Abstract
When designing the millimeter-wave antennas, for example, for the automotive radars, the problem of choosing the polarization of radiation arises. Polarization does not matter for microstrip antennas radiating along the normal. But for the antennas that form a scanning beam, (for example, phased arrays or active phased arrays) the choice of the type of polarization in the scanning plane is relevant. The same problems arise when using the MIMO technology. In radars with digital signal processing and variable delay of the received signal, a quasi-scanning beam is formed in the channels of the receiving antennas. In the cases under consideration, the radiation pattern in the scanning plane is essential. Most often, for the automotive radars, this is a horizontal plane. The paper discusses the radiation patterns of the linear microstrip antenna arrays used as part of the receiving antennas of the millimeter-wave radars. Radiation patterns are compared depending on the parameters of the antenna radome. Presence of a dielectric cover significantly distorts the form of the emitted field due to the appearance of diffracting waves at the boundary with the dielectric layer.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
