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 frequency band for T-DMB (terrestrial digital multimedia broadcasting) system in Korea is assigned to the VHF channel 7~13 (174 MHz~216 MHz) and channel 8 and channel 12 are used in Seoul. The length of the lambda/4 monopole with an infinite ground is about 38 cm to make a resonance at 200 MHz. Generally, meander line, high dielectric constant material and parasitic elements have been used to...
A multiple band-notched planar monopole antenna for multi-band wireless systems is presented. The proposed antenna consists of a wideband planar monopole antenna and the multiple U-shape slots, producing band-notched characteristics. In order to generate two band-notched characteristics, we propose that three U-shape slots are required. This technique is suitable for creating ultra-wideband (UWB)...
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.