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.
The reconfigurable RF module with Zero-IF structure has been developed at 698–802 MHz band in this paper, which has advantage of lower cost and ease to switch between different 15MHz signal channel. The varactor tunable microstrip band-pass filter, which is used to implement channel selection, performs excellent out-band rejection to all the interference existing in out band. The RF receiver has been...
This paper presents an RF receiver of zero-Intermediate Frequency (IF) architecture for Cognitive Radio (CR) communication systems. Zero-IF architecture reduce the image reject filter and IF filter, so it is excellent in low cost, compact volume, and low power dissipation. The receiver employs three digital attenuator and a high gain, high linearity low noise amplifier to achieve wide dynamic range...
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.