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Re: Antenna gain in CST.
Thylacine1975,
Thanks for this information on Gain in CST. What is your opinion on efficiency. At times it is less than 1 (e.g. 0.86), where as some times it is more than 1 (e.g. 1.6873).
Re: Antenna gain in CST.
Most of us are aware of the differences between dB, dBi, dBd, dBm etc. The problem is, CST gives the result in dB, which means the power ratio is not wirh respect to a standard antenna like dipole or isotropic radiator. In CST, the gain must be defined in a certain way...
Antenna efficiency in CST shows values like: 0.7869 and 1.2693.
Do they mean 78.69% and 126.93% respectively? If so, can the antenna efficiency be more than 100%, without violating energy conservation?
How can we interpret gain in CST. For a microstrip antenna it shows 10dB gain. For a fractal antenna it shows -2.6 dB gain. How can it be 10 dB in one antenna and -2,6 dB in the other. I an interpret in two ways (and both are wrong).
1) 10dB indicates radiation & -2.6 dB absorption.
2) 10 dB...
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