Title : 
The improvement technology of radiation pattern for GPS antenna
         
        
            Author : 
Shih-Huang Yeh ; Shao-Yu Huang ; Shyh-Tirng Fang
         
        
            Author_Institution : 
MediaTek Inc., Hsinchu, Taiwan
         
        
        
        
        
        
            Abstract : 
This paper shows a radiation pattern improvement method for GPS antenna. By adding 2 wavetraps into a mobile device at a specific location, the upper hemisphere efficiency (UHE) with wavetraps is improved from 26% to 46%. This technology does not increase any antenna area and antenna clearance. It represents the technology is useful for mobile antenna, especially in GPS/GLONASS application.
         
        
            Keywords : 
Global Positioning System; mobile antennas; planar inverted-F antennas; GLONASS application; GPS antenna; mobile antenna; mobile device; radiation pattern; wavetraps; Antenna radiation patterns; Global Positioning System; Mobile antennas; Mobile handsets; Three-dimensional displays; Antenna; GLONASS; GPS; Radiation pattern; Upper hemisphere efficiency (UHE); Wavetrap;
         
        
        
        
            Conference_Titel : 
Antennas and Propagation (ISAP), 2014 International Symposium on
         
        
            Conference_Location : 
Kaohsiung
         
        
        
            DOI : 
10.1109/ISANP.2014.7026790