Power efficient full-duplex front-end with mixed-signal functionality for K-/Ka-band shared aperture active antenna arrays
| Autor: | Tabarani, Filipe |
|---|---|
| Přispěvatelé: | Schumacher, Hermann, Pohl, Nils |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Phased array front-end
BICMOS MMIC power amplifiers Phase-shifter Low noise amplifiers Ka-Band Vector modulator BiCMOS integrated circuits Amplitude modulation Phased array antennas 5G mobile communication systems MMIC DDC 620 / Engineering & allied operations Phasengesteuerte Antennengruppe ddc:620 Amplitude control Artificial satellites in telecommunication Doherty power amplifier Kommunikationssatellit |
| DOI: | 10.18725/oparu-32028 |
| Popis: | This work is the first example of a full-duplex transmit/receive front-end for K/Ka-band satellite communication phased arrays. The implemented monolithic design integrates one receive and two transmit channels with a mixed-signal control unit. The channels are combined into a common port through a novel duplexer with high isolation and small area consumption. The radio frequency channels are controlled through a serial bus providing high flexibility through the configuration of the bias currents, the active channels, and the power amplifier mode of operation. Full amplitude and phase control are provided for each channel with fine granularity. The use of a Doherty power amplifier with a novel dynamic adaptive bias circuit led to a 31% reduction of the total dc array power consumption in a theoretical array with 15726 Tx and 10732 Rx elements. |
| Databáze: | OpenAIRE |
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