Title :
Printed Square Quadrifilar Helix Antenna (QHA) for GPS Receiver
Author :
Son, Wang-Ik ; Lim, Won-Gyu ; Lee, Moon-Que ; Min, Sang-Bo ; Yu, Jong-Won
Author_Institution :
Korea Adv. Inst. of Sci. & Technol., Deajeon
Abstract :
A new printed square quadrifilar helix antenna (QHA) for circular polarization (CP) is proposed and experimentally investigated for the application as a GPS receiving antenna in frequency range of about 1.575 GHz. To increase the input impedance of QHA, we use the folded inverted-F antenna as a helix. Experiment results show that the proposed antenna has a 3-dB beamwidth of more than 120deg and a front-to-back ratio of more than 15 dB. Also, the proposed antenna shows the peak gain of -2.5 dBic and the axial ratio under 0.5 dB in wanted frequency band.
Keywords :
Global Positioning System; helical antennas; microstrip antennas; polarisation; receiving antennas; GPS receiver; circular polarization; folded inverted-F antenna; frequency 1.575 GHz; helix antenna; printed square antenna; quadrifilar antenna; receiving antenna; Antenna measurements; Bandwidth; Frequency; Global Positioning System; Helical antennas; Helium; Impedance measurement; Microwave antennas; Polarization; Receiving antennas;
Conference_Titel :
Microwave Conference, 2008. EuMC 2008. 38th European
Conference_Location :
Amsterdam
Print_ISBN :
978-2-87487-006-4
DOI :
10.1109/EUMC.2008.4751699
