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   A Study and Investigation of Small Antenna Efficiency Measurement using Reverberation Chamber  
   
نویسنده AZREMI A.A.H. ,SOH P. J. ,ANUAR M.S.
منبع journal of engineering research and education - 2006 - دوره : 3 - - کد همایش: - صفحه:129 -138
چکیده    Numbers of small antennas were designed and various kinds of antennas were tested for measurement. amplitude fluctuations in signals received over mobile radio channels are typically modeled by a rayleigh distribution. the field statistics in the volume of the enclosure are shown to correspond to the rayleigh statistics found in properly functioning reverberation chambers when a sufficiently large number of modes are excited. the purpose of this paper is to show that the antenna efficiency can be measured accurately in much faster, easier and cost effectively reverberation chamber using three different antennas (two monopole antennas with attenuator and surface mount resistor, and modified folded monopole patch antenna). it also gives an investigation of the statistical characteristics in rayleigh communications channels by using reverberation chamber. scattering parameters taken from the measurement of the antenna radiation efficiency using reverberation chamber is implemented into rayleigh probability density function (pdf) model and it really shows that they are in good agreement with those of theoretically predicted rayleigh model.
کلیدواژه Reverberation Chamber ,Small Antenna ,Antenna Efficiency Measurement
آدرس Kolej Universiti Kejuruteraan Utara Malaysia (KUKUM), School of Computer and Communication Engineering, Malaysia, Kolej Universiti Kejuruteraan Utara Malaysia (KUKUM), School of Computer and Communication Engineering, Malaysia, Kolej Universiti Kejuruteraan Utara Malaysia (KUKUM), School of Computer and Communication Engineering, Malaysia
 
     
   
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