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Low‐noise amplifier (LNA) designers often struggle to simultaneously satisfy gain, noise, stability, and I/O matching requirements. In this article, a novel design technique, tailored for two‐stage low‐noise amplifiers, is presented. The proposed design method is completely deterministic and exploits inductive source degeneration to obtain a two‐stage LNA featuring perfect input and output match together...
This work presents two LNAs, referred to in the following as LNA A and LNA B, respectively operating in the 8–10 GHz band and 10–12 GHz band; together they cover the full X-band. The power consumption results very low, being equal to 0.9 W for each amplifier. The total area for each LNA is 3.0×1.5 mm2. A very low noise figure has been achieved, namely of 1.1 dB (LNA A) and 1.3 dB (LNA B). The peak...
This contribution provides a new design methodology to implement a dispersive delay line with active elements using a distributed structure. The concept of using CRLH and D-CRLH models in a distributed transversal filter is analyzed. A demonstrator using a filtering network as D-CRLH topology is proposed in order to obtain an active dispersive delay line in GaN technology. The MMIC operates in X-band...
Classical Series-Shunt and T-shape SPDTs provide an isolation degrading in frequency which, to be adequately counteracted, may require high-value (and, therefore, large-size) resonating inductors. In this contribution, a resistive bias network is added to a T-shape SPDT instead of introducing inductors. A derived analytical description evidences that the maximum isolation can be shifted in frequency...
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