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 beam switched antenna using inverted F antenna for mobile terminal application in satellite communication. The antenna produces unidirectional radiation patterns in yz-plane which can be switched in two directions using a simple feeding circuit. This paper discusses the prototype antenna as well as the feeding circuit which is fabricated to demonstrate the switching of the beam...
This paper presents an analysis of MIMO antennas consisting of notch antenna and loop antenna for a wide area mobile communication system with bi-directional radiation patterns. The notch antenna radiates a horizontally polarized wave while the loop antenna radiates a vertically polarized wave. The MIMO antenna is designed for 4G applications with the resonance frequency at 3.5 GHz. The antenna produces...
In this paper, a simplified local SAR measurement method is developed. A lightweight phantom composed of wave absorber embedded of electric field probe is designed. The relative permittivity and conductivity of wave absorber is determined in order to equalize the surface electric field of the wave absorber and the standard liquid phantom. For this purpose, it is suitable to equalize the amplitude...
A simplified method for measuring the specific absorption rate (SAR) is required in order to limit the spatial-average SAR for mobile devices in Japan. In this paper, a simplified SAR measurement method involving the use of a flat-plane lightweight phantom composed of a radio wave absorber is proposed. The utility of the lightweight phantom and the feasibility of using the proposed measurement method...
In a handset MIMO (Multiple Input and Multiple Output) antenna, small number of elements and ports are desired. To achieve large channel capacity in above situations, adjustment of radiation patterns is important. We focus on analog techniques, and apply phase difference feeding to a handset MIMO antenna including human body effects. The phase difference is decided and fixed based on MEG (Mean Effective...
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.