400-490 MHz Dipole antennas DM4 UHF(L), DM4 UHF(H)

In the conditions of increased demand for dipole four-element antennas DP4 UHF their modernization has been conducted with the aim to decrease the prime cost and to enhance the electrical reliability. As a result there were worked out the four-element all-welded antenna arrays - DM4-UHF(L) and DM4-UHF(H) which cover the range of 400-500 MHz. These antennas possess all the features of the panel antennas - high gain, broad operating bandwidth and elliptical shape of the radiation pattern. Nonseparable adder unit improves the reliability of antenna and facilitates its mounting. The construction of two such antennas placed on the opposite edges of the mast suggests the best solution at creating quasi-circular antenna system (the annular phased antenna array). A set of clamps CP-110 for mounting antenna to the mast is included into the antenna equipment and allows antenna`s reliable fixing at the telecommunication towers

VSWR diagram, DM4 UHF(L)	VSWR diagram, DM4 UHF(H)
DM4 UHF E-plane pattern	DM4 UHF H-plane pattern