Title :
A 2 GHz-band self frequency dividing quadrature mixer
Author :
Taniguchi, Eiji ; Kageyama, Chiemi ; Suematsu, Noriharu
Author_Institution :
Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kamakura, Japan
Abstract :
A 2 GHz-band self frequency dividing quadrature mixer (SFDQM) is proposed. The SFDQM uses a static-type 1/2 frequency divider as LO switching circuit, and needs no external 90 degree phase shifter. As the inputs of the mixer, a differential 2fLO signal and an fRF signal are required to produce a quadrature base band (BB) signal. Since this mixer can eliminate a 90 degree phase shifter and one of the unit mixer blocks having an LO amplifier, it realizes very low power consumption and very small die area on an IC chip. The SFDQM is fabricated in 0.35 μm SiGe-BiCMOS technology and its down conversion characteristics are evaluated in the 2 GHz-band. It performs a conversion gain of 18.5 dB and an NF of 15.1 dB with current consumption of 3 mA and die area of 0.22×0.31 mm2.
Keywords :
BiCMOS integrated circuits; Ge-Si alloys; UHF integrated circuits; UHF mixers; electric current; frequency dividers; integrated circuit design; power consumption; switching circuits; voltage-controlled oscillators; 0.22 mm; 0.31 mm; 0.35 micron; 15.1 dB; 18.5 dB; 2 GHz; BiCMOS technology; IC chip; SiGe; VCO; current consumption; die area; down conversion characteristics; phase shifter; power consumption; quadrature base band signal; self frequency dividing quadrature mixer; silicon-germanium technology; static frequency divider; Energy consumption; Frequency conversion; Mixers; Noise measurement; Performance gain; Phase shifters; RF signals; Radio frequency; Radiofrequency amplifiers; Switching circuits;
Conference_Titel :
Radio Frequency integrated Circuits (RFIC) Symposium, 2005. Digest of Papers. 2005 IEEE
Print_ISBN :
0-7803-8983-2
DOI :
10.1109/RFIC.2005.1489858
