Now navigation antennas are becoming more and more widely used in our lives, such as mobile phones, electronic watches, automobiles, navigation devices, etc., and for the purpose of application, navigation antennas are also divided into many types. Such as built-in antenna, GPS antenna, external antenna, timing antenna, etc. Recently, some friends have asked what is the difference between pcb antenna and ceramic antenna, many people do not know, the following small series to tell everyone:

       Ceramic antenna
       Difference 1: define different
       The ceramic antenna uses GPS satellites to achieve navigation and positioning, and the user's receiver's main task is to extract the pseudo-random noise code and data code in the satellite signal to further solve the position, velocity and time (PVT) of the receiver carrier. Wait for navigation information. Its type can be divided into a block ceramic antenna and a multilayer ceramic antenna.
       The PCB antenna refers to the part on the PCB for wireless reception and transmission. It is generally set on the Bluetooth or wireless transmission module. Its routing generally has a space to prevent the signal from being scattered and affecting the receiving effect; Make the omnidirectional antenna directional.

       Difference 2: Different characteristics
       In terms of dielectric constant, ceramic antennas are higher than pcb antennas, so the use of ceramic antennas can effectively reduce the size of the antenna. In terms of dielectric loss, the ceramic dielectric also has a lower dielectric loss than the pcb board, so it is very suitable for use in Bluetooth modules with low power consumption. The size of the ceramic antenna is generally equivalent to the 1210 package, and the effect is stronger than the on-board antenna. When designing the pcb antenna, it is necessary to have a clear space around it. There must be no metal. The original metal with metal should be grounded reliably. Pay special attention to the fact that copper cannot be applied.