122 GHz transmitter using frequency doublers
122 GHz transmitter using frequency doublers
复制标题
使用倍频器的 122 GHz 发射机
DOI:
10.1109/sirf.2011.5719319
复制
发表时间:
2011
期刊:
影响因子:
--
通讯作者:
S. Glisic
中科院分区:
文献类型:
--
作者:
N. Sarmah;K. Schmalz;W. Winkler;C. Scheytt;S. Glisic
In this work, a 122 GHz transmitter circuit using frequency doublers is realized in 0.13 µm SiGe:C BiCMOS technology with f<inf>T</inf>/f<inf>max</inf> of 250/315 GHz. Two versions of the frequency doubler based on the balanced topology with cascode transistor are implemented. In the basic version, the peak conversion gain was −9 dB with −6 dBm output power. In the improved version the peak conversion gain is improved to −6 dB with −3 dBm peak output power by using open stubs as second harmonic reflectors. A transmitter is realized by combining a VCO working from 59–62 GHz with the basic version of the doubler. The transmitter output power is from −3.5 to −5.5 dBm in the output frequency range of 118–122 GHz.