Abstract
This paper presents a phase adjustment technique for suppressing harmonic distortion in broadband RF transmitter arrays, focusing on minimizing second harmonic distortion (HD2) caused by nonlinear power amplifiers. By applying optimized phase shifts across amplifier branches, the proposed method enables destructive interference of harmonic components while preserving the desired carrier signal. Simulation and experimental results demonstrate up to 15 dB HD2 reduction with only 2.5 dB output power loss, confirming scalability and stability of the main beam. The approach offers a simple, hardware-free, and efficient solution to enhance linearity and spectral efficiency in next-generation transmitter arrays.
| Original language | English |
|---|---|
| Title of host publication | 20th European Conference on Antennas and Propagation (EuCAP) |
| Publisher | IEEE |
| ISBN (Electronic) | 9788831299121 |
| DOIs | |
| Publication status | Published - 11 Aug 2026 |
| Event | 20th European Conference on Antennas and Propagation 2026 - Dublin, Ireland Duration: 19 Apr 2026 → 24 Apr 2026 https://www.eucap2026.org/ |
Conference
| Conference | 20th European Conference on Antennas and Propagation 2026 |
|---|---|
| Abbreviated title | EuCAP 2026 |
| Country/Territory | Ireland |
| City | Dublin |
| Period | 19/04/26 → 24/04/26 |
| Internet address |
Keywords
- Array factor
- distortion
- harmonic cancellation
- linearisation
- power amplifier
- scalability
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