Title :
A self-healing mm-wave amplifier using digital controlled artificial dielectric transmission lines
Author :
Haikun Jia ; Baoyong Chi ; Lixue Kuang ; Zhihua Wang
Author_Institution :
Inst. of Microelectron., Tsnghua Univ., Beijing, China
Abstract :
A self-healing mm-wave amplifier using digital controlled artificial dielectric (DiCAD) transmission lines is proposed. DiCAD transmission lines are employed to correct the frequency shifting of input matching (S11), output matching (S22) and gain (S21) due to process, voltage and temperature (PVT) variation and model inaccuracy. On-chip power detector is integrated into the amplifier to detect the output voltage strength, which could be used to implement the closed-loop frequency self-calibration. The chip is implemented in 65nm CMOS with a die area of 0.48×0.79 mm2 including the PADs. Measurement results show that the gain of the amplifier is improved by 3.4dB and the input matching is improved by 20.3dB at 56GHz after healing.
Keywords :
CMOS integrated circuits; detector circuits; dielectric materials; millimetre wave amplifiers; transmission lines; CMOS; DiCAD transmission lines; closed-loop frequency self-calibration; digital controlled artificial dielectric transmission lines; frequency 56 GHz; frequency shifting; on-chip power detector; output voltage strength; self-healing mm-wave amplifier; size 65 nm; CMOS integrated circuits; Capacitance; Detectors; Impedance matching; Metals; Power transmission lines; Transmission line measurements;
Conference_Titel :
Solid-State Circuits Conference (A-SSCC), 2013 IEEE Asian
Conference_Location :
Singapore
Print_ISBN :
978-1-4799-0277-4
DOI :
10.1109/ASSCC.2013.6691073
