Structure of GPS antenna

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　　At present, the vast majority of GPS antennas are right-handed polarized ceramic media, consisting of ceramic antennas, low-noise signal modules, cables and connectors.

　　Ceramic antenna, also known as passive antenna, dielectric antenna and PATCH, is the core technology of GPS antenna. The signal receiving ability of a GPS antenna mostly depends on the composition of its ceramic parts.

　　The low noise signal module, also known as LNA, is the part that amplifies and filters the signal. The selection of components is also important, otherwise it will increase the reflection loss of GPS signal and cause excessive noise.

　　The selection of cables should also be based on reducing reflection to ensure impedance matching.

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2023-04-11