T-LINC Architecture with Digital Combination and Mismatch Correction in the Receiver

Emilio Jose Martinez Perez*, Feridoon Jalili, Ming Shen, Jan H. Mikkelsen, Ole Kiel Jensen, Gert Frølund Pedersen

*Kontaktforfatter

Publikation: Konferencebidrag uden forlag/tidsskriftPaper uden forlag/tidsskriftForskningpeer review

Resumé

In this paper a novel outphasing amplification architecture, Transmitted Linear Amplification with Nonlinear Components (T-LINC), is proposed and evaluated. Different from conventional LINC techniques that combine the outphased signals before transmission, the proposed architecture transmits both outphased signals and implements the signal combination in the base-band domain at the receiver side. By digitally combining the signals in the receiver, it is easier to correct gain or phase mismatch existing between the two outphased signals, without adding any extra complexity in the transmitter. Additionally, a power combiner is no longer required in the transmitter. Simulations show that the proposed technique is able to correct transmitter gain and phase imbalance and achieve an ACPR level of -42 dBc and EVM below 2.5 % for 16-QAM signals. Index Terms—Digital combination, digital mismatch correction, linear amplification with nonlinear components (LINC), outphasing amplification, Transmitted LINC (T-LINC).
OriginalsprogEngelsk
Publikationsdato30 aug. 2019
Antal sider5
StatusUdgivet - 30 aug. 2019

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Transmitters
Nanosatellites
Spacecraft
Satellites
Industry

Citer dette

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abstract = "With the recent popularization of nanosatellite technologies, the industry is putting a notable effort into increasing the performance of the systems integrated in these small spacecrafts. In this paper, a novel outphasing amplification architecture to enhance the power efficiency of a satellite downlink is presented and evaluated. Based on a conventional LINC (LInear amplification with Nonlinear Components) architecture, the proposed architecture transmits both outphased signals, and carry out the signal combination in the receiver in the base-band domain. The resulted architecture takes advantage of an efficient signal amplification given by the nonlinear power amplifiers, while the elimination of the signal power combiner from the transmitter, increases the overall power efficiency. We outline and analyze those elements that restrict the performance of this novel approach. The simulations and laboratory experimentation probes the proposed architecture is feasible, and able to improve a ?? {\%} the power efficiency, compared to a classic transmitter front-end architecture.",
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T-LINC Architecture with Digital Combination and Mismatch Correction in the Receiver. / Perez, Emilio Jose Martinez; Jalili, Feridoon; Shen, Ming; Mikkelsen, Jan H.; Jensen, Ole Kiel; Pedersen, Gert Frølund.

2019. 1-5.

Publikation: Konferencebidrag uden forlag/tidsskriftPaper uden forlag/tidsskriftForskningpeer review

TY - CONF

T1 - T-LINC Architecture with Digital Combination and Mismatch Correction in the Receiver

AU - Perez, Emilio Jose Martinez

AU - Jalili, Feridoon

AU - Shen, Ming

AU - Mikkelsen, Jan H.

AU - Jensen, Ole Kiel

AU - Pedersen, Gert Frølund

PY - 2019/8/30

Y1 - 2019/8/30

N2 - With the recent popularization of nanosatellite technologies, the industry is putting a notable effort into increasing the performance of the systems integrated in these small spacecrafts. In this paper, a novel outphasing amplification architecture to enhance the power efficiency of a satellite downlink is presented and evaluated. Based on a conventional LINC (LInear amplification with Nonlinear Components) architecture, the proposed architecture transmits both outphased signals, and carry out the signal combination in the receiver in the base-band domain. The resulted architecture takes advantage of an efficient signal amplification given by the nonlinear power amplifiers, while the elimination of the signal power combiner from the transmitter, increases the overall power efficiency. We outline and analyze those elements that restrict the performance of this novel approach. The simulations and laboratory experimentation probes the proposed architecture is feasible, and able to improve a ?? % the power efficiency, compared to a classic transmitter front-end architecture.

AB - With the recent popularization of nanosatellite technologies, the industry is putting a notable effort into increasing the performance of the systems integrated in these small spacecrafts. In this paper, a novel outphasing amplification architecture to enhance the power efficiency of a satellite downlink is presented and evaluated. Based on a conventional LINC (LInear amplification with Nonlinear Components) architecture, the proposed architecture transmits both outphased signals, and carry out the signal combination in the receiver in the base-band domain. The resulted architecture takes advantage of an efficient signal amplification given by the nonlinear power amplifiers, while the elimination of the signal power combiner from the transmitter, increases the overall power efficiency. We outline and analyze those elements that restrict the performance of this novel approach. The simulations and laboratory experimentation probes the proposed architecture is feasible, and able to improve a ?? % the power efficiency, compared to a classic transmitter front-end architecture.

M3 - Paper without publisher/journal

SP - 1

EP - 5

ER -