Radiating and receiving RF Electromagnetic frequency in all directions in a plane, Omni Directional Antennas can be external and in-built. These antennas are widely used in wireless devices like cellular telephone set and wireless routers. The coverage pattern of the antenna looks like a sphere. For mid to high gain performance, in-built Omni Directional Antennas are used. If higher level of gain performance is required detachable antennas are used. These Wireless Antennas are available in several designs namely rubber duck, spider, ceiling mount, etc.
A Wireless Antenna is an important component of the complete wireless network. It is responsible for sending and receiving the radio waves over different frequencies. The power gain of an antenna decides its strength. It is measured in decibels (dB). Selecting the right antenna is one of the most common problems while installing a wireless network. One must be aware of the frequencies that are compatible with the wireless and system, the signal strength required etc. Also, a comprehensive knowledge about the types of Wireless Antenna will contribute to a wiser choice.