题目/Title：A Simple and Robust Self-Healing Technique for Millimeter-Wave Amplifiers

作者/Author：贾海昆,池保勇,况立雪,王志华
                        Haikun Jia,Baoyong Chi,Lixue Kuang,Zhihua Wang

期刊/Journal：IET Circuits, Devices & Systems

年份/Issue Date：2016Jan.

卷（期）及页码/Volume（No.）&pages：Vol.10, No.1, pp. 37 - 43

摘要/Abstract：
A simple and robust self-healing technique for millimeter-wave (mm-wave) amplifiers is proposed. The self-healing technique can correct the operation frequency shifting of the amplifier (including its input and output impedance matching shifting) due to process, voltage and temperature (PVT) variations and modeling inaccuracy. A mm-wave amplifier with digitally controlled artificial dielectric (DiCAD) transmission lines as fine frequency tuning components and an on-chip power detector as the frequency shifting detector has been implemented in 65nm CMOS to verify the effectiveness of the technique. The operation frequency of five amplifier chips is calibrated by running the self-healing algorithm on a FPGA development board. On average, the gain of the amplifier is improved by 2.60 dB from 13.66 dB to 16.26 dB and the input matching is improved by 12.78 dB from -4.89 dB to -17.67 dB at 56 GHz after the proposed self-healing procedure.