Abstract
A triband circularly polarized (CP) crossed-dipole antenna is introduced for 2.4/5.2/5.8-GHz wireless local area network (WLAN) applications. It employs a single feed and only two crossed trident-shaped dipoles as the primary radiating elements. To achieve a compact radiator size, two techniques are utilized, namely, insertion of a meander-line segment in the middle branch of the tridents and termination of all trident arms with arrowhead-shaped tips. The crossed trident-shaped dipoles are backed by a high impedance surface (HIS) to achieve a broadband characteristic and unidirectional radiation pattern at three bands. The measured impedance bandwidths, based on the -10-dB reflection coefficient values, are 2.21-2.62 GHz (410 MHz), 5.02-5.44 GHz (420 MHz), and 5.62-5.96 GHz (340 MHz), and the measured 3-dB axial-ratio bandwidths are 2.34-2.58 GHz (240 MHz), 5.14-5.38 GHz (240 MHz), and 5.72-5.88 GHz (160 MHz). The proposed antenna exhibits right-hand circular-polarized radiation with high gain.
Original language | English (US) |
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Article number | 6657725 |
Pages (from-to) | 1464-1467 |
Number of pages | 4 |
Journal | IEEE Antennas and Wireless Propagation Letters |
Volume | 12 |
DOIs | |
State | Published - 2013 |
Keywords
- Circular polarization
- Crossed-dipole
- High impedance surface reflector
- Wireless local area network
ASJC Scopus subject areas
- Electrical and Electronic Engineering