Broadband Circuit Techniques for Multi-Terahertz Gain-Bandwidth-Product Low-Power Applications

Radwan A, Weigel R, Kissinger D (2015)


Publication Type: Journal article

Publication year: 2015

Journal

Book Volume: 63

Pages Range: 3701-3712

Journal Issue: 11

DOI: 10.1109/TMTT.2015.2481398

Abstract

In this paper, two proposed bandwidth (BW) extension techniques are discussed and analytically analyzed. The capabilities of the proposed feedback techniques are demonstrated with two design examples of different circuitry, supported by simulation and measurement results. The first design example is a broadband low-power active balun, employing one of the presented feedback techniques. It is capable of operating with a gain of 2.2 dB and BW of more than 70 GHz. The amplitude imbalance is less than 2.4 dB, while the phase imbalance is below 7 ° up to 60 GHz and 14 ° up to 70 GHz, consuming a low-power of 29.7 mW. The second design example is a differential three-stage amplifier, incorporating the two techniques, where their combined performance achieves a gain of 54 dB and a 3-dB BW of 25 GHz, resulting in a gain-BW product (GBP) of 12.5 THz, with a power consumption of 180 mW from a 3.3-V supply. The chips are fabricated in a 0.35- μm SiGe:C bipolar technology with a ft/ fmax of 200/250 GHz.

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How to cite

APA:

Radwan, A., Weigel, R., & Kissinger, D. (2015). Broadband Circuit Techniques for Multi-Terahertz Gain-Bandwidth-Product Low-Power Applications. IEEE Transactions on Microwave Theory and Techniques, 63(11), 3701-3712. https://dx.doi.org/10.1109/TMTT.2015.2481398

MLA:

Radwan, Ahmed, Robert Weigel, and Dietmar Kissinger. "Broadband Circuit Techniques for Multi-Terahertz Gain-Bandwidth-Product Low-Power Applications." IEEE Transactions on Microwave Theory and Techniques 63.11 (2015): 3701-3712.

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