Title :
Miniaturized complementary two turns spiral resonators for band-notched UWB antenna
Author :
Zhao, Xin ; Liu, Shao-Bin ; Zhou, Liang ; Kong, Xiang-Kun ; Yang, Huan
Author_Institution :
Coll. of Electron. & Inf. Eng., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
In this letter, a novel miniaturized complementary two turns Spiral Resonator (CSR2s) structure is proposed to improve notch performance of the UWB antenna. As a result of the miniaturized characteristic of the CSR2s, the multiple CSR2s are loaded in the UWB antenna. Therefore, the multiple resonant modes generated by the relevant multiple CSR2s can increase the notch bandwidth and sharpen rejection skirt performances of the notch frequency. We assess the filtering action of structures from two aspects: the return loss and the radiation level in the far field. The sensitivity of the notch frequency to antenna parameters is also investigated. The measured and simulated results are well complied with each other.
Keywords :
antenna radiation patterns; resonators; spiral antennas; ultra wideband antennas; antenna parameters; band-notched UWB antenna; far field radiation level; filtering action; miniaturized characteristic; multiple resonant modes; notch bandwidth; notch performance; rejection skirt performances; spiral resonator structure; Antenna measurements; Loaded antennas; Resonant frequency; Spirals; Ultra wideband antennas; Split-ring resonator (SRR); band-notched; complementary two turns spiral resonator (CSR2); ultra-wideband (UWB) antenna;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-2184-6
DOI :
10.1109/ICMMT.2012.6229971
