Topic
L band
About: L band is a research topic. Over the lifetime, 674 publications have been published within this topic receiving 4570 citations.
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TL;DR: A statistical narrowband mobile satellite maritime propagation channel model based on empirical observations using GPS measurements from a receiver onboard a vessel in different sea conditions, which is fully parameterized for all possible elevation angles.
Abstract: In this article, we present a statistical narrowband mobile satellite maritime propagation channel model at the ${L}$ -band based on empirical observations using GPS $C/N_{0}$ measurements from a receiver onboard a vessel in different sea conditions. The model is fully parameterized for all possible elevation angles. In the measurements, we have used a low-gain, 6.2 dBi, hemispherical antenna. The parameters provided, thus, are valid for this and similar antenna gains.
3 citations
3 citations
01 Mar 2003
3 citations
TL;DR: The paper describes how satellite systems are being developed in Canada under these new Regulations and how the 12-GHz band will be used in Region 2.
Abstract: WARC-79 made significant changes to how the 12-GHz band will be used in Region 2. In particular, it decided that the 12-GHz band in Region 2 will extend upwards the 12.7 GHz, and that the upper portion of the overall band (11.7 to 12.7 GHz), will be planned at the 1983 Regional Conference. The paper describes these allocation changes and how satellite systems are being developed in Canada under these new Regulations.
3 citations
TL;DR: In this paper, a circularly polarized printed linear antenna array, fabricated in low cost FR4 substrate and suitable for L-band satellite data terminals, is presented, where a three times bandwidth increase compared to a single notched disc element is demonstrated through the utilization of aperture feeding and sequential rotation.
Abstract: A circularly polarized printed linear antenna array, fabricated in low cost FR4 substrate and suitable for L-band satellite data terminals is presented. The main contributions of the article are twofold. First, a three times bandwidth increase compared to a single notched disc element is demonstrated through the utilization of aperture feeding and sequential rotation. Second, array configurations with small separations that can arise in situations with space constraints are investigated. Elements with modified dimensions were found to be a simple and efficient remedy that mitigates the effect of mutual coupling. The suitability of the array for its use in L-band satellite data terminals with reduced pointing requirements is also discussed. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2015–2019, 2013
3 citations