Active Positive Sloped Equalizer for X-Band SiGe BiCMOS Phased Array Applications

This brief presents an active equalizer circuit with positive gain slope at X-Band (8–12 GHz). Compared to passive examples, the active equalizer realized better filter and impedance characteristics in frequency of interest with increased functionality for a single amplification stage. It achieved close to 10 dB of peak gain, a +1.13 dB/GHz gain slope with 2.8 dB noise figure (NF) by utilizing cascode topology. The design reaches a −1.5 dBm input-referred compression point (input-P1dB) while consuming 46 mW of power. To the best of authors’ knowledge, the presented work achieves the best on-chip gain, a gain slope and NF performance in the literature as an equalizer that utilizes SiGe BiCMOS technology.

[1]  V. Camarchia,et al.  X-band wideband 5W GaN MMIC power amplifier with large-signal gain equalization , 2012, 2012 Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits.

[2]  J. S. Mason,et al.  Transmit/receive module technology for X-band active array radar , 1991 .

[3]  Qingqing Liang,et al.  An X-band SiGe LNA with 1.36 dB mean noise figure for monolithic phased array transmit/receive radar modules , 2006, IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, 2006.

[4]  Shen-Iuan Liu,et al.  A 50-Gb/s 10-mW Analog Equalizer Using Transformer Feedback Technique in 65-nm CMOS Technology , 2009, IEEE Transactions on Circuits and Systems II: Express Briefs.

[5]  Kiat Seng Yeo,et al.  A Wideband Low Power Low-Noise Amplifier in CMOS Technology , 2010, IEEE Transactions on Circuits and Systems I: Regular Papers.

[6]  Andrea Bevilacqua,et al.  A 2–16 GHz 65 nm CMOS Stepped-Frequency Radar Transmitter With Harmonic Rejection for High-Resolution Medical Imaging Applications , 2015, IEEE Transactions on Circuits and Systems I: Regular Papers.

[7]  Jin-Cheol Jeong,et al.  A 6–18-GHz GaAs Multifunction Chip With 8-bit True Time Delay and 7-bit Amplitude Control , 2018, IEEE Transactions on Microwave Theory and Techniques.

[8]  H. Shigematsu,et al.  GaN single-chip transceiver frontend MMIC for X-band applications , 2012, 2012 IEEE/MTT-S International Microwave Symposium Digest.

[9]  J. C. Jeong,et al.  X-band high power SiGe BiCMOS multi-function chip for active phased array radars , 2011 .

[10]  A. Madjar,et al.  A novel 2-4 GHz multi-passband tunable and gain controlled miniature active equalizer/filter , 1991, 1991 IEEE MTT-S International Microwave Symposium Digest.

[11]  S. C. Bera.  Amplitude Tilt Active Equalizer for Frequency and Temperature Compensation , 2011, IEEE Microwave and Wireless Components Letters.

[12]  Martin Oppermann,et al.  GaN based wideband T/R module for multi-function applications , 2015, 2015 European Microwave Conference (EuMC).

[13]  Ta-Shun Chu,et al.  A UWB Impulse-Radio Timed-Array Radar With Time-Shifted Direct-Sampling Architecture in 0.18-$\mu{\rm m}$ CMOS , 2014, IEEE Transactions on Circuits and Systems I: Regular Papers.

[14]  Alen Fejzuli,et al.  Broadband Amplifier Gain Slope Equalization with a Single Passive Component , 2006 .

[15]  Zhihua Wang,et al.  A 17 mW 3-to-5 GHz Duty-Cycled Vital Sign Detection Radar Transceiver With Frequency Hopping and Time-Domain Oversampling , 2017, IEEE Transactions on Circuits and Systems I: Regular Papers.

[16]  Chinchun Meng,et al.  2.4-GHz $Q$ -Enhanced Lumped Ring Filter With Two Transmission Zeros Using 0.18- $\mu$ m SiGe BiCMOS Process , 2017, IEEE Microwave and Wireless Components Letters.

[17]  Peter R. Kinget,et al.  A Discrete-Time Digital-IF Interference-Robust Ultrawideband Pulse Radio Transceiver Architecture , 2010, IEEE Transactions on Circuits and Systems I: Regular Papers.

[18]  Andrea Bentini,et al.  A 6–18 GHz GaAs multifunctional chip for transmit/receive modules , 2014, 2014 44th European Microwave Conference.