Title :
The studies on coupling characteristics of microstrip complementary split ring resonators (CSRRs)
Author :
Zhang, Sheng ; Liu, Fa-lin
Author_Institution :
Dept. of Electron. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, Hefei
Abstract :
The coupling characteristics of three typical coupling structures for double CSRRs are studied in this paper firstly. One CSRR can couple to the other through electric coupling, magnetic coupling and mixed electromagnetic coupling respectively. Different coupling structures can cause different frequency responses, especially the stopband characteristics and the position of transmission poles. In order to find the influence of coupling spacing, a novel compact ultra-wideband (UWB) low-pass filter using double CSRRs is proposed. By adjusting the coupling spacing between two CSRRs, the spurious passband can be successfully suppressed. The stopband shows ultra-wideband and excellent insertion loss characteristics.
Keywords :
electromagnetic coupling; low-pass filters; microstrip resonators; ultra wideband technology; compact ultra-wideband low-pass filter; coupling characteristics; coupling spacing; coupling structures; electric coupling; frequency response; microstrip complementary split ring resonators; mixed electromagnetic coupling; Coupling circuits; Electromagnetic coupling; Electromagnetic fields; Frequency; Microstrip resonators; Microwave circuits; Microwave filters; Optical ring resonators; Passband; Ultra wideband technology;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2008. ICMMT 2008. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-1879-4
Electronic_ISBN :
978-1-4244-1880-0
DOI :
10.1109/ICMMT.2008.4540364
