Title :
3~5 GHz Cascoded UWB Power Amplifier
Author :
Wang, Ruey-Lue ; Su, Yan-Kuin ; Liu, Chien-Hsuan
Author_Institution :
Dept. of Microelectron. Eng., Nat. Kaohsiung Marine Univ.
Abstract :
In this paper, a two-stage cascaded power amplifier (PA), which consists of cascode topology, for ultrawideband (UWB) systems operating in the 3.1-4.8 GHz frequency range is presented. The shunt-shunt feedback is used to arrive at wideband matching. A three-section ladder output network is exploited to achieve excellent output match in a wideband fashion and to optimize the power performance. The PA is implemented by TSMC 0.18mm mixed signal/RF process. The measured results show the following performance: S21 of 20.7-dB, more than 10-dB input and output return loss, 5.8% maximum power-added-efficiency and 2.57dBm output P1dB with 15.57dB power gain at 3GHz
Keywords :
circuit feedback; ladder networks; microwave power amplifiers; mixed analogue-digital integrated circuits; ultra wideband technology; wideband amplifiers; 0.18 mm; 15.57 dB; 3.1 to 4.8 GHz; PAE; TSMC mixed signal RF process; cascoded UWB power amplifier; ladder matching network; shunt-shunt feedback; three-section ladder output network; ultrawideband systems; wideband matching; Broadband amplifiers; Feedback; Impedance matching; Network topology; Power amplifiers; Power measurement; RF signals; Radio frequency; Signal processing; Ultra wideband technology; PAE; UWB; ladder matching network; power amplifier; shunt-shunt feedback;
Conference_Titel :
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0387-1
DOI :
10.1109/APCCAS.2006.342446
