The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In the article, a wideband, high-efficient, circular polarized(CP) antenna for COMPASS navigation satellite system is presented. It works at B1(1.561098GHz) and B1–2(1.589742GHz) frequency band and it can also be used for global positioning system(GPS) at L1(1.57542GHz) frequency band. The radiating elements are two crossed bowtie dipole with rectangular gaps in the middle of the bowtie elements....
A planar Archimedean-spiral antenna used in UHF ground penetrating radar system is studied. How to have an effect on frequency property for antenna by changing absorbing structures placed in reflecting cavity is analyzed. According to the analytical result, a new absorbing structure is designed and actual measurement is carried out. Finally, the azimuth pattern and radiation property for antenna is...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.