area of 2.6${times}$1.1 $textrm{mm}^2$. Designed MMIC has the characteristics of over 37.5 ㏈ conversion gain, 14 ㏈ noise figure, ripple of 3 ㏈, and output-referred $P_{1dB}$TEX>(1 ㏈ compression power) of 2.5 ㏈m with total power dissipation of 3 V, 50 mA.
Key words: InGaP/GaAs HBT, Ku-band, LNB Downconverter, MMIC
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