Research on Near Field Signal Behaviour of Localizer Antenna System
نویسندگان
چکیده
Abstract Near-field (NF) signal distribution behavior with a radius of 150 meters was studied to compare far-field (FF) characteristics. It can be found more flexible and detailed in NF than the from an monitor only single location. The origin measured value detection method on equipment introduced detail. three-dimensional model established optimized by phase analysis as well data on-site. There little difference between theoretical calculation space. change directional weakening Log Periodic Dipole Antenna (LPDA) proposed. Unequal amplitude synthesis together Fresnel loss considered research explain incredible power gain. modified 3D is good agreement results.
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ژورنال
عنوان ژورنال: Journal of physics
سال: 2023
ISSN: ['0022-3700', '1747-3721', '0368-3508', '1747-3713']
DOI: https://doi.org/10.1088/1742-6596/2449/1/012046