Advanced Design of Planar Spiral Antenna with Novel Feeding Network

Advanced Design of Planar Spiral Antenna with Novel Feeding Network

In this paper, a planar type four-arm rectangular spiral antenna with a novel feeding network is presented. Compared with the Archimedean and log spiral antennas, a planar spiral antenna with rectangular arms has short coming of narrow axial ratio bandwidth. To overcome this weakness, a novel feedin...

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Bibliographische Detailangaben
Hauptverfasser: DongHyun Lee, PilJun Park, SeungWoon Choi, Day Young Kim, JaeHoon Choi
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Antenna feeds
Arm
Bandwidth
Delay lines
Impedance matching
Metamaterials
Planar transmission lines
Power dividers
Power transmission lines
Spirals
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Beschreibung
Zusammenfassung:In this paper, a planar type four-arm rectangular spiral antenna with a novel feeding network is presented. Compared with the Archimedean and log spiral antennas, a planar spiral antenna with rectangular arms has short coming of narrow axial ratio bandwidth. To overcome this weakness, a novel feeding scheme utilizing CRLH metamaterial transmission line is proposed. The network consists of a Wilkinson power divider, metamaterial delay lines, and two half-wave baluns. The measured '10 dB return loss' impedance bandwidth spans over 2.43 GHz from 1.09 GHz to 3.52 GHz. An excellent axial ratio performance (
DOI:10.1109/ICEAA.2007.4387359