Time-Modulated Antenna Array for Real-Time Adaptation in Wideband Wireless Systems—Part II: Adaptation Study
- Resource Type
- Authors
- Konrad Godziszewski; Grzegorz Bogdan; Yevhen Yashchyshyn
- Source
- IEEE Transactions on Antennas and Propagation. 68:6973-6981
- Subject
- education.field_of_study
Computer science
Population
020206 networking & telecommunications
02 engineering and technology
Interference (wave propagation)
Radiation pattern
Amplitude modulation
Antenna array
0202 electrical engineering, electronic engineering, information engineering
Electronic engineering
Electrical and Electronic Engineering
Antenna (radio)
Wideband
education
Frequency modulation
- Language
- ISSN
- 1558-2221
0018-926X
In this article, an adaptive antenna system (AAS) based on a time-modulated antenna array (TMAA) and population-based metaheuristic algorithm is presented. The algorithm is driven by the signal-to-noise ratio measurements and provides real-time adaptation of the antenna pattern. This article also addresses the issue of multiband reception with a TMAA, demonstrating that the sidebands generated from frequency-diverse signals can overlap and interfere. The effectiveness of the AAS as part of a wireless communication system is presented in three different experimental scenarios that consider gradually or rapidly changing conditions as well as the interference caused by the reception of two signals with different carrier frequencies.