Search results with tag "Radiation pattern"
The wireless channel - Stanford University
web.stanford.eduradiation pattern of the sending antenna at frequency fin the direction ; it also contains a scaling factor to account for antenna losses. Note that the phase of the field varies with fr/c, corresponding to the delay caused by the radiation traveling at the speed of light. We are not concerned here with actually finding the radiation pattern for
Antenna Patterns and Their Meaning
www.industrialnetworking.comThere are several different types and ... there can be some confusion surrounding the language used to specify antennas as well as the basic function of each type of antenna. The purpose of this white paper is to dispel the confusion surrounding antennas and their function. ... The radiation pattern or antenna pattern is the graphical ...
25. Antennas II - Brown University
www.brown.eduOther linear antennas ,, 00 0 0 ˆ 2 jtkr L cI Er t f e r The result is: where the radiation pattern is given by: cos cos cos00 22 L sin kL kL f You might not think that a simple linear antenna could give so complicated a result. But the behavior can be quite complex. e.g., the antenna pattern for a dipole of length 1.5 shows three lobes.
CHAPTER 3 ANTENNA ARRAYS AND BEAMFORMING
vtechworks.lib.vt.eduelectrically interconnected to produce a directional radiation pattern. The interconnection between elements, called the feed network, can provide fixed phase to each element or can form a phased array. In optimum and adaptive beamforming, the phases (and usually the amplitudes) of the feed network are adjusted to optimize the received signal.