An Envelope Correlation Formula for(N,N)MIMO Antenna Arrays Using Input Scattering Parameters, and Including Power Losses
نویسندگان
چکیده
منابع مشابه
An Envelope Correlation Formula for (N ,N)MIMO Antenna Arrays Using Input Scattering Parameters, and Including Power Losses
The scattering parameter formulation for the envelope correlation in an (N ,N) MIMO antenna array has been modified to take the intrinsic antenna power losses into account. This method of calculation provides a major simplification over the use of antenna radiation field patterns. Its accuracy is illustrated in three examples, which also show that the locations of the correlation minima are sen...
متن کاملAn Exact Envelope Correlation Formula for Two-Antenna Systems Using Input Scattering Parameters and Including Power Losses
The calculation of the envelope correlation for a two antenna element system in terms of the system’s scattering parameters is modified to include power losses. This new expression should reduce the complexity in predicting the spatial envelope correlation, and simplify antenna design where a low envelope correlation is required. This represents a major simplification with respect to the conven...
متن کاملEstimation of Signal Correlation in Antenna Arrays
The correlation between signals received with different antenna elements is an important parameter in an adaptive array. In this paper it is shown that when the signal DOA distribution is uniform the signal correlation can be calculated using measured S-parameters of the antenna input ports. When the spread of the angle of arrival is known, the scattering parameters allow also to estimate the c...
متن کاملAn Active Input Current Waveshaping with Zero Switching Losses for Three-Phase Circuit Using Power Diode
In this paper a zero voltage switched active network (Fig. 1) which can be used in conjunction with single-phase or three-phase ac to dc diode rectifiers is presented. It is shown that application of the proposed switching network in threephase ac to dc boost converter yields zero switching losses while maintaining a unity input power factor. Active network capacitor, Cs, diodes D7, and D8, mai...
متن کاملPattern Correlation and Mismatch in Two-element Antenna Arrays
In an antenna array the element pattern correlation and the array matching depend on each other. For lossless two-element arrays the general formulation of the dependency of array matching on pattern correlation is given and solved numerically for some basic cases. Array matching is given as a characteristic mismatch coefficient and as the mean relative reflected power.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Antennas and Propagation
سال: 2011
ISSN: 1687-5869,1687-5877
DOI: 10.1155/2011/421691