Month: March 2022

Portable Yagi-Uda satcom antenna

Assembled Yagi-Uda antenna for UHF satcom

For covering wide frequency range the Yagi-Uda antenna is not best choice. NanoVNA came with quite cool design which benefits from resonation between radiator and first director causing lowering gain but making it very wideband.

MMANA model of the antenna and currents on elements.
Radiation pattern of the antenna in vertical and horizontal plane.
Unusually wide frequency range of Yagi-Uda antenna.
Impedance of the antenna across 240 to 320 MHz.
Detail of BNC connector feeding dipole.
Disassembled antenna.
satcom_ok1bt_yagi_driven_element_15x15_8mmDownload
satcom_ok1bt_yagi_tube_holder_15x15_8mmDownload
satcom_ok1bt_yagi_profile_capDownload
satcom_ok1bt_yagi_tube_capDownload
NanoVHF_yagi_uda_4el_satcom_d8mml.maaDownload