Title :
A concurrent multi-band LNA for multi-standard radios
Author :
Duo, Xinzhong ; Zheng, Li-Rong ; Ismail, Mohammed ; Tenhunen, Hannu
Author_Institution :
Dept. of Microelectron. & Inf. Technol., R. Inst. of Technol., Kista, Sweden
Abstract :
A source-degenerated cascade LNA, which works at 2.4 GHz and 5.8 GHz simultaneously, is designed for Bluetooth and IEEE wireless LAN 802.11 a/b/g receivers. In this design, 0.15 μm GaAs PHEMT technology and embedded passives in an MCM-D substrate are implemented. At 2.4 GHz and 5.8 GHz, this LNA provides 12.2 dB and 15.3 dB gain, respectively. Noise figures of the LNA are 0.53 dB and 1.43 dB, respectively. Good input matching and output matching are also achieved - S11 and S22 at both frequencies are less than -10 dB.
Keywords :
Bluetooth; HEMT integrated circuits; impedance matching; microwave amplifiers; multichip modules; radio receivers; wireless LAN; 0.15 micron; 0.53 dB; 1.43 dB; 12.2 dB; 15.3 dB; 2.4 GHz; 5.8 GHz; Bluetooth; GaAs; MCM-D substrate; PHEMT; concurrent multiband LNA; embedded passives; input/output matching; multistandard radios; receivers; source-degenerated cascade LNA; wireless LAN; Costs; Frequency; Gallium arsenide; Impedance matching; Laboratories; Microelectronics; Network topology; PHEMTs; Receivers; Wideband;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465503
