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Receiver Front-End Architectures – Analysis and Evaluation 495 Receiver Front-End Architectures – Analysis and Evaluation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Cruz, Pedro Gomes, Hugo Carvalho, Nuno Borges |
| Copyright Year | 2012 |
| Abstract | In today's world, the exponential growth from communications between people/companies in different places (at same time), the increasing requirement to measure and control all processes, the analysis in real time, the mandatory requirement to provide of information and entertainment data to electronic devices that must be increasingly smaller and more complex, requires a continuous and nonstop searching for new technologies with greater capacity, lower cost, reduced size and improved reliability. The communications systems based on radio-frequency (RF) transmission are one of the greatest examples of this challenging demand. These systems, present in almost all equipment used in daily life as mobile phones, notebooks, wireless sensors, among other, require an increasing versatility and ability to storage of data, huge transmission rates of information and size reduction. All this need for more sophisticated equipment, along with a greater number of services available in a single equipment (preferably portable), besides the drastic size reductions from the electronic components, requires a constant search for new architectures and new materials in order to maximize the features offered. One of the most important parts from a RF system device is this receiver architecture. In receivers, the entry block has a key role in performance and reliability of the system. Any unresolved issue caused by this block, generates enormous problems in the following blocks of the receiver’s architecture. For this reason, considering the constant increase of services available for the same frequency bands, associated with the growing number of users for each service, the entry receiver architecture must be capable to resolve issues such as blocking problems, peak-to-average power ratio (PAPR) problems, among others. In other hand, must be capable to offer good selectivity, sensitivity, lower energy consumption for a small price. This chapter is organized in the following way. Firstly, a general review about the most common receiving architectures is done, emphasizing its main advantages and drawbacks. Moreover, some enhancements to these architectures are also presented and its principal benefits are explained, such as Hartley and Weaver configurations. This section ends with 25 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://cdn.intechopen.com/pdfs/9961/InTech-Receiver_front_end_architectures_analysis_and_evaluation.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
