RF Receiver Architecture State of the Art

Broadband Direct RF Digitization Receivers

“…Dans la topologie sélectionnée [102], représentée sur Il est similaire au démonstrateur technologique que nous avons présenté dans [103], mais est maintenant un produit qui comprend la réception simultanée de 24 canaux. Cela impose la nécessité d'un sérialiseur à grande vitesse afin de transférer des données vers un SoC ou FPGA avec une faible puissance et un nombre limité de broches.…”

“…In the selected topology, described in the patent [102], and shown in Fig 5, the fully-integrated variable tilt equalizer uses a single 5 nH inductor configured either in a series or a parallel resonator, and equalizes over a 1 GHz bandwidth. In both configurations, the LC circuit resonates at 1.1 GHz.…”

Optically Tunable Microwave Frequency Downconversion Based on an Optoelectronic Oscillator Employing a Phase-Shifted Fiber Bragg Grating

“…Microwave frequency downconversion, which converts a radio-frequency (RF) signal to an intermediate frequency (IF) or a baseband signal, is an essential function in RF receivers for various applications such as wireless communication, electronic reconnaissance, and radar. In conventional microwave receivers, electronic mixers are generally employed to achieve frequency downconversion in order to match the input bandwidth of the back-end analog-to-digital converters [1], [2]. The major drawback of electronic mixers is the limited bandwidth which cannot meet the ever-increasing requirement of wideband applications [3]- [5].…”