10-GHz Highly Symmetrical Sub-Harmonic Gilbert Mixer Using GaInP/GaAs HBT Technology

A 10-GHz sub-harmonic Gilbert mixer is demonstrated using GaInP/GaAs hetero-junction bipolar transistor technology. The local oscillator (LO) signal time-delay path in the sub-harmonic LO stage is compensated using the fully symmetrical stacked-LO doubler; therefore, the balance of the sub-harmonic LO stage, the radio frequency to intermediate frequency isolation, and IIP2 are improved. The demonstrated 10-GHz sub-harmonic mixer achieves 10 dB conversion gain, IP1dB of -12 dBm, IIP3 of 2 dBm and IIP2 of 33 dBm

[1]  R. Svitek,et al.  5-6 GHz SiGe active I/Q subharmonic mixers with power supply noise effect characterization , 2004, IEEE Microwave and Wireless Components Letters.

[2]  L. Larson,et al.  A wide-bandwidth Si/SiGe HBT direct conversion sub-harmonic mixer/downconverter , 2000, IEEE Journal of Solid-State Circuits.

[3]  A. Molnar,et al.  A single-chip quad-band (850/900/1800/1900 MHz) direct-conversion GSM/GPRS RF transceiver with integrated VCOs and fractional-N synthesizer , 2002, 2002 IEEE International Solid-State Circuits Conference. Digest of Technical Papers (Cat. No.02CH37315).

[4]  Danilo Manstretta,et al.  Second-order intermodulation mechanisms in CMOS downconverters , 2003, IEEE J. Solid State Circuits.

[5]  V. Puyal,et al.  DC-100-GHz frequency doublers in InP DHBT technology , 2005, IEEE Transactions on Microwave Theory and Techniques.

[6]  Chinchun Meng,et al.  10-GHz SiGe BiCMOS Sub-Harmonic Gilbert Mixer Using the Fully Symmetrical and Time-Delay Compensated LO Cells , 2007, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

[7]  J. Chiu,et al.  A noise cancellation technique in active RF-CMOS mixers , 2005, IEEE Journal of Solid-State Circuits.

[8]  B. Gilbert,et al.  The MICROMIXER: a highly linear variant of the Gilbert mixer using a bisymmetric Class-AB input stage , 1997, IEEE J. Solid State Circuits.

[9]  D. Costa,et al.  Use of surface passivation ledges and local negative feedback to reduce amplitude modulation noise in AlGaAs/GaAs heterojunction bipolar transistors , 1994, IEEE Microwave and Guided Wave Letters.

[10]  K. W. Martin,et al.  A 6-GHz integrated phase-locked loop using AlGaAs/GaAs heterojunction bipolar transistors , 1992 .

[11]  Ed Balboni,et al.  Even harmonic double-balanced active mixer for use in direct conversion receivers , 2003 .

[12]  Guo-Wei Huang,et al.  The Port-to-Port Isolation of the Downconversion P-Type Micromixer Using Different N-Well Topologies , 2006, IEICE Trans. Electron..