Shika93
Newbie level 4
I need to simulate a monopole antenna in 1-5 MHz band. At this frequency, the monopole is very long, therefore I define a simple dipole (10 cm long) in CST, analyze it, export the touchstone for Z11 and use the complex conjugate of Z parameters (in 1-5 MHz) in order to make this antenna resonate. The Z* would act like an active matching circuit. I don't need to design such circuit, since I only need the coverage pattern of this monopole installed on a structure.
Through the Combine Results in the schematic task i obtain the pattern. The problem is that conbined result is identical to the 3D results, so pattern identical.
It doesn't make sense, since the non-matched S11 is mostly 0 dB flat between 1-5 MHz, while the S11 using Z* goes below -100 dB in that band.
I would expect a different pattern.
Someone tried similar solution without defining an active circuit? I also don't know how to desing such circuit in any case.
Through the Combine Results in the schematic task i obtain the pattern. The problem is that conbined result is identical to the 3D results, so pattern identical.
It doesn't make sense, since the non-matched S11 is mostly 0 dB flat between 1-5 MHz, while the S11 using Z* goes below -100 dB in that band.
I would expect a different pattern.
Someone tried similar solution without defining an active circuit? I also don't know how to desing such circuit in any case.