Abstract
A 2GHz-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, differential 2f Lo signal and f RF signal are required to produce quadrature base band (BB) signal. Since this mixer can eliminate a 90 degree phase shifter and one of the unit mixer blocks having a LO amplifier, it realizes very low power consumption and very small die area on IC chip. The SFDQM is fabricated in 0.35μm SiGe-BiCMOS technology and it's down conversion characteristics are evaluated in 2GHz -band. It performs the conversion gain of 18.5dB and the NF of 15.1 dB with the current consumption of 3mA and the die area of 0.22 × 0.31 mm 2 .
Original language | English |
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Article number | RTU3D-2 |
Pages (from-to) | 505-508 |
Number of pages | 4 |
Journal | Digest of papers - IEEE Radio Frequency Integrated Circuits Symposium |
Publication status | Published - 2005 Nov 15 |
Externally published | Yes |
Event | 2005 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium - Digest of Papers - Long Beach, CA, United States Duration: 2005 Jun 12 → 2005 Jun 14 |
Keywords
- Converter
- Direct conversion
- Frequency divider
- MMIC
- Microwave
- Mixer
- Silicon
ASJC Scopus subject areas
- Engineering(all)