Circular polarized active microstrip antenna for commercial GPS application
A circularly polarized microstrip antenna was investigated for a commercial land-based GPS application mainly due to its polarization potential and attractive physical properties. Both a circular and square patch design were fabricated and analyzed to investigate design and fabrication sensitiv...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2000
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/26380/ http://irep.iium.edu.my/26380/ http://irep.iium.edu.my/26380/1/TENCON2000_2.pdf |
| Summary: | A circularly polarized microstrip antenna was
investigated for a commercial land-based GPS application
mainly due to its polarization potential and attractive physical
properties. Both a circular and square patch design were
fabricated and analyzed to investigate design and fabrication
sensitivity to geometry. The effect of smaller patch size on
performance was also investigated. The inherently low gain
characteristic of the patch antenna was improved by
integrating an active circuit with the patch. At 1575.42 MHz,
gain of 16dB and input return loss, Sll > -30 dB was obtained
with the active patch. Measured performance of several patch
designs and GPS satellite acquisition data are presented. |
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