Antenna Measurement: Horns, Frequency, & Gain Modeling

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SUMMARY

This discussion focuses on the measurement challenges associated with horn antennas operating between 800 MHz and 2.5 GHz, specifically regarding gain measurements affected by a ringing effect due to the distance between the antennas. The participants suggest that this ringing can be modeled using a Fourier series, which would account for the multipath reflections occurring between the two antennas. The conversation emphasizes the significance of understanding the spatial relationship (distance D) between the antennas to accurately model and mitigate these effects.

PREREQUISITES
  • Understanding of horn antenna design and operation
  • Knowledge of gain measurement techniques in RF applications
  • Familiarity with Fourier series and their application in signal processing
  • Concept of multipath propagation in antenna systems
NEXT STEPS
  • Research the application of Fourier series in modeling antenna gain measurements
  • Explore techniques to mitigate multipath effects in RF measurements
  • Study the impact of antenna spacing on gain and reflection characteristics
  • Investigate advanced horn antenna designs for improved performance
USEFUL FOR

RF engineers, antenna designers, and researchers involved in antenna measurement and modeling, particularly those focusing on gain measurement techniques and multipath effects in RF systems.

lisawoods
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I have 2 horn antennas facing each other each has a size A & B respectively they operate at a frequency 800MHz to 2.5 GHz. they are a distance D apart. when making gain measurments there is a ringing effect which changes as the horns are moved futher or closer apart. Does anyone know if this effect can be modeled as a Fourier series
 
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A Fourier series of what? Sounds like multipath...
 
antenna

the Fourier series would model the effect of the reflections between to the horns.
 

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