Seven-element antenna array for reception GLONASS and GPS signals in frequency bands L1, L2

The GLONASS global navigation system implements frequency division multiplexing (FDMA) of two phase-shift keyed signals emitted by each satellite. This paper presents the development of an antenna array for receiving signals at frequencies intended for military purposes – 1.25 GHz (L1) and general use – 1.6 GHz (L2), and providing operation in a 360-degree horizontal plane sector. In the course of electrodynamic modeling in the computer-aided design system, a patch antenna model was developed that ensures the operation of GPS and GLONASS in the L1, L2 C/A frequency ranges and an antenna array model that ensures the operation of GPS in the L1, L2 C/A frequency ranges and GLONASS in the L1OF, L2OF frequency ranges.