"Sz Bialek wrote:
"Why the dipoles exhibit the directional pattern?".

John D. Ktaus wrote on page 3 of his 1950 efition of "Antennas": Fig.
1-3. a length chart for EM waves from the microscopic to the astronomic.
Kraus was a famous radio astromoner. He obviously believed the EM
Spectrum was continuous, so do I.

Terman begins his antenna section in his 1955 edition of "Electronic and
Radio Engineering" on page 864. He explains and illustrates how vectors
form and control the far field radiation pattern of antennas.
Polarization is the direction of the electric field in the antenna and
in the field produced by the antenna.

Dipoles have nulls at their ends and maxima perpendicular to the
conductor as Terman shows in Fig. 23 on page 865,

Today, the postman felivered my eagerly awaited copy of W2DU`s
"Reflections III" and I can`t wait to read it either.

Best regards, Richard Harrison, KB5WZI