Discussion
What is cross polar discrimination?
Answer: B
Cross polar discrimination states how far below the wanted polarisation the unwanted orthogonal component lies, usually specified on boresight and over the coverage angles. It limits how closely two polarisations can reuse a frequency. Port isolation is a related but separate component specification, and rearward rejection is the front to back ratio. Distinguishing an antenna property from a component property matters when a system specification has to be apportioned between them.
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