Multifunctional Wideband Antenna for GNSS Application

In this paper, a multifunctional wideband global satellite system (GNSS) antenna is introduced, which is used for navigation or surveying high-precision area, the fourth-generation(4G) mobile and Wi-Fi communication. By using the coupled feeding formed by arc- T -shaped patch, wide bandwidth is obtained. Six short-circuit pins are loaded around the top layer radiation patch for enhancing the coupling between bottom layer and top patches. The antenna consists of a low-profile navigation element on top substrate and multiple mobile communication elements uniformly distributed on the edge of the bottom substrate. The simulated gain and AR of the GNSS antenna are larger than 4.7dBi and less than 1.4dB from 1.165 to 1.62 GHz, respectively. And the simulated gain of the GNSS antenna is larger than 4dBi from 1.135 to 1.735 GHz. The mobile communication elements can cover 830–940, 1800–2300, 2550–2700 and 2400–2700, 5100-5800MHz, respectively.