URGENT need of explanation of END FIRE (RADIATION)

[NMare]

I found term, which claim to be a disadvantage of patch antenas.

It's "end fire" radiation or operation.
I have to translate the term into czech, but I don't think that our language has direct word for it, so could anyone please help me to understand the term? I found a few articles, but I don't think that they tried to explain the term.

 

[mauloftin]

I found term, which claim to be a disadvantage of patch antenas.

It's "end fire" radiation or operation.
I have to translate the term into czech, but I don't think that our language has direct word for it, so could anyone please help me to understand the term? I found a few articles, but I don't think that they tried to explain the term.

Zajímavý výraz - ale na¹el jsem tohle: end-fire antenna = surface-wave antenna. Dle mého názoru jde jen o to, ¾e se vlna ¹íøí podel struktury a vyzaøuje se a¾ na konci. Soudím dle antény dielektrické doutníkové - ve vlnovodu je v usti zastrèeno dielektrikum ve tvaru doutníku, a vlna se "dr¾í" v dielektrikum a vyzaøuje se a¾ na také právì konci. Tak bych to do èe¹tiny pøevedeno vidìl já

sorry dear, this is czech language

 

[Azulykit]

think of a linear array of antennas. "Broadside" radiation is along the normal to the array while "endfire" is parallel to the array. A Yagi-Uda and an LPD are examples of "endfire" arrays. One can often achieve higher gains in "endfire" configurations.

I think that the names are based on a nautical reference to a Man of War with numerous cannons along the gunwales.