A Low-Voltage Broadband Feedforward-Linearized BJT Mixer

A low-voltage, feedforward-linearized bipolar mixer realizes an input IP 3 of +14.3 dBm and an input IP 2 of +54.5 dBm at 2.4 GHz. Conversion (power) gain over the 1-6GHz RF input range is 12.4plusmn0.35 dB, while the input IP 3 is 13.6plusmn1.8dBm over the same frequency range. The broadband mixer&...

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Veröffentlicht in:	IEEE journal of solid-state circuits 2006-09, Vol.41 (9), p.2177-2187
Hauptverfasser:	Su-Tarn Lim, Long, J.R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Active mixer Applied sciences Baseband BiCMOS Broadband Circuit properties Circuits Conversion Costs Design. Technologies. Operation analysis. Testing distortion cancellation Electric, optical and optoelectronic circuits Electronic circuits Electronics Energy consumption Exact sciences and technology feedforward linearization Frequency ranges Gain Impedance Integrated circuits Linearity Magnetic devices Mixers Noise figure Noise levels Radio frequencies Radio frequency Radiofrequency integrated circuits Receivers Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices SiGe-HBT Signal convertors silicon radio frequency integrated circuits third-order input intercept point Transistors Ultra wideband technology
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Beschreibung
Zusammenfassung:	A low-voltage, feedforward-linearized bipolar mixer realizes an input IP 3 of +14.3 dBm and an input IP 2 of +54.5 dBm at 2.4 GHz. Conversion (power) gain over the 1-6GHz RF input range is 12.4plusmn0.35 dB, while the input IP 3 is 13.6plusmn1.8dBm over the same frequency range. The broadband mixer's RF input impedance varies from 60.3-j7.1 at 2.4 GHz to 57.4-j16.6 Omega at 5.8GHz. Measured SSB (50 Omega) noise figure is 18.6 dB at 2.4 GHz. No on-chip inductors are used in the design, and the 0.14 mm 2 (active area) mixer dissipates 7.2 mW from a (minimum) 1.2 V supply
ISSN:	0018-9200 1558-173X
DOI:	10.1109/JSSC.2006.880384