Propagation characteristics of microstrip lines with 2D defected ground structures

Liu, Haiwen; Sun, Xiao Wei; Li, Zheng Fan; Yoshimasu, Toshihiko

doi:10.1002/mmce.20152

Cited by 8 publications

(12 citation statements)

References 12 publications

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“…5(a-b) it reveals that [12]: -TheS WF of the microstrip line with periodic DGS improves while frequency increases. -Thejumping phenomenon is removed.…”

Section: Dgs Designand Analysismentioning

confidence: 91%

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Design and Analysis of Defected Ground Structure for Microwave Planar Filters

Baral¹,

Singhal²

2009

Frequenz

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Adesignofdefectedgroundstructureispresentedinthispaper.The defected ground unit lattice improves the effective inductance. Increasing the effective inductance makes it easy to control the cutoff frequency characteristics. The proposed defected ground structure (DGS) provides excellent cutoff and stopband characteristics. In order to show the improved effective inductance, agroup of DGS circuits were designed with different periods and different dimensions. Simulation results show that the cutoff and stopband center frequency characteristics depend greatly on the physical dimension as well as period of the proposed DGS unit lattice. The frequency response obtained can be usefully utilized in design of various microwave planar filters. Detailedanalysis of the numericaland measuredresults hasbeencarriedout in this paper.

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“…5(a-b) it reveals that [12]: -TheS WF of the microstrip line with periodic DGS improves while frequency increases. -Thejumping phenomenon is removed.…”

Section: Dgs Designand Analysismentioning

confidence: 91%

“…3i su sed to explain the slow-wave behaviors of microstrip lines with DGS. Thecomparison of the SWF of the microstrip lines with DGS unit and without DGS reveals that [12]: -TheS WF of the microstrip line with DGS unit improves with increase in frequency. -Ajumping phenomenon occurs at angle frequency w0.…”

Section: Dgs Designand Analysismentioning

confidence: 95%

Design and Analysis of Defected Ground Structure for Microwave Planar Filters

Baral¹,

Singhal²

2009

Frequenz

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“…This phenomenon can be explained as follows: When w < w o (frequencies less than the resonance frequency of defect), w 0 :L < 1=w 0 C, Inductive Microstrip line is obtained, when w > w o ( frequencies greater than the resonance frequency of defect), w 0 :L > 1=w 0 C, Capacitive Microstrip line is obtained and in the case at the resonance frequency (w ¼ w o and w 0 :L ¼ 1=w 0 C) jumping phenomenon occurs [35]. Generally, the slow-wave factor is defined by l 0 /lg, where lg is the guided wavelength and l 0 is the free space wavelength.…”

Section: Dgs Characteristicsmentioning

confidence: 97%

Defected Ground Structure in the perspective of Microstrip Antennas: A Review

Arya¹,

Kartikeyan²,

Patnaik³

2010

Frequenz

111

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Defected ground structures (DGS) have been developed to improve characteristics of many microwave devices. Although the DGS has advantages in the area of the microwave filter design, microwave oscillators, microwave couplers to increase the coupling, microwave amplifiers, etc., it is also used in the microstrip antenna design for different applications such as antenna size reduction, cross polarization reduction, mutual coupling reduction in antenna arrays, harmonic suppression etc., The DGS is motivated by a study of Photonic/Electromagnetic Band gap structures. The etching of one or more PBG element creates defect in the ground plane and used for the same purpose. The DGS is easy to be an equivalent L-C resonator circuit. The value of the inductance and capacitance depends on the area and size of the defect. By varying the various dimensions of the defect, the desired resonance frequency can be achieved. In this paper the effect of DGS, to the different antenna parameter enhancement is studied.

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“…On the motive of conventional filter design methods such as stepped impedance and open stub suffering from poor skirt characteristics and spurious passband, researchers have paid great attention over the past few years in designing a compact and sharp cutoff lowpass filters with spurious free wide stopband. Lowpass filter using different defected ground structures (DGS), photonic bandgap (PBG) structures and electromagnetic bandgap structures have been proposed in various literatures [1][2][3][4][5][6][7][8][9]. Sharp cutoff and low insertion loss lowpass filter using a complementary split ring resonator (CSRR) is reported in [3].…”

Section: Introductionmentioning

confidence: 99%

Compact and Wide Stopband Lowpass Filter Using Open Complementary Split Ring Resonator and Defected Ground Structure

Karthikeyan¹,

Kshetrimayum

2015

RADIOENGINEERING

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A compact (0.16 g × 0.08 g) and wide stopband lowpass filter design using open complementary split ring resonator (OCSRR) and defected ground structure (DGS) is presented in this paper. Low pass filter is constructed using two cascaded stages of OCSRR. Since the rejection bandwidth of the OCSRR is narrow, tapered dumbbell shaped DGS section is placed under the OCSRR to enhance the bandwidth. The cutoff frequency (f c) of the proposed lowpass filter is 1.09 GHz. The rejection bandwidth of the filter covers the entire ultra wideband spectrum. Hence the spurious passband suppression is achieved up to 10 f c. The designed filter has been fabricated and validated by experimental results.

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Propagation characteristics of microstrip lines with 2D defected ground structures

Cited by 8 publications

References 12 publications

Design and Analysis of Defected Ground Structure for Microwave Planar Filters

Design and Analysis of Defected Ground Structure for Microwave Planar Filters

Defected Ground Structure in the perspective of Microstrip Antennas: A Review

Compact and Wide Stopband Lowpass Filter Using Open Complementary Split Ring Resonator and Defected Ground Structure

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