Simple Basic behind Antenna Systems for RF
Any Antenna may be Omni antennas or Directional antenna. Omni antennas provide approximately the same amount of profit throughout the entire 360-degree horizontal pattern. Directional antenna, sometimes referred to as sector antennas have the maximum winnings in one direction from the backside, usually 15-25 DB below the maximum benefit.
Antenna gain is a function of the horizontal template, template, vertical and the number of elements that make up the antenna array. The number of elements will be dictate the size of the antenna. Link to vertical and horizontal beamwidths as the number of degrees between the points on the template, which is down 3 dB of maximum benefit.
When selecting the antenna should be aware of the following points:
• The size and weight of the load will affect the antenna tower or the ability to place the antenna in the optimum position.
• Generally, antenna models with narrower horizontally or vertically beamwidths will lead to higher antenna gain, assuming a similar length.
• Vertical and horizontal beamwidths will have an effect on field performance of a site midway between the sectors.
IN large horizontal beamwidths would lead to a duplication of the signal between the sectors. Beamwidths impact on noise, saw (thus affect the number of cells capacity) and with the proper signal level specific area.
• Front to back ratio is also affected by the number of antennas interference seen on other sites and the ability to minimize pilot pollution.
Horizontal and vertical templates provided by the selected antenna needs to be verified to ensure that there will be coverage in the area you want. For example, as a means of improvement direct antenna gain, vertical beamwidth can be reduced. In some situations, the reduction in vertical beamwidth can result in poor signal strong Tower near the site of the antennas, excessive growth of the area to be covered.
Simple Basic Behind Antenna Systems for RF
An antenna system in RF is what lets your device send and receive signals over the air. It’s like the ear and mouth of your phone or router, picking up signals from the base station and sending data back.
You and I need to know one basic thing—antennas convert electrical signals to radio waves, and vice versa. If I send a message from my phone, the antenna changes that into a wave, shoots it out, and the tower picks it up.
There are two main types you deal with: omnidirectional, which sends signals in all directions, and directional, which focuses signal in one direction. If you’re in a house, you might use an omni. But if I’m targeting a specific tower far away, I’d use a directional one.
The whole system includes the antenna, cables, and connectors. If any part is weak or misaligned, the signal drops. For example, if I don’t align a directional antenna properly, I get poor performance even if the signal is strong nearby.