scholarly journals Compact Ultra Wide Band Microstrip Bandpass Filter Based on Multiple-Mode Resonator and Modified Complementary Split Ring Resonator

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
J. Antonio Marcotegui ◽  
Jesús Miguel Illescas ◽  
Aritz Estevez ◽  
Francisco Falcone
Keyword(s):  
Communication Systems ◽  
High Performance ◽  
Ring Resonator ◽  
Low Cost ◽  
Wide Band ◽  
Split Ring Resonator ◽  
Ultra Wide Band ◽  
Split Ring ◽  
Complementary Split Ring Resonator ◽  
Wide Range

A new class of broadband microstrip filters for Ultra Wide Band (UWB) applications is proposed. In the design, different stages of parallel-coupled microstrip line and other stages with a Modified Complementary Split Ring Resonator (MCSRR)—a concept proposed here for the first time—are adjusted to obtain the desired response with broadband, sharp rejection, low insertion loss, and low return loss. Full wave simulation results as well as measurement results from fabricated prototypes are presented, showing good agreement. The proposed technique offers a new alternative to implement low-cost high-performance filter devices, applicable to a wide range of communication systems.

scholarly journals Cost-Effective Flexible CSRR-Based Sensor for Noninvasive Measurement of Permittivity of Biomaterials

2021 ◽  
Vol 10 (1) ◽  
pp. 26
Author(s):  
Faezeh Shanehsazzadeh ◽  
Nafise Azizi ◽  
Hosna Kazerooni Haghighat ◽  
Fatemeh Mashayekhi ◽  
Mehdi Fardmanesh
Keyword(s):  
Ring Resonator ◽  
Point Of Care ◽  
Cost Effective ◽  
Split Ring Resonator ◽  
Point Of Care Testing ◽  
Split Ring ◽  
Tissue Samples ◽  
Complementary Split Ring Resonator ◽  
Microwave Sensor ◽  
Wide Range

A novel, cost-effective, flexible microwave sensor is proposed to facilitate point-of-care testing (POCT) methods for medical diagnosis. The sensor is based on the complementary split-ring resonator (CSRR) to accurately measure the permittivity of biomaterials over a wide range of frequencies. This ability can be used to characterize various materials under test (MUT) such as blood, saliva, tissue samples, etc. The flexibility of the proposed sensor means that it can be used when the accessibility of the sample has technical difficulties, such as on curved surfaces. Firstly, the optimized structure and coupling to the readout transmission line are evaluated using finite element method (FEM) simulations. Then, the prototype of the optimized structure is fabricated on a thin polydimethylsiloxane (PDMS) substrate as a biocompatible economical polymer, and aluminium is carefully chosen for the fabrication of CSRR and readout parts. The proposed flexible sensor is tested and compared to conventional rigid CSRR sensors. The proposed structure withstood the different bending positions well, and also showed an improvement in the results for curved MUT.

Compact Ultra-wide-band Bandpass Filter using Square Complimentary Split Ring Resonator

2020 ◽  
Vol 13 (5) ◽  
pp. 689-694
Author(s):  
Inder P. Singh ◽  
Praveen Bhatt
Keyword(s):  
Dielectric Constant ◽  
Bandpass Filter ◽  
Ring Resonator ◽  
Wide Band ◽  
Split Ring Resonator ◽  
Ultra Wide Band ◽  
Split Ring ◽  
Ansoft Hfss ◽  
Coupled Lines ◽  
Tightly Coupled

Background: In this paper, an ultra-wide-band bandpass filter with large stopband using interdigital coupled lines and pair of Square Complimentary Split Ring Resonator (SCSRR) is proposed. Methods: Interdigital coupled lines give bandpass characteristics and pair of SCSRR provides tuning of cut off frequencies and transmission zeroes on both side of the passband. In the passband, two transmission poles are achieved. The tightly coupled structure provides a wide stopband and sharp skirt response. Results: Dielectric constant 2.6 and its thickness of 0.787 mm is used to implement the design. Centre frequency of the proposed design is 5.1 GHz. Bandwidth at -3 dB is 3.5 GHz to 6.5 GHz. Conclusion: The proposed structure is simulated in Ansoft HFSS.

Design of Compact Highpass Filter for 5G mm-wave Applications Using Complementary Split Ring Resonator

Frequenz ◽  
2020 ◽  
Vol 74 (5-6) ◽  
pp. 177-181 ◽  
Author(s):  
Parthasarathy Ramanujam ◽  
P. G. Ramesh Venkatesan ◽  
Chandrasekar Arumugam ◽  
Manimaran Ponusamy
Keyword(s):  
Insertion Loss ◽  
Ring Resonator ◽  
Cutoff Frequency ◽  
Equivalent Circuit Model ◽  
Split Ring Resonator ◽  
Split Ring ◽  
Left Hand ◽  
Complementary Split Ring Resonator ◽  
Wide Range ◽  
Highpass Filter

AbstractThis article presents a design of highpass filter (HPF) for millimeter-wave (mm-wave) applications using a square complementary split-ring resonator (SCSRR). A miniaturized size HPF filter is obtained by overlapping the Right-Hand (RH) and Left-Hand material. The arrangement of inter-digital parallel coupled capacitor and SCSRR offers low insertion loss, high selectivity with a sharp roll-off factor over a wide bandwidth of 15.9 GHz (from 34.1 to 50 GHz). Generally, SCSRR offers narrow passband/stopband however this prototype has a passband over a wide range of frequency. The proposed HPF has an appreciable agreement between simulated and fabricated results. Further, the filter is realized in the equivalent circuit model and their electrical elements functions are also discussed. This prototype has a cut-off frequency (fc) of 34.1 GHz with a maximum passband insertion loss of 1.45 dB. The fabricated area of the filter is 0.16λg × 0.09λg × λg and where λg is the guided wavelength at cutoff frequency fc.

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