Choosing the right GPS antenna for your application can be a bit confusing, but I can help clarify some of the key considerations.
Firstly, the polarization of the antenna refers to the orientation of the electromagnetic wave that it transmits or receives. Linearly polarized antennas have their electromagnetic fields oriented in a straight line, while circularly polarized antennas have their electromagnetic fields rotating in a circular motion. RHCP (Right-Hand Circular Polarization) is a type of circular polarization, which is commonly used in GPS applications.
In terms of whether to choose a patch antenna or a quadrifilar helix antenna, it really depends on the specific requirements of your application. Patch antennas are typically smaller and have a narrower beamwidth, making them ideal for applications that require a high level of accuracy in a specific direction. Quadrifilar helix antennas, on the other hand, have a wider beamwidth and are better suited for applications that require a broader coverage area.
Regarding the mounting location on top of a switch cabinet made of aluminum, it's important to keep in mind that the antenna should be placed in a location that has a clear line of sight to the GPS satellites. Ideally, the antenna should be placed outside of the cabinet or in a location where the aluminum won't interfere with the GPS signal. 먹튀사이트 If this is not possible, then you may need to use a GPS repeater or an external antenna mounted on the roof of the building to ensure proper GPS reception.
In summary, if your application requires high accuracy in a specific direction, you may want to consider a linearly polarized patch antenna. However, if you need broader coverage, then a RHCP quadrifilar helix antenna may be a better choice. Regardless of the type of antenna you choose, make sure to mount it in a location with a clear line of sight to the GPS satellites.