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Advances in Radio Science An open-access journal of the U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V.
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Volume 15
Adv. Radio Sci., 15, 115–121, 2017
https://doi.org/10.5194/ars-15-115-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Adv. Radio Sci., 15, 115–121, 2017
https://doi.org/10.5194/ars-15-115-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

  21 Sep 2017

21 Sep 2017

Design of a 0.13 µm SiGe Limiting Amplifier with 14.6 THz Gain-Bandwidth-Product

Sehoon Park, Xuan-Quang Du, Markus Grözing, and Manfred Berroth Sehoon Park et al.
  • Institute of Electrical and Optical Communications Engineering (INT), University of Stuttgart, Stuttgart, Germany

Abstract. This paper presents the design of a limiting amplifier with 1-to-3 fan-out implementation in a 0.13 µm SiGe BiCMOS technology and gives a detailed guideline to determine the circuit parameters of the amplifier for optimum high-frequency performance based on simplified gain estimations. The proposed design uses a Cherry-Hooper topology for bandwidth enhancement and is optimized for maximum group delay flatness to minimize phase distortion of the input signal. With regard to a high integration density and a small chip area, the design employs no passive inductors which might be used to boost the circuit bandwidth with inductive peaking. On a RLC-extracted post-layout simulation level, the limiting amplifier exhibits a gain-bandwidth-product of 14.6 THz with 56.6 dB voltage gain and 21.5 GHz 3 dB bandwidth at a peak-to-peak input voltage of 1.5 mV. The group delay variation within the 3 dB bandwidth is less than 0.5 ps and the power dissipation at a power supply voltage of 3 V including output drivers is 837 mW.

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Short summary
This paper presents a new generalized design methodology based on simplified gain estimations for multi-stage Cherry–Hooper amplifiers. With the proposed approach, a limiting amplifier with 14.6 THz gain-bandwidth-product and 0.5 ps maximum group delay variation is designed.
This paper presents a new generalized design methodology based on simplified gain estimations...
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