How to Make a Point-to-Point WiFi Link

Parabolic antennas are by far the best type common type of WiFi antenna for point-to-point connections.

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Antennas are often used to enhance the Wi-Fi connectivity in areas where access to RF signals are hindered or limited. These antennas exist in a wide variecty and depending upon their transmission and reception capabilities, they are employed outside of residential and commercial buildings. One such antenna is the directional grid/parabolic antenna.

The grid parabolic antenna is only a kind of the basic parabolic antenna and to understand its features and importance, it is necessary to overview a basic parabolic antenna.

What is a Parabolic Antenna?

Like the name suggests, the parabolic antenna utilizes a parabolic reflector; the parabolic reflector is a surface having a cross-sectional parabolic shape. This helps in directing the radio waves to the receiver. Parabolic antennas are quite popular because of its high directivity; it can receive radio waves from a wide area and then direct it to one particular direction. The basic or the most commonly used parabolic antenna is the dish antenna used in homes and in government organizations. Many variations to this basic design have been introduced and one of such variation is the directional grid parabolic antenna.

Difference Between the Basic Parabolic Antenna and the Grid Parabolic Antenna?

The basic parabolic antenna has a flat surface having a parabolic shape and dimensions, whereas the grid parabolic antenna doesn’t have a flat surface but a grid of rods that makes up the surface of the antenna.

Advantages of Grid Parabolic Antenna over Basic Parabolic Antenna

The grid parabolic antenna is more advanced than the basic parabolic antenna and this is the reason that it has achieved greater utility. The few advantages that the grid parabolic antenna has over the basic parabolic antenna are:

* The grid antenna is able to transmit and receive RF signals in a tapered angle and due to this fact it is best suited for point to point network links and for long distance.

* There is minimum interference from other networks

* Provides faster link

* It also improves security especially if it is mounted at a good height.

The Connector: Parabolic antennas have an N-female connector, which is one of the most common wireless antenna connector types.

Measuring The Gain of Directional Grid/Parabolic Antenna

The directive abilities of any parabolic antenna are calculated by the dimensionless parameter; this is known as its gain. The measurement can also be classified as the ration between the power gained from the source along the beam axis to the energy gained by the isotropic antenna.

Types of directional Grid/Parabolic Antenna

Different types of directional grid parabolic antenna are now widely available because of the advantages that they render and the consumer requirements. The frequency captured or transmitted by these antennas also greatly varies and therefore can be bought according to required speifications.

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