Title :
A novel crank quadrifilar slot antenna for GPS hand-held receivers
Author :
Ho, Chien H. ; Huang, David W. ; Wu, Brett
Author_Institution :
Garmin Int., Olathe, KS, USA
Abstract :
This paper presents a new GPS quadrifilar slot antenna consisting of four quarter-wavelength crank slots. The four resonant crank slots are equally placed around the circumference of a cylindrical laminate and they maintain a constant phase relation to each other to form a right-hand circular polarization to receive GPS satellite signals. This new resonant helical slot antenna has a beamwidth of more than 120 degrees and a null at the back, which means an excellent capability for receiving low-elevation satellite signals and rejecting multipath interference
Keywords :
Global Positioning System; electromagnetic wave polarisation; helical antennas; interference suppression; multipath channels; radio receivers; receiving antennas; satellite communication; slot antennas; GPS; constant phase relation; cylindrical laminate; hand-held receivers; helical slot antenna; low-elevation satellite signals; multipath interference rejection; quadrifilar slot antenna; quarter-wavelength crank slots; resonant crank slots; right-hand circular polarization; Antenna radiation patterns; Global Positioning System; Helical antennas; Impedance; Laminates; Microstrip antennas; Receiving antennas; Resonance; Satellites; Slot antennas;
Conference_Titel :
Antennas and Propagation for Wireless Communications, 1998. 1998 IEEE-APS Conference on
Conference_Location :
Waltham, MA
Print_ISBN :
0-7803-4955-5
DOI :
10.1109/APWC.1998.730673
