Negative permittivity meta-material microstrip binomial low-pass filter with sharper cut-off and reduced size

Ali, Abdul Malik Mohd; Hu, Zhirun

doi:10.1049/iet-map:20070097

Cited by 27 publications

(15 citation statements)

References 12 publications

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“…1 itself can be described as an LC resonant tank (2) [17] (becoming low pass filter), the resonant frequency is as showed below. CCSRR design below also is to improve the roll-off of the binomial return loss, thus a set of CCSRRs with resonant frequency f 1 near the conventional filter cut-off frequency f c would be required.…”

Section: Methodsmentioning

confidence: 99%

The CCSRR influences towards circular microstrip antenna

Ezanuddin

Malek

Soh

2010

2010 International Conference on Intelligent and Advanced Systems

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A circular profile microstrip antenna and its related structural dimensions meant for 5850 -7075 MHz Malaysia HAPS operating band are investigated here. Appearing by three layers and having layer three surface copper re-shaped on a microwave laminate. It was by varying the middle air gap spacing's height covering layer two regions. At the same time, this conditions will permit copper at layer three to be electrically and magnetically fed via a smaller circular copper sheet (fed via coaxial cable and varied its x-y position at layer one) in between layer one and layer three (ground plane). Apart from normal circular form, a total of one to four complementary circular split ring resonators structures are placed per circular copper including all the cascading parasitic elements with CCSRRs relevant width dimension are studied to obtain return loss improvement and higher gain.

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Section: Methodsmentioning

confidence: 99%

The CCSRR influences towards circular microstrip antenna

Ezanuddin

Malek

Soh

2010

2010 International Conference on Intelligent and Advanced Systems

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“…The bandwidth of this triangular CSRR-DGS are narrow with high Q-factor as compared to other CSRR-DGS structure. The parameters shown in Table 2, like roll-off rate, bandwidth, quality factor (Q) and selectivity of the filter can be extracted using the expressions given below [8][10]:…”

Section: Analysis Of Various Csrr-dgs As Bandstop Filtermentioning

confidence: 99%

“…The concept of metamaterial is used in complementary split ring resonator (CSRR) which is the combination of two split ring resonator [6]. In this paper, various shapes of complementary ring resonators are studied as defected ground structure for designing the microstrip filters [7][8][9][10][11][12][13][14][15]. All the CSRR-DGS structures have been simulated and compared with their frequency characteristics and also compared in terms of bandwidth, sensitivity and effective inductance and effective capacitance .…”

Section: Introductionmentioning

confidence: 99%

Investigation on Microstrip Filters with CSRR Defected Ground Structure

Kumar¹,

Patel²,

Kartikeyan³

2016

AEM

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This paper consists the design studies of complementary split ring resonator (CSRR) defected ground structure (DGS) microstrip filter with low insertion loss in the passband and high rejection in stopband with a comparison of various CSRR-DGS structure has been proposed. Various parameters of microstrip filters have been studied with CSRR-DGS such as roll off rate, bandwidth, effective inductance and capacitance. On the basis of these studies, microstrip low-pass, bandpass and dual-band bandstop filters have been designed and realized with enhanced properties of filters.

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“…Metamaterial usually gain its properties from structure rather than composition, using small inhomogeneities to create effective macroscopic behavior. Specifically, the development of Complementary split ring resonators (CSRRs), originally proposed by Pendry et al [2] was a major breakthrough for implementing left-handed techniques in planar circuit technology. Pendry et al proposed that the frequency selective property of SRRs was due to the negative effective permeability, produced at resonance.…”

Section: Fig 1 Response Of Low Pass Filtermentioning

confidence: 99%