Another antenna design that uses passive elements is the Yagi antenna. This antenna, is inexpensive and effective. It can be constructed with one or more (usually one or two) reflector elements and one or more (usually two or more) director elements. Figure below shows a Yagi antenna with one reflector, a folded-dipole active element, and seven directors, mounted for horizontal polarization.
Figure is a typical pattern for a threeelement (one reflector, one active element,
and one director) Yagi antenna. Generally, the more elements a Yagi has, the higher the gain, and the narrower the beamwidth. This antenna can be mounted to support either horizontal or vertical polarization and is often used for point-to-point applications, as between a base station and repeater-station sites.
Saya seneng tentang transmisi radio, Microwave devices dan Antenna. Alumni IT Telkom lulus 2006, dan asal dari Cepu Jawa Tengah.
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