Integrated Ultra-Low Noise Amplifiers by Wynand Lambrechts (.ePUB)+
File Size: 159.6 MB
Integrated Ultra-Low Noise Microwave Amplifiers by Wynand Lambrechts, Saurabh Sinha, Abadahigwa Bimana
Requirements: .ePUB, .PDF reader, 159.6 MB | True PDF, True EPUB
Overview: This book presents the theoretical foundations of low-noise amplifier (LNA) design, with a particular focus on ultra-low-noise amplifiers. It introduces various noise types and sources in semiconductors, examines semiconductor processes (e.g., SiGe, HEMT, MOSFET, SOI, and MMIC) for both passive and active components, and explains noise and impedance-matching techniques, noise measurement methods, possible topologies for ultra-low-noise amplifiers, design and optimization approaches, and relevant design tools. The proposed methodologies are supported by detailed design examples and case studies, including applications for the square kilometer array (SKA). LNAs are found in several electronic applications that have shaped modern life, but high-performance LNAs are mostly used in wireless receiver systems as the first stage of a receiver chain, because they can amplify weak antenna signals with little noise degradation. They are found in mobile and fixed communication networks, such as 5G networks and wireless LANs, as well as in user terminals. For smartphones, several LNAs are generally required in one device, depending on frequency bands and applications available. Handheld user terminals for satellite-based radio navigation systems require LNAs for the optimum reception of satellite signals. Some automotive applications, such as collision-avoidance radars, and several defense applications, including radars and drones, require LNAs. In fact, before the explosion of communication capacity, microwave technology was almost exclusive to defense applications. LNAs enhance the received signal for further processing in radio astronomy and deep space applications. This enhancement is mostly required because signals from space can be extremely weak. In communications networks, signal enhancement is more important in today’s networks because, as the data throughput increases and the transmission power decreases, the impact of noise on performance becomes more critical.
Genre: Non-Fiction > Tech & Devices
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