Antenna Engineering for Various Applications with Low-Cost Product Manufacturing

Abstract

Antenna means for radiating radio waves, Generally the type of antenna that are used in cell phone handsets in the form of Sleeve dipoles, Whip antennas. In the sleeve dipoles we have a coaxial transmission line, dielectric insert, metal sleeve and line braid. The balancing mode can be achievable with metal sleeve also the stability of the radiation pattern. The role of the dielectric and sleeve are not only maintaining the radiation pattern stable but also walk on the matching. Whenever we have the roll over mobile it is used for getting signal as well as receive signal. Capturing of signal is possible when the mobile starts working. The system represents the capturing of omni directional signal through radiation pattern measurements. The coaxial line inner conductor is along the Z- direction, the signal is symmetric along X-Y plane. In this chapter it is proposed to develop an antenna which can be used as low-cost product in various fields. The construction of the whip antenna must be compact. A spring in the whip antenna plays a vital role as small compact antenna systems which is usually implemented for cell phones. The small compact antenna used for transmitting and receiving signals in an omni-directional system. From the cell phone perspective technology, the printed technology made a significant role which helps in use meandered monopoles used in MEMS. In historical perspective, this complicated design has to concentrate on the types of frequency ranges covered with radiation pattern also we cannot estimate current in the antenna since it is an integrated device, the placement of the other things like a battery also carries power and we have to look into the arrangements in a design in such a way that we must estimate the power dissipation throughout the antenna circuit, we have to rectify if the current which flows through the conductor carries any additional effects. The overall structure of the mobile also affects the radiation pattern. The parasitic effects, nearby circuits, placement of the other devices in a mobile affects the electromagnetic energy distribution. Similarly in all the fields the antenna can be developed with low-cost product manufacturing.