DC-Coupled Ultra Broadband Differential to Single-Ended Active Balun in 130-nm SiGe BiCMOS Technology
F Iseini, A Malignaggi, F Korndörfer… - IEEE Microwave and …, 2022 - ieeexplore.ieee.org
F Iseini, A Malignaggi, F Korndörfer, G Kahmen
IEEE Microwave and Wireless Technology Letters, 2022•ieeexplore.ieee.orgThe dc-coupled (DCC) broadband operation is a fundamental requirement in many
applications, especially in optical communication systems. However, circuits allowing
differential to single-ended conversion in a DCC fashion are very rare to be found in the
literature. In this letter, a novel differential to single-ended ultrabroadband DCC balun in a
130-nm SiGe BiCMOS technology featuring of 300/500 GHz is presented. A circuit analysis
and a performance comparison between the proposed balun and two other configurations …
applications, especially in optical communication systems. However, circuits allowing
differential to single-ended conversion in a DCC fashion are very rare to be found in the
literature. In this letter, a novel differential to single-ended ultrabroadband DCC balun in a
130-nm SiGe BiCMOS technology featuring of 300/500 GHz is presented. A circuit analysis
and a performance comparison between the proposed balun and two other configurations …
The dc-coupled (DCC) broadband operation is a fundamental requirement in many applications, especially in optical communication systems. However, circuits allowing differential to single-ended conversion in a DCC fashion are very rare to be found in the literature. In this letter, a novel differential to single-ended ultrabroadband DCC balun in a 130-nm SiGe BiCMOS technology featuring of 300/500 GHz is presented. A circuit analysis and a performance comparison between the proposed balun and two other configurations which are commonly used to convert a differential signal to a single-ended one is carried out. The design of the mentioned balun is described focusing on the trade-offs between gain, bandwidth (BW) and linearity. Measurement results show how the presented topology can achieve a low-frequency power gain of −7 dB and a 1 dB BW of 80 GHz, along with a total harmonic distortion (THD) of 7%.
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