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[IEEE 2018 International Conference on Information , Communication, Engineering and Technology (ICICET) - Pune, India (2018.8.29-2018.8.31)] 2018 International Conference on Information , Communication, Engineering and Technology (ICICET) - Metamaterial based Ultra Wide Band Low Pass Filter Using New Configuration of Complementary Split Ring Resonator Cell
摘要： This paper presents design of low pass filter for Ultra Wide Band applications using metamaterial. The new configuration of complementary split ring resonator (CSRR) cell is etched in top plane of microstrip line. This cell has very small size so that reduction of size of filter can be achieved. There are two cells etched in top plane of microstrip line. Each cells consist of zigzag pattern called as inter digital coupled lines. The filter has insertion loss close to 0dB over ultra wide band frequency. The S-parameters and VSWR are extracted by simulating design of low pass filter in CST simulation software. Also comparisons of s-parameter and VSWR with respect to different positions of cells like in top plane and in ground plane are discussed in this paper.
关键词： VSWR,CSRR,S-parameter,Metamaterial,Insertion loss,Inter digital coupled line
更新于2025-09-09 09:28:46
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[IEEE 2018 3rd International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) - Bento Gon?alves, Brazil (2018.8.27-2018.8.31)] 2018 3rd International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) - Using Metamaterial Complementary Split-Ring Resonators for Measuring Dielectric Constants and Loss Tangents at 22 GHz
摘要： This paper presents a method using a metamaterial complementary split-ring resonator (CSRR) to measure the dielectric constant (Dk) and loss tangent (Df) of materials at a frequency of 22 GHz. The method involves calculating the permittivity of an unknown material based on the oscillation frequency changes of a CSRR, which is caused by the material under test. This method with a CSSR sensor uses only the resonance frequency and the S21 magnitude response at the resonance frequency to calculate Dk and Df. The measurement accuracy was assessed by comparing the results with the declared values specified in the datasheets of material manufacturers. The results show good agreement with the declared values in the datasheets. Thus, with this method, the dielectric properties of materials at high frequencies of millimeter waves (mm-waves) can be characterized and a non-destructive sensor can be built.
关键词： metamaterial,loss tangent,dielectric constant,CSRR
更新于2025-09-09 09:28:46
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DESIGN OF A MICROSTRIP-FED HEXAGONAL SHAPE UWB ANTENNA WITH TRIPLE NOTCHED BANDS
摘要： In this paper, a microstrip-fed hexagonal shape ultra-wideband (UWB) monopole antenna with triple notched bands is presented. The antenna consists of a microstrip feed line, a regular hexagonal shape radiation patch with a complementary split ring resonator (CSRR) and a pair of inverted T-shaped conductor-backed planes embedded in the antenna backside. Notched bands can be easily controlled by geometry parameters of the CSRR and conductor-backed planes. The simulated and measured results show that this monopole UWB antenna can o?er an operation frequency from 2.93 GHz to 10.04 GHz with ?10 dB return loss bandwidth, except three notched bands at 3.31–3.78 GHz, 5.33–5.77 GHz and 7.24–7.72 GHz for rejecting the WiMAX and downlink of X-band satellite communication system signals. A good agreement between the measured and simulated results is observed. The proposed antenna provides broadband impedance matching, appropriate gain and stable radiation patterns over its operating bandwidth and can be used in wireless UWB applications.
关键词： microstrip-fed,conductor-backed planes,CSRR,UWB antenna,triple notched bands,hexagonal shape
更新于2025-09-09 09:28:46