parabolic antenna

A parabolic antenna is an antenna that uses a parabolic reflector, a curved surface with the cross-sectional shape of a parabola, to direct the radio waves. The most common form is shaped like a dish and is popularly called a dish antenna or parabolic dish. The main advantage of a parabolic antenna is that it has high directivity. It functions similarly to a searchlight or flashlight reflector to direct the radio waves in a narrow beam, or receive radio waves from one particular direction only. Parabolic antennas have some of the highest gains, meaning that they can produce the narrowest beamwidths, of any antenna type.^[1][2] In order to achieve narrow beamwidths, the parabolic reflector must be much larger than the wavelength of the radio waves used,^[2] so parabolic antennas are used in the high frequency part of the radio spectrum, at UHF and microwave (SHF) frequencies, at which the wavelengths are small enough that conveniently-sized reflectors can be used.

en.wikipedia.org.(2019), Retrieved November 20, 2019, from https://en.wikipedia.org/wiki/Parabolic_antenna

Hybrid Topology

The hybrid topology. Hybrid topology can be wired or wireless. The hybrid network allows the network administrator to provide the stability and speed of the data connection or bandwidth. The security risk is very low in the hybrid network, so when user send the data to other systems of other networks (except star network) then there are very fewer chances to show data to other users because of control on the network by network administrator node. This network also provides greater flexibility, where lots of computers are capable of connecting to the Internet.

References:

orosk.com(2019),orosk.com/hybrid-topology; Retrieved November 12, 2019, from https://www.orosk.com/hybrid-topology/

Tree Topology

is a special type of structure in which many connected elements are arranged like the branches of a tree. For example, tree topologies are frequently used to organize the computers in a corporate network, or the information in a database.

Reference: © 2019 Computer Hope https://www.computerhope.com/jargon/t/treetopo.htm

Ring Topology

is a network configuration in which device connections create a circular data path. Each networked device is connected to two others, like points on a circle. Together, devices in a ring topology are referred to as a ring network.

Reference: © 2019 Computer Hope https://www.computerhope.com/jargon/r/ringtopo.htm

Mesh Topology

is a type of system setup where the network device and each computer is linked, allowing for all transmissions to be dispersed when one of these connections goes down. There’s not an idea of a key switch, hub, or personal computer which functions as a central point of communication to pass the messages. Every computer not only sends its signals but also relays data from different computers. Mesh Topology is quite pricey as Its rather hard to set up the relations of the mesh topology. Every node includes a point-to-point link to another node. It’s a topology widely used for wireless networks.

Reference: akash -June 11, 2019
https://www.coursept.com/what-is-mesh-topology-advantages-disadvantages/

Star Topology

A star topology is a topology for a Local Area Network (LAN) in which all nodes are individually connected to a central connection point, like a hub or a switch. A star takes more cable than e.g. a bus, but the benefit is that if a cable fails, only one node will be brought down.

Reference: http://www.telecomabc.com/s/star.html <2005>.

Bus Topology

A bus topology is a topology for a Local Area Network (LAN) in which all the nodes are connected to a single cable. The cable to which the nodes connect is called a “backbone”. If the backbone is broken, the entire segment fails. Bus topologies are relatively easy to install and don’t require much cabling compared to the alternatives.

Source: gifsoup.comCreated Oct 17, 2016 https://thumbs.gfycat.com/UnnaturalNegligibleBantamrooster-mobile.mp4

Reference: Copyright © 2005 Telecom ABC. All Rights Reserved. http://www.telecomabc.com/b/bus-topology.html

Point to Point Network Topology

Point-to-point network topology is a simple topology that displays the network of exactly two hosts (computers, servers, switches or routers) connected with a cable. Point-to-point topology is widely used in the computer networking and computer architecture. It is also used in the telecommunications systems when we speak about the communication connection of two nodes or endpoints.

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The Computer Network Diagrams produced with ConceptDraw DIAGRAM are vector graphic documents and are available for reviewing, modifying, and converting to a variety of formats (image, HTML, PDF file, MS PowerPoint Presentation, Adobe Flash or MS Visio).

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