Multiband shorted monopole antenna

A new type of multiband shark-fin antenna printed on 1.6 mm thick FR4 for automotive applications is presented. The antenna is mounted over a 1 m × 1 m-metal ground plane which represents a cars roof. The overall size of the antenna is 57 mm × 40 mm × 1.6 mm which is /6.5 × /9 × /231.5 at the lowest frequency of operation of 0.810 GHz. The antenna is in the form of a single-sided PCB and has a measured gain of 0-6.7 dBi over the entire range of 0.810-5.84 GHz covering the mobile telephone bands (GSM, DCS and PCS), both GPS bands and Bluetooth, WiFi and V2X bands on -6 dB measured reflection coefficient criteria. The measured co-polar radiation patterns in the azimuth (XZ-plane) and elevation (YZ-plane) planes depict omnidirectional radiation behaviour. © 2014 Taylor & Francis.