Rg174 external gsm gps antenna for android phone

How is GPS Antenna classified?
GPS Antenna for Car GPS Antenna SMA is divided into vertical polarization and circular polarization in terms of polarization.

The effect of circular polarization is better than that of vertical polarization, so generally GPS Antenna Fakra will use circular polarization

GPS antenna is divided into built-in antenna and external antenna in terms of placement.

The mounting position of the Inside GPS Antenna affects the antenna signal reception. The reason for the shape of the early mobile phone is that the antenna is often used, and the EMI does not affect it, and the star collection effect is very good. However, with the intelligentization of mobile phones, the pursuit of compactness and beauty, GPS antennas are mostly built-in. At this time, the antenna must be above all metal devices, and the shell must be plated and grounded well, away from EMI interference sources.

From the aspect of power supply, GPS antenna is divided into active and passive.

The external GPS is an active antenna, and the passive antenna does not contain an LNA amplifier, just the antenna body.