A class of novel uniplanar series resonators and their implementation in original applications

Hettak, K.; Dib, Nihad; Sheta, Abdel Fattah; Toutain, S.

doi:10.1109/22.709469

Cited by 93 publications

(53 citation statements)

References 34 publications

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“…The shunt R s and C s sub-circuits simulate the substrate loss, and Cox is the parasitic oxide capacitor underneath the resonator of the 1.5-m SiO 2 on the Si substrate. The capacitor C1 represents the gap-coupling capacitor, while the series L and R are the parasitic inductor and resistor, respectively, from the ring and coupling metal stub [6,11]. The series LC forms the resonator realized by these coupling lines and the ring body.…”

Section: Modeling and Analysismentioning

confidence: 99%

High performance CPW and microstrip ring resonators on silicon substrates

Chen¹,

Hung²,

Chin³

et al. 2004

Micro & Optical Tech Letters

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Section: Modeling and Analysismentioning

confidence: 99%

High performance CPW and microstrip ring resonators on silicon substrates

Chen¹,

Hung²,

Chin³

et al. 2004

Micro & Optical Tech Letters

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“…Since cavity resonator technique requires bulky and costly metallic cavity, the planar resonant sensors are preferred because of advantages such as low cost, easy fabrication and integration with other microwave circuits [11]. Designs of the planar resonant sensor are mostly based on various resonant structures such as split ring resonators (SRR) [12][13][14][15], complementary split ring resonators (CSRR) [16], substrate integrated waveguide (SIW) [17,18], slotline based RF sensor [19], stepped impedance resonator (SIR) [20], series resonators [21], fractal capacitors [22], spiral inductors [23] and interdigitated capacitor (IDC) [24]. Among these different resonant structures, the fractal capacitors, spiral inductors, IDC are easy to get fabricated on microstrip line and provide a reasonably high amount of sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Design of Rf Sensor for Simultaneous Detection of Complex Permeability and Permittivity of Unknown Sample

Porwal¹,

Azeemuddin²,

Bhimalapuram³

et al. 2017

PIER C

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Abstract-In this paper, a novel microwave planar resonant sensor is designed and developed for simultaneous detection of permittivity and permeability of an unknown sample using a nondestructive technique. It takes advantage of two-pole filter topology where the interdigitated capacitor (IDC) and spiral inductor are used for placement of a sample with significant relative permittivity and permeability values. The developed sensor model has the potential for differentiating permittivity and permeability based on the odd mode and even mode resonant frequencies. It operates in the ISM (industrial, scientific and medical) frequency band of 2.2-2.8 GHz. The sensor is designed using the full wave electromagnetic solver, HFSS 13.0, and an empirical model is developed for the accurate calculation of complex permittivity and permeability of an unknown sample in terms of shifts in the resonant frequencies and transmission coefficients (S 21 ) under loaded condition. The designed resonant sensor of size 44×24 mm 2 is fabricated on a 1.6 mm FR4 substrate and tested, and corresponding numerical model is experimentally verified for various samples (e.g., magnetite, soft cobalt steel (SAE 1018), ferrite core, rubber, plastic and wood). Experimentally, it is found that complex permeability and permittivity measurement is possible with an average error of 2%.

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“…The need for circuits of small size and high efficiency has generated much attention to the study of compact coplanar filter. Recently, some basic compact structures utilized as series resonators in uniplanar technology have been proposed by K. Hattek et al [3]. Fang-Lih Lin et al [4] proposed the design of a novel ribbon-of-brick-wall coplanar waveguide filter.…”

Section: Introductionmentioning

confidence: 99%

Global modeling of a periodic coplanar waveguide structure for filter applications using an efficient iterative procedure

Sboui

Gharsallah

Gharbi

et al. 2004

Micro & Optical Tech Letters

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INTRODUCTIONA coplanar waveguide (CPW) has an important utility for monolithic microwave integrated circuits (MMIC) conception, due to its several attractive features in contrast to microstrip lines, such as ease of fabrication and simplicity of integration with active devices. Thanks to the uniplanar features, CPW offers several advantages in comparison with microstrip lines, such as easy series, shunt connection, and low dispersive effects.Several designs for coplanar waveguide including symmetric, asymmetric CPW, and multilayered CPW [1,2]. The recent development of uniplanar technology has offered more simplicity for circuit designers. The need for circuits of small size and high efficiency has generated much attention to the study of compact coplanar filter. Recently, some basic compact structures utilized as series resonators in uniplanar technology have been proposed by K. Hattek et al. [3]. proposed the design of a novel ribbon-of-brick-wall coplanar waveguide filter. The filter is built from cascading several sections of quarter-wavelength openend series stubs. In 1991, Dib et al. [5] applied the space-domain full-wall-wave integral equation to calculate the scattering parameters of the stubs. From the computation results, they used curvefitting technique to guest the equivalent circuits model. Rayit et al.[6] used the simulator EM to calculate the scattering parameters but suggested another equivalent circuit models.In this paper, a global modeling of a filter for uniplanar technology is considered by using a new iterative method based on the wave concept denoted as WCIP [7][8][9]. These filters are realized by considering one and three periodic cells. The periodic structure on CPW offers a very low insertion loss; thus, it can be used for several applications in microwave functions and help to reduce the MMIC size. THEORYDuring the last few years, the FMT-WCIP method has been applied in a wide variety of microwave structures [8,9]. In the following, we summarize the mechanism of the iterative procedure.Let us consider a CPW structure where the circuit is considered on the air/dielectric interface, as shown in Figure 1. The regions on both sides of ⍀ are designed by regions 1 and 2. Each region is defined with its characteristic admittance y 0i , which is chosen equal to 1/120 ri . The circuit includes three subdomains: metal M, insolate I, and source S. The solution of the problem consists in satisfying the following boundary conditions:On the planes z ϭ ϩH 1 and z ϭ ϪH 2 , the higher-order modes are shunted by their reactive admittance Y, which relates the tangential electric field E T to the total current density J; hence, we obtain:where i corresponds to regions 1 or 2, and Y is a projector operator on the f mn TE and f mn TM modes of the empty waveguide. The wave concept is introduced by considering the following linear combination [8]:This last equation allows us to write the boundary conditions given by Eq. (1) as the following general spatial equation:By combining Eqs. (2) and (3), a spectral ...

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A class of novel uniplanar series resonators and their implementation in original applications

Cited by 93 publications

References 34 publications

High performance CPW and microstrip ring resonators on silicon substrates

High performance CPW and microstrip ring resonators on silicon substrates

Design of Rf Sensor for Simultaneous Detection of Complex Permeability and Permittivity of Unknown Sample

Global modeling of a periodic coplanar waveguide structure for filter applications using an efficient iterative procedure

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