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 this paper, a conventional mushroom-type EBG unit cell is made compact by etching a C-slot at its conducting surface. Further, the C-slotted mushroom-type EBG unit cell is coupled with a microstrip line using a novel groove-coupling technique to design a notch filter. The arrangement has achieved in the reduction of the electrical size of the mushroom type EBG unit cell by 46.15% and create a stop...
This paper presents a novel complementary CPWfed slotted microstrip patch antenna for operation at 2.4 GHz, 5.2 GHz and 6.3 GHz frequencies. The primary structure consists of the complementary split ring resonator slots on a patch and the design is fabricated on FR-4 epoxy substrate with substrate thickness of 1.6 mm. The described structure lacks the presence of a ground plane and makes use of a...
One major problem in mixer based RF down-converters and superheterodyne receivers is the presence of image frequencies. There have been a number of approaches, both in analog and digital domain, to address this issue. Of late, attempts have been made to integrate the image rejection filter with the antenna so that there is no chance of image frequencies being received. Complementary split ring resonators...
Various approaches have evolved for the improvement of the performance of microstrip antennas like modifying geometry of the patch, using multilayered substrate, cutting out slots of different shapes from the patch or the ground plane etc. Of late, metamaterial inspired designs are receiving greater attention. The present work focuses on a combination of traditional approach of slot based design and...
Microstrip antennas have received a wide attention all over the world in the past few decades with the fast development of portable electronic gadgets like mobile phones, laptops etc. The sizes of these devices are shrinking day by day and functionalities are becoming wider. However, the size of the microstrip antenna often puts a limit to the extent to which the size of a device can be. Half-wavelength...
Speech signals often get degraded by various types of noise at different stages of speech recording, processing and communication systems. One major source of noise is the background noise, which highly degrades the speech signal quality and decreases the listening comfort. Speech enhancement is a section of digital speech processing in which the interfering noise is eliminated from the speech and...
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.