Open circuit in a waveguide and in a coaxial cable

eliotsbowe

Hello, I've heard that if an coaxial cable is cut, it's not able to radiate an electromagnetic field in the open space; besides I know that an open waveguide can radiate, and a horn antenna is a typical example of this.
May someone please explain the reason of the two different behaviours?

Thanks in advance.

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eliotsbowe	Open circuit in a waveguide and in a coaxial cable Tweet Hello, I've heard that if an coaxial cable is cut, it's not able to radiate an electromagnetic field in the open space; besides I know that an open waveguide can radiate, and a horn antenna is a typical example of this. May someone please explain the reason of the two different behaviours? Thanks in advance.