Power efficient full-duplex front-end with mixed-signal functionality for K-/Ka-band shared aperture active antenna arrays
Dissertation
Authors
Tabarani, Filipe
Referee
Schumacher, HermannPohl, Nils
Faculties
Fakultät für Ingenieurwissenschaften, Informatik und PsychologieInstitutions
Institut für Elektronische Bauelemente und SchaltungenAbstract
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.
Date created
2019
Subject Headings
Phasengesteuerte Antennengruppe [GND]BICMOS [GND]
Kommunikationssatellit [GND]
Ka-Band [GND]
MMIC [GND]
Phased array antennas [LCSH]
Artificial satellites in telecommunication [LCSH]
Amplitude modulation [LCSH]
Low noise amplifiers [LCSH]
5G mobile communication systems [LCSH]
Keywords
BiCMOS integrated circuits; MMIC power amplifiers; Doherty power amplifier; Vector modulator; Amplitude control; Phase-shifter; Phased array front-endDewey Decimal Group
DDC 620 / Engineering & allied operationsMetadata
Show full item recordCitation example
Tabarani, Filipe (2020): Power efficient full-duplex front-end with mixed-signal functionality for K-/Ka-band shared aperture active antenna arrays. Open Access Repositorium der Universität Ulm. Dissertation. http://dx.doi.org/10.18725/OPARU-32028