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.
This paper presents a slotted-rectangular patch antenna with proximity-coupled feed operated at dual band of millimeter-wave (mmV) frequencies, 28GHz and 38GHz. The antenna was built in multilayer substrate construct by 10-layers Low temperature Co-fiber Ceramic (LTCC) with 5 mils thickness each. The slotted-patch and thick substrate are configured to enhance the bandwidth and obtain a good result...
In the 5G system, high frequency bands over 6 GHz (6–100 GHz) will be a key factor in providing a very wide bandwidth. Because of high path losses, these bands are considered to use for small cells. To design radio links with high accuracy and evaluate 5G system performances for various scenarios, channel characteristics must be clarified. In this paper, we clarify channel characteristics in an outdoor...
A flat and low profile, wideband and high gain Substrate Integrated Waveguide (SIW) Transmission Line (TL) Butler Matrix (BM) beamforming network (BFN) for beamforming and beam-steering applications at 28 GHz (5G) is presented in this paper. Four distinct beams steering between −35° to 35° with sidelobe and return-loss level below −10 dB are generated by connecting the proposed BFN to microstrip antennas...
This paper presents the accuracy of a diffuse scattering prediction method with an effective roughness model by using detailed structural data in the form of a point cloud for high frequency band in indoor office environments. It also presents the effect of diffuse scattering on propagation characteristics. We compared measurement and prediction results in the 26 GHz band. In so doing we clarified...
This paper shows 20 GHz band channel characteristics of Massive MIMO in urban street cell environments with vehicle traffic. 10×10-Uniform Planar Array (UPA) formed with unidirectional antenna elements, facing to opposite sidewalk is used as a base station antenna, and is located on the sidewalk. The MIMO channel characteristics are then evaluated by calculating each propagation path when the receiver...
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.