Low noise and high linearity LNA based on InGaP/GaAs HBT for 5.3 GHz WLAN

Myoung, Seong-Sik ; Cheon, Sang-Hoon ; Yook, Jong-Gwan (2005) Low noise and high linearity LNA based on InGaP/GaAs HBT for 5.3 GHz WLAN. In: Gallium Arsenide applications symposium. GAAS 2005, 3-7 ottobre 2005, Parigi.
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Abstract

This paper presents a low noise and high linearity LNA based on InGaP/GaAs HBT for 5.3 GHz WLAN. Previous LNAs based on FET series such as HEMT show excellent noise characteristics, but poor linearity. The InGaP/GaAs HBT LNA shows excellent linearity and noise characteristics because of its high base doping concentration. The proposed LNA is fully integrated in area of 0.9 × 0.9 mm2 single chip with high Q spiral inductors and MIM capacitors and biased at current point for optimum noise figure and gain characteristics, furthermore, excellent linearity is achieved. Measured result of the proposed LNA shows 13 dB gain, 2.1 dB noise figure, and excellent linearity in terms of IIP3 of 5.5 dBm. The figure of merit (FOM) defined as a function of the linearity and noise figure is 20.1 dB, which is the best result among previous LNAs.

Abstract
Document type
Conference or Workshop Item (Paper)
Creators
CreatorsAffiliationORCID
Myoung, Seong-Sik
Cheon, Sang-Hoon
Yook, Jong-Gwan
Subjects
DOI
Deposit date
15 Feb 2006
Last modified
17 Feb 2016 14:18
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