A novel design and optimization method for distributed amplifiers (DAs) is proposed to make the circuit design more convenient and efficient. This method combines artificial intelligence (AI) optimization with manual design by two loops, i.e., outer manual loop and inner AI loop. The layout design is followed by AI optimization to take more influencing factors such as parasitic effect into account for the practicability. A DA with three gain cells is designed and optimized in a standard 0.18 μm complementary metal-oxide-semiconductor (CMOS) technology to verify the proposed method. With a chip area of only 0.55mm2, the DA provides 9.8 dB average forward gain from 1 to 15.2GHz. The output power at 1 dB output compression point is more than 7.7 dBm in the 2—14GHz frequency band and the peak power-added efficiency (PAE) is 10.6%. The measurement results validate the proposed method as a robust DA design procedure for improving circuit performance and design efficiency.
ZHANG Ying* (张瑛), LI Zeyou (李泽有), LI Xin (李鑫), YANG Hua (杨华)
. Efficient Design and Optimization Method for Distributed Amplifiers[J]. Journal of Shanghai Jiaotong University(Science), 2019
, 24(3)
: 281
-286
.
DOI: 10.1007/s12204-019-2069-3
[1] HUR B, EISENSTADT W R. CMOS programmablegain distributed amplifier with 0.5-dB gain steps [J].IEEE Transactions on Microwave Theory and Techniques,2011, 59(6): 1552-1559.
[2] HSIAO C Y, SU T Y, HSU S S H. CMOS distributedamplifiers using gate-drain transformer feedback technique[J]. IEEE Transactions on Microwave Theoryand Techniques, 2013, 61(8): 2901-2910.
[3] KAO J C, CHEN P, HUANG P C, et al. A novel distributedamplifier with high gain, low noise, and highoutput power in 0.18-μm CMOS technology [J]. IEEETransactions on Microwave Theory and Techniques,2013, 61(4): 1533-1542.
[4] HUANG T Y, LIN Y H, CHENG J H, et al. Ahigh-gain low-noise distributed amplifier with lowDC power in 0.18-μm CMOS for vital sign detectionradar [C]//2015 IEEE MTT-S International MicrowaveSymposium. Phoenix, AZ, USA: IEEE, 2015:1-3.
[5] CHEN P, HUANG P C, KUO J J, et al. A 22—31GHz distributed amplifier based on high-pass transmissionlines using 0.18 μm CMOS technology [J].IEEE Microwave and Wireless Components Letters,2011, 21(3): 160-162.
[6] LU C, PHAM A V H, SHAW M, et al. Linearizationof CMOS broadband power amplifiers through combinedmultigated transistors and capacitance compensation[J]. IEEE Transactions on Microwave Theoryand Techniques, 2007, 55(11): 2320-2328.
[7] ZHANG Y, MA K X, YANG H, et al. 1—20GHzdistributed power amplifier based on shared artificialtransmission lines [J]. IEICE Electronics Express,2017, 14(8): 1-6.
[8] G¨UNEC? F, KESKIN A K, DEMIREL S. Geneticalgorithm applied to microstrip implementationof matching circuits for a UWB low-noise amplifier[C]//International Conference on Ultra-Wideband.Syracuse, NY, USA: IEEE, 2012: 241-245.
[9] KOKOLOV A A, SHEYERMAN F I, COLANTONIOP, et al. Design of harmonic-tuned dual-bandGaN HEMT power amplifier based on genetic algorithm[C]//24th International Crimean ConferenceMicrowave and Telecommunication Technology.Sevastopol, Crimea, Russia: IEEE, 2014: 95-96.
[10] KALENTYEV A A, BABAK L I, GARAYS D V.Genetic-algorithm-based sythesis of low-noise amplifierswith automatic selection of active elements andDC biases [C]//9th European Microwave IntegratedCircuit Conference. Rome, Italy: IEEE, 2014: 520-523.
