Proceedings ArticleDOI
Broadband Low Noise Amplifier with High Linearity for Software-Defined Radios
Munenari Kawashima,Yo Yamaguchi,Kenjiro Nishikawa,Kazuhiro Uehara +3 more
- pp 323-326
TLDR
In this paper, the authors proposed a broadband low-noise amplifier with high linearity performance using a bias circuit with high impedance, which achieved an S21 of 20plusmn1 dB and an S11 of less than -9 dB.Abstract:
We propose a broadband low noise amplifier with high linearity performance. The amplifier achieves broadband, low noise performance and high linearity using a bias circuit with high impedance. The bias circuit consists of an inductor, a resistor, and a current source. The circuit obtains high impedance using a high resistive component. From 0.8 to 5 GHz, the low noise amplifier shows an S21 of 20plusmn1 dB and an S11 of less than -9 dB. The noise figure is 1.5-2.7 dB for frequencies from 0.5 to 5 GHz. The output 1-dB compression point at 2 GHz is +6.3 dBm.read more
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Signal Separation and Reconstruction Method for Simultaneously Received Multi-System Signals in Flexible Wireless System
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White Space Communication Technologies: Adaptable transceivers for white space technologies
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References
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The software radio architecture
TL;DR: A closer look at the canonical functional partitioning of channel coding into antenna, RF, IF, baseband, and bitstream segments and a brief treatment of the economics and likely future directions of software radio technology are provided.
Journal ArticleDOI
Broadband RF stage architecture for software-defined radio in handheld terminal applications
H. Tsurumi,Y. Suzuki +1 more
TL;DR: This article first defines the conceptual scheme of a handheld software defined radio (SDR) terminal, and then describes how the direct conversion principle is applied to the SDR.
Journal ArticleDOI
A low supply voltage SiGe LNA for ultra-wideband frontends
TL;DR: In this paper, a low-power low-noise amplifier (LNA) for ultra-wideband (UWB) radio systems is presented, which uses peaking and feedback techniques to optimize its gain, bandwidth and impedance matching.
Proceedings ArticleDOI
15 GHz wideband amplifier with 2.8 dB noise figure in SiGe bipolar technology
TL;DR: In this paper, the authors present a wideband amplifier with 12 dB gain and a 3-dB bandwidth of 15 GHz, and the noise figure is 2.8 dB for frequencies up to 10 GHz and 4 dB at 15 GHz.
Journal ArticleDOI
A 6.5-kV ESD protected 3-5-GHz ultra-wideband BiCMOS low noise amplifier using interstage gain roll-off compensation
TL;DR: In this paper, an electrostatic discharge (ESD)-protected ultra-wideband low-noise amplifier (LNA) is presented, which features an interstage matching network for gain roll-off compensation to achieve a flat gain over its passband.
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