Equivalent circuit modelling of spiral defected ground structure for microstrip line

Kim, Chul-Soo; Lim, Jongsik; Nam, Sangwook; Kang, Kwang‐Yong; Ahn, Dal

doi:10.1049/el:20020742

Cited by 85 publications

(39 citation statements)

References 3 publications

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“…It rejects certain frequency bands, and hence it is called electromagnetic bandgap (EBG) structures [1][2][3]. Figure 1 gives the schematic of such a DGS with its approximate surface area [1].…”

Section: Introductionmentioning

confidence: 99%

Design of a Novel 3db Microstrip Backward Wave Coupler Using Defected Ground Structure

Sharma¹,

Chakravarty²,

Bhooshan³

et al. 2006

PIER

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Abstract-In this paper an edge coupled microstrip coupler with defected ground structure is presented. A normally 7 dB coupler designed on Alumina substrate is converted into a 3 dB coupler by cutting single rectangular slot in the ground plane encompassing the two transmission lines. Other properties of backward wave coupler remain the same, except for a tighter coupling. With this method of design optimization, it will be possible to fabricate a 3 dB coupler in compact form without strain in fabrication process. The structure is analyzed considering magnetic and electric coupling between the two transmission lines. Simulation based studies show reasonable agreement between analytical results and corresponding simulation results.

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Section: Introductionmentioning

confidence: 99%

Design of a Novel 3db Microstrip Backward Wave Coupler Using Defected Ground Structure

Sharma¹,

Chakravarty²,

Bhooshan³

et al. 2006

PIER

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“…또한, 유비쿼터스를 필두로 한 무선 통신 기술의 다 분화로 저전력 무선 센서 기반의 energy scavenging 전력 생산 연구 [8] 와 집적 가능한 시스템 구조 연구가 이슈가 부각되고 있으며 [9] , 시스템 소형화 및 집적화 를 위한 RF 소자 설계 기술 [10], [11] …”

Section: 호 전송의 유일한 원거리 무선 전력 전송 방법으로 고려되어 다양한 설계 방법이 연구되어 왔다unclassified

Wake-Up Receiver System Design Using the DGS Rectenna

최태민¹,

이석재²,

이희종³

et al. 2012

The Journal of Korean Institute of Electromagnetic Engineering

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In this paper, a new design of a planar rectenna system and its application to a wake-up receiver operating for incoming signal with a specified frequency are proposed for low-power sensor system applications. The planar and integrable rectenna system is designed with DGSs(Defected Ground Structures) at 2.4 GHz. The DGSs reject harmonic components of 4.8 and 7.2 GHz and eliminate 2.4 GHz fundamental frequency for DC-path filtering. The rectenna system has been evaluated for the conversion output voltages, and applied to the switching of a power supply at the low-power sensor receivers. The proposed system has been evaluated for the wake-up performance by testing a lownoise amplifier operation. From the experimental results, the proposed receiver system presents excellent operation performances.

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“…Usually, a DGS unit in either microstrip or coplanar waveguide is modeled by lumped elements (LE), i.e, a parallel LC resonant circuit, known as conventional equivalent circuit model (CECM) connected to transmission lines at both sides [1]. Furthermore, some circuit models based on an inductor and a shorted stub for a spiral DGS and a short stub, additional series transmission lines and a resistor for a dumbbell DGS have also been presented in literature [5], [6]. Even though this type of circuit models can present a periodic frequency response, they require a full-wave electromagnetic (EM) simulation in order to determine the values of their elements.…”

Section: Introductionmentioning

confidence: 99%

Circuit Modeling and EM Simulation Verification of DGS based Low-Pass Filter Employing Transmission Line Model along with Microstrip-Slotline Transitions

Challal

Dehmas

Azrar

et al. 2016

MATEC Web of Conferences

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Abstract. In this paper, an equivalent circuit model (ECM) for a defected ground structure (DGS) pattern is proposed and evaluated for designing a compact low-pass filter (LPF). The proposed ECM is based on microstrip lines and microstrip-slotline transitions. Every slotlines of the DGS unit are modeled by ideals transmission lines of characteristic impedance and electrical length. Comparison between full-wave EM and circuit simulations illustrates the validity of the proposed ECM.

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Equivalent circuit modelling of spiral defected ground structure for microstrip line

Cited by 85 publications

References 3 publications

Design of a Novel 3db Microstrip Backward Wave Coupler Using Defected Ground Structure

Design of a Novel 3db Microstrip Backward Wave Coupler Using Defected Ground Structure

Wake-Up Receiver System Design Using the DGS Rectenna

Circuit Modeling and EM Simulation Verification of DGS based Low-Pass Filter Employing Transmission Line Model along with Microstrip-Slotline Transitions

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