Final Remarks Concerning Transmitting, Receiving, and Scattering Radiation Pattern of Finite Arrays

4 Final Remarks Concerning Transmitting, Receiving, and Scattering Radiation Pattern of Finite Arrays 

Example I illustrated that the scattering pattern could essentially have 

Example II showed that the transmit and scattering pattern in general are quite different and complicated by the fact that the backscatter section is highly dependent on Zl while the forward sector is basically independent of Zl. 

Examples II and III showed that two antennas can basically have the same transmit pattern but significantly different scattering patterns. 

We should finally note that the antenna in Example III could in some cases produce zero backscatter in a few directions by adjusting Zl. As noted in Section 2.3, this destructive interference method is not recommended. 

---