Single-Ended and Differential Ka-Band BiCMOS Phased Array Front-Ends

Single-ended and differential phased array front-ends are developed for Ka-band applications using a 0.12 mum SiGe BiCMOS process. The phase shifters are based on CMOS switched delay networks and have 22.5deg phase resolution and <4deg rms phase error at 35 GHz, and can handle +10 dBm of RF power (P1dB) with a 3rd order intermodulation intercept point (IIP3) of +21 dBm. For the single-ended design, a SiGe low noise amplifier is placed before the CMOS phase shifter, and the LNA/phase shifter results in 11 plusmn 1.5 dB gain and <3.4 dB of noise figure (NF), for a total power consumption of only 11 mW. For the differential front-end, a variable gain LNA is also developed and shows 9-20 dB gain and <1deg rms phase imbalance between the eight different gain states. The differential variable gain LNA/phase shifter consumes 33 mW, and results in 10 + 1.3 dB gain and 3.8 dB of NF. The gain variation is reduced to 9.1 plusmn 0.45 dB with the variable gain function applied. The single-ended and differential front-ends occupy a small chip area, with a size of 350 times 800 mum2 and 350 times 950 mum2, respectively, excluding pads. These chips are competitive with GaAs and InP designs, and are building blocks for low-cost millimeter-wave phased array front-ends based on silicon technology.

[1]  G.M. Rebeiz,et al.  Ka-Band BiCMOS 4-Bit Phase Shifter with Integrated LNA for Phased Array T/R Modules , 2007, 2007 IEEE/MTT-S International Microwave Symposium.

[2]  D. Parker,et al.  Microwave industry outlook - defense applications , 2002 .

[3]  Gabriel M. Rebeiz,et al.  A 10–50-GHz CMOS Distributed Step Attenuator With Low Loss and Low Phase Imbalance , 2007, IEEE Journal of Solid-State Circuits.

[4]  Robert A. York,et al.  Distributed analog phase shifters with low insertion loss , 1999 .

[5]  Keiichi Ohata,et al.  Design and performance of a Ka-band monolithic phase shifter utilizing nonresonant FET switches , 2000 .

[6]  Huei Wang,et al.  K-band HBT and HEMT monolithic active phase shifters using vector sum method , 2004 .

[7]  F. Ellinger,et al.  Varactor-loaded transmission-line phase shifter at C-band using lumped elements , 2003 .

[8]  Gabriel M. Rebeiz,et al.  A 12-GHz SiGe phase shifter with integrated LNA , 2005, IEEE Transactions on Microwave Theory and Techniques.

[9]  Gabriel M. Rebeiz,et al.  0.13-$\mu$m CMOS Phase Shifters for X-, Ku-, and K-Band Phased Arrays , 2007, IEEE Journal of Solid-State Circuits.

[10]  Sorin P. Voinigescu,et al.  A scalable high frequency noise model for bipolar transistors with application to optimal transistor sizing for low-noise amplifier design , 1996, Proceedings of the 1996 BIPOLAR/BiCMOS Circuits and Technology Meeting.

[11]  Gabriel M. Rebeiz,et al.  Ka-Band SiGe HBT Low Noise Amplifier Design for Simultaneous Noise and Input Power Matching , 2007, IEEE Microwave and Wireless Components Letters.

[12]  Gabriel M. Rebeiz,et al.  Miniature Four-Way and Two-Way 24 GHz Wilkinson Power Dividers in 0.13 $\mu$m CMOS , 2007, IEEE Microwave and Wireless Components Letters.

[13]  Meng-Ju Chiang,et al.  A Ka-Band CMOS Wilkinson Power Divider Using Synthetic Quasi-TEM Transmission Lines , 2007, IEEE Microwave and Wireless Components Letters.

[14]  K. O. Kenneth,et al.  A 0.5-μm CMOS T/R switch for 900-MHz wireless applications , 2001, IEEE J. Solid State Circuits.

[15]  Jeonghu Han,et al.  A scalable model for the substrate resistance in multi-finger RF MOSFETs , 2003, IEEE MTT-S International Microwave Symposium Digest, 2003.

[16]  Ian D. Robertson,et al.  Monolithic ka-band 180-degree analog phase shifter employing HEMT-based varactor diodes , 1998 .

[17]  Xiang Guan,et al.  A fully integrated 24-GHz eight-element phased-array receiver in silicon , 2004, IEEE Journal of Solid-State Circuits.

[18]  R. V. Garver,et al.  Broad-Band Diode Phase Shifters , 1972 .

[19]  Y. K. Chen,et al.  A Microwave Phase and Gain Controller with Segmented-Dual-Gate MESFETs in GaAs MMICs , 1984 .

[20]  Gabriel M. Rebeiz,et al.  An X- and Ku-Band 8-Element Linear Phased Array Receiver , 2007, 2007 IEEE Custom Integrated Circuits Conference.

[21]  Charles F. Campbell,et al.  A compact 5-bit phase shifter MMIC for K-band satellite communication systems , 2000, 2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017).

[22]  D. Harame,et al.  SiGe heterojunction bipolar transistors and circuits toward terahertz communication applications , 2004, IEEE Transactions on Microwave Theory and Techniques.

[23]  B. A. Kopp,et al.  Transmit/receive modules , 2002 .

[24]  M. Kawano,et al.  Ka-band low loss and high power handling GaAs PIN diode MMIC phase shifter for reflected-type phased array systems , 1999, 1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282).

[25]  D. Parker,et al.  Phased arrays - part 1: theory and architectures , 2002 .