@inproceedings{a4bb4fc0871c447a9127732192f50723,
title = "A transportable hybrid antenna-transmitter system for the generation of elliptically polarized waves for NVIS propagation research",
abstract = "For empirical research on Near Vertical Incidence Skywave (NVIS) characteristic wave propagation, a beacon transmitter system is needed that can be programmed to emit precisely defined elliptically and circularly polarized waves at high elevation angles. This paper proposes a novel hybrid antenna-transmitter system, a combination of a synchronous dual channel transmitter and a turnstile antenna. The polarization emitted by the turnstile antenna is defined by the power ratio and phase difference of the outputs of the transmitter. Operating frequency is between 3 to 10 MHz. An automated and transportable solution is described, which can be fed by battery or solar power. Power consumption is 5.7 W.",
keywords = "NVIS, Near Vertical Incidence Skywave, antenna, characteristic wave, circular polarization, elliptical polarization, ionosphere, measurement, radio wave propagation",
author = "Witvliet, {Ben A.} and Laanstra, {Geert J.} and {Van Maanen}, Erik and Alsina-Pag{\`e}s, {Rosa M.} and Bentum, {Mark J.} and Slump, {Cornelis H.} and Roel Schiphorst",
note = "Publisher Copyright: {\textcopyright} 2016 European Association of Antennas and Propagation.; 10th European Conference on Antennas and Propagation, EuCAP 2016 ; Conference date: 10-04-2016 Through 15-04-2016",
year = "2016",
month = may,
day = "31",
doi = "10.1109/EuCAP.2016.7481549",
language = "English",
series = "2016 10th European Conference on Antennas and Propagation, EuCAP 2016",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2016 10th European Conference on Antennas and Propagation, EuCAP 2016",
address = "United States",
}