245 GHz SiGe Transmitter Array for Gas Spectroscopy

245 GHz SiGe Transmitter Array for Gas Spectroscopy
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用于气体光谱分析的 245 GHz SiGe 发射机阵列

DOI:
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发表时间:
2014
期刊:
2014 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS)
影响因子:
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通讯作者:
H. Hubers
H. Hubers
中科院分区:
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文献类型:
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作者:
K. Schmalz;J. Borngraber;W. Debski;M. Elkhouly;Ruoyu Wang;P. Neumaier;H. Hubers

文献摘要

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已经实现了用于气体光谱系统的具有集成天线阵列的 245 GHz 发射器 (TX) 阵列,该阵列由具有 1/64 分频器的推推 VCO、功率放大器、倍频器和具有局部背面蚀刻的片上天线组成。 TX 频率可在 238 GHz 至 252 GHz 范围内调节。 TX 阵列采用 0.13 μm SiGe:C BiCMOS 技术制造,fT/fmax 为 300GHz/500GHz。其估计输出功率在 245 GHz 时为 7 dBm,EIRP 在 245 GHz 时达到 18 dBm。 245 GHz 光谱系统包括一个 TX 和一个 SiGe 接收器。甲醇的高分辨率吸收光谱证明了该光谱系统的灵敏度,并且该 TX 阵列将进一步提高灵敏度。
A 245 GHz transmitter (TX) array with an integrated antenna-array for a gas spectroscopy system has been realized, which consists of a push-push VCO with a 1/64 frequency divider, power amplifiers, frequency doublers, and on-chip antennas with localized backside etching. The TX-frequency is tunable in the range from 238 GHz to 252 GHz. The TX-array is fabricated in 0.13 μm SiGe:C BiCMOS technology with fT/fmax of 300GHz/500GHz. Its estimated output power is 7 dBm at 245 GHz, and the EIRP reaches 18 dBm at 245 GHz. The 245 GHz spectroscopy system includes a TX and a receiver in SiGe. The sensitivity of this spectroscopy system is demonstrated by the high-resolution absorption spectrum of methanol and will be increased further by this TX-array.