Dual-Band Dual-Sense Circularly Polarized Slot Antenna With a C-Shaped Grounded Strip
In: IEEE Antennas and Wireless Propagation Letters, Jg. 10 (2011), S. 915-918
Online
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Zugriff:
A novel dual-band coplanar waveguide (CPW)-fed slot antenna with a C-shaped grounded strip is proposed for dual-sense circularly polarized radiation. The circular polarization in the lower band is achieved by the slots loaded in two opposite corners, and the C-shape grounded strip can offer a current path for the upper band. A rectangular tuning stub protruded into the slot from the signal strip of the CPW is used to obtain good impedance matching over the whole frequency band. Axial-ratio (AR) bandwidth can be significantly enhanced through tuning the horizontal length of the C-shaped grounded strip. The antenna has been investigated numerically and experimentally. Experimental results show that the antenna possesses the measured 10-dB return loss impedance bandwidth of 106.9% (1.01-3.33 GHz). The measured 3-dB AR bandwidths for the lower and upper bands can be up to 32.35% (1.41-1.96 GHz) and 5.6% (2.45-2.59 GHz), respectively.
| Titel: |
Dual-Band Dual-Sense Circularly Polarized Slot Antenna With a C-Shaped Grounded Strip
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| Autor/in / Beteiligte Person: | Tian, Yu ; Liao, Zhen-Lin ; Zhang, Fan ; Jiao, Yong-Chang ; Chen, Yue-Ying ; Zhao, Gang |
| Link: | |
| Zeitschrift: | IEEE Antennas and Wireless Propagation Letters, Jg. 10 (2011), S. 915-918 |
| Veröffentlichung: | Institute of Electrical and Electronics Engineers (IEEE), 2011 |
| Medientyp: | unknown |
| ISSN: | 1548-5757 (print) ; 1536-1225 (print) |
| DOI: | 10.1109/lawp.2011.2166750 |
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