Abstract
A coplanar waveguide-fed circular slot antenna with wide tunable and reconfigurable frequency rejection characteristic is proposed numerically and verified experimentally. The frequency rejection function is realized by using a capacitance loaded split-ring resonator (CL-SRR). The wide tunable frequency rejection characteristic is implemented by adjusting the dimensions of the CL-SRR and the reconfigurable frequency rejection characteristic is realized by integrating two switches into the CL-SRR. The antenna has a small size of \(32\,\hbox {mm}\times 24\,\hbox {mm}\) including the ground plane. Simulation and measurement results show that the proposed antenna with omnidirectional radiation patterns and reconfigurable notch bands is suitable for ultra-wideband and cognitive radio communication applications.
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Acknowledgments
This work was supported by a grant from the National Defense “973” Basic Research Development Program of China (No. 6131380101). This paper is also supported by the National Nature Science Fund of China (No. 60902014 and 51209055). This paper is also supported by the Fundamental Research Funds for the Central Universities (HEUCF1304). The authors are also thankful to Hebei VSTE Science and Technology Co., Ltd. for providing the measuring facility.
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Li, Y., Li, W. A Circular Slot Antenna with Wide Tunable and Reconfigurable Frequency Rejection Characteristic Using Capacitance Loaded Split-Ring Resonator for UWB Applications. Wireless Pers Commun 78, 137–149 (2014). https://doi.org/10.1007/s11277-014-1740-0
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DOI: https://doi.org/10.1007/s11277-014-1740-0