Cell Weighting and Gate Inductive Peaking Techniques for Wideband Noise Suppression in Distributed Amplifiers
| Autor: | Saeed Saeedi, Baset Mesgari, Abumoslem Jannesari |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Noise measurement Noise reduction 020208 electrical & electronic engineering Distributed amplifier 020206 networking & telecommunications Topology (electrical circuits) 02 engineering and technology Noise figure Topology Noise (electronics) law.invention law 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Wideband Resistor |
| Zdroj: | IEEE Transactions on Circuits and Systems I: Regular Papers. 67:4507-4520 |
| ISSN: | 1558-0806 1549-8328 |
| Popis: | This paper presents a noise suppression method to improve noise figure (NF) performance of a distributed amplifier (DA) in a broad frequency range. In the proposed DA topology, the input matching resistor, which remarkably increases the NF, is replaced by a common-gate (CG) stage. The noise contribution of the CG terminating network is suppressed by employing a cell weighting plan in conjunction with a gate-inductive peaking technique. Analytical methods and a circuit implementation in a $0.18~\mu \text{m}$ CMOS technology verify that the proposed noise suppression technique provides lower NF compared with the conventional DA (CDA) topology in the entire frequency range. This is in contrast to other reported low-noise DA topologies which decrease the noise contribution of the input matching element only in a limited range of frequencies. The measurement results demonstrate an average gain of 9.5 dB in 1-20 GHz frequency range, a noise figure less than 4 dB and 5.8 dB up to 16 GHz and 20 GHz, respectively, and an average IIP3 of 5.3 dBm. The chip occupies an area of 1.2 mm2, including pads, and consumes a current of 24 mA from 1.8 V supply. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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