3 cm yagi by VK7MO
    SP2DDV pisze:

    Wydaje się że antena Yagi z powyższych fotografii to stara konstrukcja DL6WU z pasma 13cm.
    W paśmie 3cm to już tylko parabola.



    SP1N pisze:

    Jurku, ta antena nie jest z pasma 3cm. Zwróć uwagę że boom wykonany jest z płaskownika i widać tam gniazdo SMA z UT141 (które jest olbrzymie przy tej konstrukcji anteny).




"...VK5DJ’s program for DL6WU yagi design
shows that it is potentially possible to achieve a gain of 20 dBi with a 40
cm long yagi at 10 GHz. However, given that 10 GHz is well outside the
normal design parameters for a DL6WU yagi and the likelihood of
construction errors, I settled on a 80 cm 72 el yagi. This yagi should have
2.4 dB in reserve for errors. The yagi was constructed on a 1.5x15 mm
rectangular fiber glass batten (as used on sailing boats) so as to avoid
the need for boom corrections. The elements were 1 mm brass and
around 10 mm long. The driven element is a split dipole combined with a
half wave sleeve choke..."




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