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In this paper, compact size band pass filters are proposed and designed for WLAN applications. The coupled DGS resonators are considered the main block of proposed band pass filters. The three proposed filters are designed by using the same defected ground structure shape, but with different feed line configurations. The feed line configuration affects the presence of transmission zeros in the rejection...
This paper introduces the design of low pass filter for radar applications. The main block of the proposed filter is the combination of defected microstrip structure (DMS), compensated microstrip capacitors, and two defected ground structures (DGS). The proposed filter has several desirable features such as low insertion loss of 0.3 dB within the pass band, a wide rejection band from 1.5 GHz to 8...
This paper presents the design of a metamaterial MIMO antenna which operates at 5.8 GHz. The left handed single cell of series capacitor and shunt inductor are considered the main block of the antenna elements. The configuration of the shunt stub is reversed to achieve lower coupling between the antenna elements The small size of only 2.93cm×2.6cm and high isolation of more than 35 dB are considered...
This paper presents the design and measurement of a two-element MIMO antenna for UWB applications. Feeding for the MIMO antenna is employed using Asymmetric Coplanar Strip (ACS). The two elements are printed side-by-side on FR4 substrate, without having to use a decoupling structure between the two antennas. The edge-to-edge separation distance is 0.23λ0 at 3 GHz. The proposed antenna operates in...
UWB MIMO with four elements antenna is introduced in this paper. The asymmetric coplanar strip (ACS) is used to feed the MIMO antenna. The single antenna element consists of quarter elliptical ring radiator. The proposed antenna has size of (6 × 5) cm2. The distance between the edge to edge points of the antenna elements equals 0.37 λ0 between antenna 1 and 2 and 0.14 between antenna 1 and 3 at 3...
A design of compact size and multi-band composite right-left handed meta-material antennas for wireless applications is presented. The proposed antenna consists of single left handed cell. The series interdigital capacitor and short circuit stub which acts as shunt inductor are considered the main block of the proposed antenna. The proposed antenna is designed to operate at different frequency bands...
A compact reconfigurable band-notched UWB antenna is presented in this paper. The antenna has a partial ground plane with a rectangular slot to achieve the desired bandwidth for UWB from 3.1GHz to 12GHz. The antenna has a single band-notch frequency which is achieved using a switched U-shaped slot, inserted in the radiating patch. This slot is used to decrease interference with WIMAX applications...
A compact size microstrip fed UWB antenna with dual-band notched characteristics is presented in this paper. The first band notch is achieved by using defected microstrip structure band stop filter which is inserted in the microstrip feed line to reduce the interference with the WLAN from 5.1 GHz to 5.9 GHz. The second notch is accomplished by using a meandered slot etched in the radiating patch to...
This paper presents design of multi-band asymmetric coplanar strip-fed metamaterial antenna. The proposed antenna exhibits three resonances at 5 GHz, 5.8 GHz and 6.3 GHz. The proposed antenna is designed using one left handed unit cell. Thanks to the asymmetric configuration, the introduced antenna has the advantage of compactness (its size is only 13.5×26.5 mm2). The design represents size reduction...
This paper presents design of compact tunable dual band asymmetric coplanar strip -fed monopole antenna based on graphene sheet. The proposed antenna is consisted of ACS-fed folded monopole antenna with inverted two L branches which achieve very compact size. The proposed antenna is operated at 2.4 GHz and 5.8 GHz which is used for wireless applications. The graphene sheet is used to achieve the desired...
In this paper, TMR Sensors are applied to a fault-tolerant direct sensor to actuator (S2A) architecture for Ethernet-based Networked Control Systems (NCSs). The architecture is studied using switched Fast and Gigabit Ethernet. It is shown analytically and verified via OMNeT++ simulations that the architecture succeeds in meeting system end-to-end delay and strict zero packet loss (no over-delayed...
This paper presents a design and realization of a compact size third order coupled resonators band pass filter based on metamaterial split ring resonators. The proposed filter has center frequency of 2.4 GHz for wireless LAN applications with single transmission zero at 2.6 GHz. The filter design is based on the coupling matrix and external quality factor extraction and confirmed by experimental measurements...
This paper presents a design of compact planer ultra wide band antenna with band notched features. In order to produce a good impedance matching from 3.1GHz to 12GHz, a simple rectangular slot is etched from the ground plan. To reduce the interference with WIMAX applications from 3.3GHz to 3.9GHz, the band notched filter is employed. The band notched characteristics is achieved by inserting a simple...
A compact band pass filter based on microstrip coupled resonator is presented. The proposed structure consists of two microstrip open- loop resonators with electrical coupling. The reduction of the size of the proposed bandpass filter is achieved by combining the microstrip resonator with the lumped capacitors. The insertion of lumped capacitors within resonator was designed at maximum electric field...
This paper presents a comparison between different configurations of MIMO antenna. All proposed metamaterial MIMO antennas are implemented on FR4 substrate and operates at 5.8 GHz. The metamaterial MIMO antennas are designed employing one left handed unit cell with series capacitor and shunt inductor of different configurations. The two elements of MIMO antenna are combined together with small distance...
A new combination of aperture coupled microstrip antenna and metamaterial cover structure is applied to achieve 10.5 dB gain. We also report an integration of conical frame with aperture coupled microstrip antenna to increase the gain from 5.7 dBi to 12.2 dBi and a bandwidth of 12.2% over 11.05 GHz – 12.5 GHz. The presence of the metamaterial cover and conical frame has improved the back-lobe level...
This paper presents a dual band MIMO metamaterial based antenna. The antenna demonstrates dual input/output, the first one operates at 2.45GHz and the second one operates at 5.8 GHz. The two individual antennas are designed employing only one left handed unit cell. The proposed MIMO antenna has the advantage of compactness (its size is only 2.2 × 4.2 cm2). The design represents size reduction of approximately...
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