A 132 -160 GHz low-noise amplifier (LNA) in 0.13 mm SiGe BiCMOS technology is presented. The gain-boosting technique and 3D grounded-shielding structures have been employed to achieve higher gain with lower power consumption and silicon occupation. The experimental results show that the LNA with a chip area of 400 × 900 mm achieves gain of 21 dB with a 3 dB bandwidth of 28 GHz and noise figure of 8.5 dB at 145 GHz, with total DC power consumption of 14.5 mW.Introduction: In millimetre-wave receiver design, the low-noise amplifier (LNA) is a critical building block that amplifies the received signal and contributes most of the noise figure of the whole receiver. In most previous research, high-performance III -V compound semiconductors were generally utilised for millimetre-wave LNA design. In recent years, with the downscaling of silicon-based device size, its f T and f MAX are rapidly increasing and have been demonstrated to be competitive with those of the III -V compound semiconductors [1]. In addition, with the compatibility with baseband circuit and high-quality passive elements, the silicon-based technology shows the advantage for costeffective highly integrated system-on-chip (SoC). But with the increase of operation frequency, the performance of the circuit has been greatly affected by the lossy silicon substrate and the thin metal loss. Thus, it is a challenge to realise a high gain and low noise figure LNA beyond 100 GHz frequency since the currently available gain of single transistor at such high frequency range is still small. In this Letter, we present a 132 -160 GHz LNA in 0.13 mm SiGe BiCMOS technology. By a gain-boosting technique, the gain of each stage of the LNA has been increased by more than 38.5% and further improved noise performance and power consumption. To improve multi-stage stability and reduce the impact from parasitic effect, a 3D grounded-shielding structure is used. The results show that the LNA has 21 dB peak gain and 8.5 dB noise figure at 145 GHz while the power consumption is 14.5 mW.