hat
④ laprès la estrikti epi l ap travay prensip kapab divize an fil antèn ak antèn ak sou sa. Dekri a karakteristik paramèt nan antèn la modèl, dirèktivite, Benefis, enpedans opinyon, efikasite radyasyon, Polarization ak frekans
eng
④ Press the structure and working principle can be divided into wire antennas and antenna and so on. Describe a characteristic parameter of the antenna pattern, directivity, gain, input impedance, radiation efficiency, polarization and frequency