Title :
Multiband mixed-signal vector modulator IC
Author :
Mayer, Uwe ; Wickert, Michael ; Eickhoff, Ralf ; Ellinger, Frank
Author_Institution :
Circuit Design & Network Theor., Dresden Univ. of Technol., Dresden, Germany
Abstract :
This paper presents an active BiCMOS vector modulator based RF weighting circuit suitable for WLAN diversity transceivers. It features a LNA, a SPI and 8-bit DACs for vector control and internal references. When mounted on a PCB, it delivers a maximum gain of 12 dB at 5.6 GHz. It draws a current of 17 mA from a 3.3 V supply. The whole design is free of bulky inductors thus requiring an area of only 1.3 mm2.
Keywords :
BiCMOS integrated circuits; digital-analogue conversion; diversity reception; low noise amplifiers; mixed analogue-digital integrated circuits; printed circuits; radio transceivers; radiofrequency integrated circuits; wireless LAN; LNA; PCB; RF weighting circuit; WLAN diversity transceivers; active BiCMOS vector modulator; bulky inductors; current 17 mA; digital-analog conversion; frequency 5.6 GHz; internal references; multiband mixed-signal vector modulator; vector control; voltage 3.3 V; BiCMOS integrated circuits; CMOS integrated circuits; Gain; Impedance matching; Modulation; Radio frequency; BiCMOS; MIMO; Vector modulator; adaptive antenna combining;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2011 IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-8293-1
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2011.5940599
