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Reactive near-field regionis defined as that portion of the near-field region immediately surrounding the antenna wherein the reactive field predominates. For most antennas, the outer boundary of this region is commonly taken to exist at a distance R< 0.62*sqrt(D^3/λ)from the antenna surface...
@volker@muehlhaus
I attached my CST file. In this have all my calculation dimension. Could you check or recalculate for help me? Thank you!
My purpose is design an Rectangular patch antenna use coaxial probe feed. F0 is 3.5. height of substrate is 1.6. substrate is FR4 lossy, epsilon is 4.3
I have tried to increase the line per wavelength. The S-parameter is deeper at resonant frequency but it is not change resonant frequency. I was thinked because dielectric of substrate change with frequency but seem this is not main cause :(
@Terminator3: Thank you so much. But my condition...
Hi all members! I'm a newbie in antenna design. I have a question hope every one help.
I'm designing a rectangular patch antenna. I used formulas in book Antenna Theory: Analysis and Design of Balanis. But when i simulate by using CST transient solver, the resonant frequency is quite...
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