Circularly polarized patch antenna with an L-shaped probe fed by a microstrip line

✍ Scribed by W. K. Lo; J.-L. Hu; C. H. Chan; K. M. Luk

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 120 KB
• Volume: 24
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/(sici)1098-2760(20000320)24:6<412::aid-mop15>3.0.co;2-r

✦ Synopsis

A circularly polarized CP circular patch microstrip antenna with a cross slot using an L-shaped probe fed by a microstrip line is designed and measured. With the single L-probe, the impedance bandwidth, the axial-ratio bandwidth, and the gain bandwidth are 27, ( ) 3.47, and 26%, respecti¨ely, for the left-hand circular polarization LHCP excitation, which pro¨ides a good impro¨ement o¨er the one with other single-point feeding techniques. This microstriprL-probe feed can be extended to the design of a CP antenna array using sequential rotation.