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Software defined radios are developed with the aim to demodulate any standard. However, constraints make this practically unfeasible. A sampled analog signal processor was developed performing a fast Fourier transform using voltage samples. The idea is to process any RF signal 0 to 5 GHz using the fast Fourier transform to obtain frequency shifting and filtering, presenting a new approach to bring...
This article reports the design of a switchable low‐noise power amplifier (LNPA) intended for an active backscatter tag used in microwave localization and positioning applications. Due to system specifications, the backscattering transponder requires an amplifier having both low‐noise and high‐output power characteristics at the same time. Low‐noise amplifier and PA design considerations are both...
This paper presents the current status and trends in research on Full Software Radio (FSR). Concerning the receiver path after defining Software Defined Radio (SDR) versus FSR a new version of the Sampled Analog Signal Processor (SASP) is presented and experimental results are discussed. The new version doubles the signal bandwidth while the power consumption is reduced to less than 100 mW. For the...
A new fractional frequency divider is presented. It is based on a random dithering of the phase error. The divider output spectrum is cleaned from any fractional spurious tone. Moreover, as no noise shaping is applied, the proposed solution can be implemented in frequency synthesizers like Phase Locked Loops (PLL) without implication on the loop filter.
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