Compact five-band antenna array with vertical polarization

A vertical polarized antenna array operating in frequency bands 423–443, 840–930, 1525–1625, 2400–2500 and 5725–5850 MHz is presented. The radiators are made in a shape of stacked patches excited by metal strips located under the radiating patches. The radiating patch of the lowest frequency band 423–443 MHz is made in the form of a printed circuit board and acts as a reflector for radiators operating at other frequency bands. Such two-storey structure provides small dimensions of the antenna array. The results of simulation are compared with the measured radiation patterns and S parametes of the manufactured antenna array.