How Open-Loop Transmit Diversity in Wimax?

Transmit spatial diversity is a newer phenomenon than receive diversity and has become widely implemented only in the early 2000s. Because the signals sent from different transmit antennas interfere with…

Antenna Types and Antenna Characteristics

In mobile communications two main categories of antennas used are Omni and Directional antenna here I write about antenna characteristics and use. ANTENNA TYPES Omni directional antenna These antennas are…

What is Antenna Pattern?

Here I write about antenna pattern, Front-to-rear Ratio and Upper Side Lobe Suppression in antenna. Antenna Pattern The pattern is the electromagnetic field of antenna radiation distributed by coordinate along…