Title :
A 5GHz LNA with new compact gain controllable active balun for ISM band applications
Author :
Rajashekharaiah, M. ; Upadhyaya, Parag ; Heo, Deukhyoun ; Chen, Yi-Jan Emery
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Washington State Univ., Pullman, WA, USA
Abstract :
A low noise amplifier (LNA) with a new gain controllable on-chip active balun has been designed for a 5 GHz industrial scientific medical (ISM) band direct conversion receiver (DCR). The active balun provides good gain and phase matching with LNA gains of 19.5 dB and 12 dB in high gain and low gain modes, respectively, while achieving a noise figure of 3 dB and an IIP3 of -11.5 dBm. In the low gain mode the LNA provides 50% power savings by using 15mW from a 3V supply.
Keywords :
CMOS integrated circuits; baluns; gain control; integrated circuit design; microwave amplifiers; microwave receivers; 12 dB; 15 mW; 19.5 dB; 3 V; 3 dB; 5 GHz; CMOS integrated circuit; active balun; direct conversion receiver; gain control; high gain mode; industrial scientific medical band; low gain mode; low noise amplifier; Application software; Controllability; Costs; Degradation; Gain control; Impedance matching; Radio frequency; Signal to noise ratio; Switches; Switching circuits;
Conference_Titel :
Solid-State and Integrated Circuits Technology, 2004. Proceedings. 7th International Conference on
Print_ISBN :
0-7803-8511-X
DOI :
10.1109/ICSICT.2004.1436761
