TELECOMMUNICATIONS SYSTEMS
COMMUNICATION WIRELESS COMPUTING DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Directional
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Omni-directional
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Multi-directional
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Uni-directional
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Detailed explanation-1: -An omnidirectional antenna is designed to provide a 360-degree dispersed wave pattern.
Detailed explanation-2: -Directional antennas, as the name implies, focus the wireless signal in a specific direction resulting in a limited coverage area. An analogy for the radiation pattern would be how a vehicle head light illuminates the road. Types of Directional antennas include Yagi, Parabolic grid, patch and panel antennas.
Detailed explanation-3: -Highly directional antennas are used for long distant point-to-point communication. They are used to bridge networks between two buildings that are far apart. Because these antennas are high gain, they provide the most focused and narrow beam width.
Detailed explanation-4: -Yagi antennas are good for making point-to-point links in long narrow areas (for instance, connecting to a distant point in a valley) or for point-to-point links between buildings. They can also be used to extend the range of a point-to-multipoint network.
Detailed explanation-5: -An NFC-enabled device can operate under three different modes: reader/writer mode, peer-to-peer mode, and card emulation mode.