defective ground structure (DGS)
Dual-Band Bandpass Filter with Dumbbell Shaped Defective Ground Structure
... As stated in Section III, the optimised dumbbell shaped DGS is incorporated in this filter. Fig. 9 shows the return loss simulation results for all DGS conditions etched in FR-4 ground planes. A ...
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Mutual Coupling Reduction of a Dual-Frequency Microstrip Antenna Array by Using U-Shaped DGS and Inverted U-Shaped Microstrip Resonator
... U-shaped defective ground structure (DGS) and an inverted U-shaped resonator are introduced in order to reduce the mutual coupling (MC) between two slotted microstrip antennas at two different ...
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A Compact Rectangular Microstrip Patch Antenna Loaded with Stubs and Defected Partial Ground Structure for UWB Systems
... different defective ground structure geometries such as dumbbell shape DGS [13], U-shaped DGS [14], circular dumbbell shape DGS [15], Cross shaped DGS [16] ...
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Octaband Microstrip Patch Antenna Using Dgs for S Band,C Band & X Band Applications
... a defective ground structure (DGS) to improve the performance of the ...The ground plane has L-shaped slots and the patch consists of a rectangular slot to enable multi frequency band ...
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Index Terms – Microstrip Patch antenna, Annular ring patch, DGS, Stacking, Return loss. I INTRODUCTION
... The DGS (Defective Ground Structure) implies a defective ground structure in place of a simple conventional ground ...
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Design of Microstrip Patch Antenna with Defected Ground Structure for Ultra Wide Band (UWB) Application
... is ground, patch, substrate (here used ...Defected Ground Structure is unique technology to reduce the antenna ...A DGS may come in a variety of geometries and sizes, depending upon their mode ...
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Title: Bandwidth Enhancement of A microstrip Patch Antenna for C-band and X- band By Using New Structure of Defected Ground Technique
... new structure of defected ground was suggested and simulated in this paper by using FEKO software to improve the bandwidth for both of C-band and X-band compared with the reference antenna in a previous ...
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Design Simulation Analysis and Comparison of 2-Way Wilkinson Power Divider with Different Topologies
... These can reduce the dimensions of the divider and have a better return loss, insertion loss and isolation.In [1] author designs a 4:1 unequal Wilkinson power divider using a microstrip. The conventional Wilkinson ...
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Compact circular slotted rectangular UWB antenna with WLAN and partial x band rejection
... The conventional and easy way to achieve band- notched function is by embedding slots on either radiating patch or on the ground plane, which results in the changed surface current distributions. In this paper, a ...
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Parametric studies on effects of defected ground structure (DGS) for 6 GHz bandpass filter
... of structure to produce the compact design and high performance of microwave ...Defected Ground Structure (DGS) and the Electromagnetic Band gap ...(EBG). DGS mostly used in many ...
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A Study On Isolation Performance Of Pin Diode With Defected Ground Structure (DGS) For RF Switch
... There are has been an isolation issue occurs in RF switch. The PIN diode with a parasitic capacitance is causing degradation of isolation performance in RF Switch based with dumbbell shaped DGS (Defected ...
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A Simplified Equivalent Circuit Model for Defected Ground Structures in Planar Transmission Lines
... Abstract—In this paper, an equivalent circuit model for special type of planer transmission lines with defected ground structures (DGS) is presented. This structure has multi stop bands in its ...
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Design of defected ground structure (DGS) for mutual coupling reduction of microstrip antenna array
... Microstrip patch antennas radiate primarily because of the fringing fields between the patch edge and the ground plane. For good antenna performance, a thick dielectric substrate having a low dielectric constant ...
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Miniaturized Microstrip Patch Antenna with Defected Ground Structure
... and ground plane for optimized antenna were ...with DGS respectively at 3 ...the DGS on the ground plane of the patch antenna ...on ground structure disturbs the current ...
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Isolation Enhancement of a Very Compact UWB MIMO Slot Antenna With Two Defected Ground Structures Used in Multi band Applications
... antenna elements are symmetrically arrayed. To improve the impedance matching characteristic and reduce the mutual coupling, a T-shaped slot and a line slot are used on the ground. More details will be discussed ...
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Wideband Probe-Fed Rectangular Patch with Defected Ground Structure for Cross Polarization Suppression
... Microstrip patch antennas are very widely used in communication systems nowadays. Due to the characteristic of narrow impedance bandwidth, most designs before were focused on XP characteristics at resonant frequency. ...
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Parametric studies on effects of defected ground structure (DGS) for dual band bandstop microstrip filter
... resulting in a controlled excitation and propagation of the electromagnetic waves through the substrate layer [12]. In this paper, the design of dual band bandstop microstrip filter is developed by placed the slot ...
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Design of defected reflector antenna
... defected ground structure (DGS) had been done before start doing this ...defected ground structure (DGS) is study to fulfill the requirement of this ...
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Design, Simulation And Development Of RF Switch With Defected Ground Structure (DGS) for WiMAX at 2GHz Band
... Defected Ground structure (DGS) as quarter wavelength in the circuit switch ...This DGS replace the conventional quarter wave length ...
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Micro Strip Patch Antenna with Multi-Split Ring Resonator Using DGS for Multi Band Applications
... The figure.4 describes the VSWR of the MPA with Semi arc slot and elliptical strip DGS which depicts that the VSWR is less than 2 in all the three resonant frequencies at 3.12 GHz, 6.38 GHzand 7.89 GHz with 1.26, ...
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