Title :
Low noise high linearity ultra broadband monolithic amplifier using travelling-wave gain stages
Author :
Barajas, Enrique ; Aja, Beatriz ; De la Fuente, M. Luisa ; Pascual, Juan Pablo ; Artal, Eduardo
Author_Institution :
Departamento Ingenieria de Comunicaciones, Univ. de Cantabria, Santander, Spain
Abstract :
A 2-20 GHz two-cascaded dual stage MMIC distributed amplifier (2-CDSDA) is presented in this paper. It consists of two cascaded dual-stage distributed amplifiers in order to achieve flat gain, good terminal match, low noise figure and high output power level. The topology of this amplifier joins the best features of the conventional distributed amplifiers and the cascaded distributed amplifiers. The measured small signal gain was 17 ± 0.57 dB from 2 to 20 GHz. A minimum noise figure of 3 dB was achieved while a 14.9 dBm of output power was measured at the 1-dB compression point. The amplifier has been fabricated using the D01PH process provided by OMMIC. The chip size is 2 × 1.5 mm2.
Keywords :
HEMT integrated circuits; MMIC amplifiers; distributed amplifiers; network topology; travelling wave amplifiers; wideband amplifiers; 1.5 mm; 2 mm; 2 to 20 GHz; 3 dB; 3 mm; D01PH process; MMIC distributed amplifier; amplifier topology; dual stage distributed amplifier; pseudomorphic high electron mobility transistors; travelling-wave gain stages; two-cascaded distributed amplifier; ultra broadband monolithic amplifier; Broadband amplifiers; Distributed amplifiers; Linearity; Low-noise amplifiers; MMICs; Noise figure; Power amplifiers; Power generation; Semiconductor device measurement; Topology;
Conference_Titel :
Microwave Conference, 2005 European
Print_ISBN :
2-9600551-2-8
DOI :
10.1109/EUMC.2005.1610120
