278 GHz外差接收器，片上天线，用于65nm CMOS工艺的太赫兹成像

ESSCIRC Conference 2015 - 41st European Solid-State Circuits Conference (ESSCIRC) Pub Date : 2015-11-02 DOI:10.1109/ESSCIRC.2015.7313888

A. Siligaris, Y. Andee, E. Mercier, Jose Moron Guerra, J. Lampin, G. Ducournau, Y. Quéré

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引用次数: 13

摘要

介绍了一种低功耗278 ghz CMOS零中频外差接收机。该电路包括一个无源混频器、一个基带放大器、一个278 ghz三推次谐波注入锁定振荡器和一个集成天线。接收机测量到的最大转换增益为-12 dB，直流功耗为47 mW。片上天线尺寸为390×280 μm2。外差接收器用作太赫兹探测器进行成像。结果表明，由于外差结构和振荡器锁定，太赫兹图像质量和对比度显著提高。成像系统的噪声等效功率(NEP)为0.2 fW/Hz。

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A 278 GHz heterodyne receiver with on-chip antenna for THz imaging in 65 nm CMOS process

A low power 278-GHz CMOS zero-IF heterodyne receiver is presented in this paper. The circuit includes a passive mixer, a baseband amplifier, a 278-GHz triple push sub-harmonic injection locked oscillator and an integrated antenna. The receiver measured maximum conversion gain is -12 dB and the DC power consumption is 47 mW. The on-chip antenna size is 390×280 μm2. The heterodyne receiver is used as a THz detector for imaging. It is shown that thanks to the heterodyne structure and the oscillator locking the THz image quality and contrast increases significantly. The imaging system achieves a noise equivalent power (NEP) of 0.2 fW/Hz.

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ESSCIRC Conference 2015 - 41st European Solid-State Circuits Conference (ESSCIRC)

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