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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Girlando, G. Ragonese, E. Italia, A. Palmisano, G. |
| Copyright Year | 2003 |
| Description | Author affiliation: STMicroelectonics, Catania, Italy (Girlando, G.) |
| Abstract | The bipolar LNA design has been investigated at different operating frequencies. An innovative input matching network, which keeps the noise figure to a minimum, is presented and tested in a 900-MHz LNA. Compared to the state-of-the-art solution, the proposed approach does not impose any constraints on the bias current and/or the emitter area. Indeed, the current can be set to meet gain, linearity or power consumption requirements. In addition, the noise and the input impedance self-matching trend of a bipolar cascode topology at higher operating frequencies has been analytically studied and demonstrated by means of a 12-GHz LNA. The 900-MHz LNA exhibits a power gain of 16 dB and a noise figure of 0.8 dB by adding only one external inductor. The 12-GHz fully integrated input and output matched LNA shows a power gain of 9 dB and a noise figure of 4.7 dB. Bias currents are 2 mA and 4 mA, respectively, for the 900-MHz and the 12-GHz LNAs. |
| Sponsorship | IEEE Circuits & Syst. Soc Mahanakorn Univ. Technol |
| File Size | 315848 |
| File Format | |
| ISBN | 0780377613 |
| DOI | 10.1109/ISCAS.2003.1205538 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2003-05-25 |
| Publisher Place | Thailand |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Frequency Noise figure Impedance matching Topology Linearity Energy consumption Gain Inductors Testing Low-noise amplifiers |
| Content Type | Text |
| Resource Type | Article |
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