Abstract
By increasing the number of antennas and power amplifiers connected to each in 5G system, the linearization methods like digital pre-distortion (DPD) of each power amplifier is inefficient due to antenna imperfections such as crosstalk. As a result of limited area the distance between antennas in array can vary which leads to unwanted coupling between antennas. A solution to this problem could be treating the amplifiers and antennas as one system and linearizing the main beam signal at the receiver rather than on each single power amplifier. In the work described in this paper, the whole system including amplifiers, antennas and the receiver is treated as a 2-ports system and the impacts of the above mentioned constraints are investigated.
| Original language | English |
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| Title of host publication | 2019 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC) : NORCHIP and International Symposium of System-on-Chip, SoC 2019 - Proceedings |
| Editors | Jari Nurmi, Peeter Ellervee, Kari Halonen, Juha Roning |
| Number of pages | 5 |
| Publisher | IEEE |
| Publication date | Oct 2019 |
| Article number | 8906927 |
| ISBN (Print) | 978-1-7281-2769-9, 978-1-7281-2770-5 |
| ISBN (Electronic) | 978-1-7281-2769-9 |
| DOIs | |
| Publication status | Published - Oct 2019 |
| Event | 2019 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC) - Helsinki, Finland Duration: 29 Oct 2019 → 30 Oct 2019 |
Conference
| Conference | 2019 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC) |
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| Country/Territory | Finland |
| City | Helsinki |
| Period | 29/10/2019 → 30/10/2019 |
Keywords
- Digital pre-distortion (DPD)
- Digital to Analog Converter (DAC)
- Local Oscillator (LO)
- Multiple Input Multiple Output (MIMO)
- Power Amplifier (PA)