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A compact microstrip line fed tapered-shaped slotted ultra-wideband(UWB) antenna is presented. The new design is composed of a rectangular slotted patch with a compact size of 21.44 × 23.53 mm2 and fed by microstrip transmission line of 50 Ω. The proposed antenna is simulated onto a less expensive FR4 substrate which has a height of 1.6 mm. There achieved a wider bandwidth of 8.51 GHz (3.49–12 GHz)...
This paper emphasizes on the design and performance analysis of dual resonant air gap antenna design. The proposed antenna has been designed using Flame Retardant 4 (ΓΚ4) substrate of dielectric constant, εr=4.4 sandwiched between copper patch and ground plane. The design o f antenna has been made to ensure the compact size of the designed antenna and operating bandwidth of 1.007 GHz (7.281 GHz-8...
This paper demonstrates the design and performance analysis of the star shaped microstrip patch antenna. The proposed antenna design employs substrate of FR4 material having thickness and dielectric constant of 1.6 mm and 4.4 respectively. The proposed antenna design consists of a FR4 substrate, star shaped radiating copper patch and slotted ground forming star shaped microstrip patch antenna configuration...
Due to the increasing interest in millimeter wave spectrum regions in the next generation of communication systems, there is a need to analyze and design antennas appropriated for this purpose. Microstrip antenna array with a multi-layer structure is a potential candidate. The antenna should work in a wide spectrum interval and should be multiband. The proposed antenna system consists of three layers...
This paper is aimed to present a very small sized patch antenna for UWB applications. The antenna used microstrip feed-line. This antenna is very small in dimension. The total size of the antenna is 20×18mm2. Triangular slots in the partial ground plane, are used to get a better bandwidth. The antenna has VSWR<2 over the bandwidth. The whole designing and simulation process of the antenna is done...
The effects of thickness and dielectric constant of flexible substrates on the performance of a circular planar monopole antenna (PMA) is reported in this paper. The antenna is printed on a flexible Polyimide substrate and fed by 50 Ω microstrip line. Results revealed that substantial effect on the antenna performance due to substrate thickness and material even if the radiating structure is ungrounded...
In the printed circuit board (PCB) of high-speed optical transceiver module, the signal transmission speed is limited by many effects. In a multilayer PCB, a through-hole via is usually used to connect the signal path between the upper-layer and lower-layer. The impedance of signal path in PCB significantly influences on the signal performance. While the impedance of through-hole via mismatches with...
In this paper, a compact broadband monopole RFID reader antenna with operating frequency of 2.45 GHz is designed for vehicle detection application. This reader antenna is buried in the ground of parking lot along the curb. The antenna comprises a planar loop monopole element which is fed by a microstrip line. The proposed antenna is simulated using HFSS (High Frequency Structure Simulator) as a 3D...
A new approach for designing a parallel coupled-line coupler with controllable bandwidth is presented. The proposed circuit consists of one coupled-line section and four open- or short-circuited stubs tapped at the ends of coupled lines. The adjustable range of fractional bandwidth is from 7% to 45% controlled by adjusting the impedance of stubs. An experiment coupler operating at 2.5 GHz was fabricated...
This paper presents a design of Y-shaped patch microstrip antenna, which has been achieved by inserting Y-shaped strip in circular hole in square patch microstrip antenna and it has been excited by using microstrip line feed technique. Y-shaped microstrip patch antenna is designed on a FR4 substrate of thickness 1.524mm with relative permittivity of 4.4 and mounted above the ground plane. The measured...
In this paper microstrip antenna with different defected ground structures are compared on the basis of their bandwidth, gain and radiation properties. It is observed that these antennas can operate in ultra wide band frequency range with different notches. Comparison of these antenna structures reveals that these antennas show multiple band operation with different number of pass bands and bandwidths...
The diplexers based on 2D electromagnetic crystal are investigated with the help of the numerical electrodynamic analysis of 3D models. The input half-wave resonator has rolled up strip conductor in the claimed microstrip designs tuned with nearly adjacent bandwidths. It allows to coordinate channels rather easily. Such resonator in the first two-channel device at the same time interacts with pair...
In this demonstrative work, rectangular microstrip patch antenna has been proposed. Teflon substrate having thickness of 4mm and dielectric constant of εr = 2.1 has been employed. The design and analysis of the proposed system has been carried out on Computer Simulation Technology (CST) Microwave Studio 2014. The proposed antenna has compact size, light weight. The proposed antenna ground and patch...
The paper represents, a novel wideband rectangular shaped MPA with microstrip feed and a reduced ground. The substrate employed in the presented antenna design is extruded polystyrene (XPS) having low electric permittivity of 1.02 and thickness of 2 mm. The presented microstrip patch antenna has an impedance bandwidth of 1.69 GHz with resonant frequencies of 2.07 GHz and 2.77 GHz and impedance bandwidth...
This paper concentrates on the design and performance analysis of blind hole substrate slotted microstrip patch antenna design for X-band applications. The anticipated antenna has been designed using Flame Retardant 4 (FR4) substrate of dielectric constant, εr of 4.4 sandwiched between copper patch and ground plane. The intended antenna has compact area with impedance bandwidth of 560 MHz (7.67 GHz–...
In this paper, Coaxial feed dual band circular Microstrip patch antenna (CMPA) for ISM (2.4–2.5GHz) and WLAN (5.150–5.350GHz) application is proposed. Dual frequency bands are obtained by inserting a circular slot in the circular radiator as well as bandwidth enhancement is obtained by modifying the ground plane. FR-4 substrate having dielectric constant of 4.4 and thickness of 1.6 mm is used to simulate...
Modern communication system demands compact devices that operate over a wide range of frequencies. These systems require minimum sized antennas. Two miniaturized spiral configurations (rectangular and circular) that offer wide bandwidth and multiband operation is proposed in this paper. The structures use spiral configuration to achieve size reduction and wideband/ multiband operation. The rectangular...
An optimized planar antenna for transceiver operating at 1800 MHz (DCS band) is designed and presented. The designed microstrip antenna is used for Digital cellular system operating at the frequency of 1800 MHz with the return loss better than 10 dB.FR4 substrate is used in the design with lesser occupancy of 50*40*3.8mm3. The simulated design of antenna confirms satisfactory output gain and omnidirectional...
A new approach is investigated to enhance the gain of Microstrip Antenna Array using the substrate integrated waveguide (SIW). Integration of SIW is implemented firstly in single microstrip antenna and then in 4×1 array. Rectangular microstrip antenna array is backed with SIW cavity is designed to improve gain as well as bandwidth for wireless communication applications. Proposed antenna array acquires...
In this paper, a kind of Ka-band Planar broadband slot-coupled antenna is introduced. In order to broaden the bandwidth, use E-shaped patch on the basis of the copper axial feed antenna. These two parallel slots is equivalent to two LC resonant circuits which has coupling effects. Meanwhile, slot on the ground. Through the simulation, the center frequency of the antenna is 29 GHZ and its relative...
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