the features are :-1.It has a wide bandwidth
2.Easily constructed
3.Has real i/p impedence.
4.Can produce circularly polarized field.
the module of a helical gear is calculated in the same way of that of a spur gear: module=pitch diameter / no of teeth the module of a helical gear is calculated in the same way of that of a spur gear: module=pitch diameter / no of teeth
helical reinforcement
Spur gears have straight teeth while helical gears have curved teeth. Generally, helical gears are usually quieter and smoother in operation, while spur gears are easier to make and much less expensive.Helical gears are stronger than spur gears.
a helical groove in a cylindrical hole (female thread), formed by a tap or lathe tool, or a helical ridge on a cylindrical bar, rod, shank, etc
an antenna that is able to be formed, or bent
it is used in space
plane reflector
Efficiency drops with added turns. Maximum efficiency is about 80% with a 3-4 turn helical and drops to about 60% at 12 turns.
antenna
Circular polarization characteristics of a helical antenna help offset the effects of spin modulation from satellites in motion, that is, the tendency for satellites to spin causing the position of their antennae to change rapidly in accordance with the spin, causing a fluctuation in the signal as received by a fixed signal on earth. Circular polarization of the earth fixed antenna reduces the fluctuating effects of the satellite's spin on the recived signal.
what is the use of dance helical communication? helical communicqationis the communication of helical
helical sequence
Of or pertaining to, or in the form of, a helix; spiral; as, a helical staircase; a helical spring.
the antenna is in the right rear side glass.
Helical Bar was created in 1919.
what is dance helical model of communication? what is dance helical model of communication?
In antenna hopping the transmit antenna is changed during the interleaving period resulting in an increased channel diversity which can be converted into a performance gain through the channel coding.