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A dual band microstrip patch antenna is designed using liquid crystal polymer (LCP) as substrate material is presented in this paper. The design of microstrip patch antenna with and without complementary split ring resonator (CSRR) is present for comparison sake. The Microstrip patch antenna without complementary split ring resonator resonates at 5.5GHz. The dual band Microstrip patch antenna resonates...
In this Electronic era, our routine life travels with the aid of wireless technologies. Research in wireless communication has been active to design the methods for wireless data transmission between vehicles. Wireless data transmission holds a crucial importance in emergency services such as ambulance attendants, police officers and firemen. The foremost aim of this paper is to design a circularly...
Graphene has been an interesting discovery for the next generation electronic material due to promising thermal, mechanical, electrical, chemical and thermal properties. As a platform to RF application, graphene plays an important candidate in antenna thin film development. Thin-films use less material and the active area is usually only 1 to 10 micrometers thick. Thus, it has been good candidate...
A method to improve the aperture efficiency of antennas using a non-uniform metasurface (MS) is studied in this paper. For illustration, a patch antenna and a planar MS having unit cells of square patches with different sizes are used. The sizes of the square patches on the MS follow a radial gradient index function. The aperture efficiencies of the patch antenna and the antenna using the MS are compared...
In this work, an electromagnetic characterization method using microstrip transmission lines to determine the dielectric properties of flexible substrates, such as papers or PET (Polyethylene Terephthalate), is proposed. Various metallization technologies (adhesive copper tape, screen printing, etched aluminum layer) have been tested to fabricate microwave circuits on these flexible substrates. Finally,...
In this paper we present the design, fabrication and characterization of a reconfigurable microstrip patch antenna with a substrate made of Epoxy bonded Yttrium Iron Garnet (YIG). This antenna is suitable for applications in 5 GHz band requiring frequency and polarization agility. We investigate the influence of the external magnetic field strength on the antenna's operating frequency and polarization...
Polarization diversity is well known to be an efficient technique improving the reliability of wireless communication. Moreover, it is very convenient, in terms of compactness, to have dual polarization on a single antenna instead of two separate radiators. Several dual polarized antennas have been therefore proposed by researchers, implementing this concept. In this paper a recently developed dual...
A microwave lens implemented using multi-layer substrates is proposed for antenna gain enhancement. The microwave lens proposed is composed of 11 layers of parallel substrates. A 3D-patch antenna designed to operate in the frequency band from 8 to 9 GHz (S11<−10 dB) is used for studying the microwave lens. Dual-feeding is used in the patch antenna to reduce cross polarization. For gain enhancement,...
In this study, a low cost highly directive 1×4 end-fire dipole antenna array is designed and presented, providing 9.3dB gain. This array is going to be mounted on the wings of a Remotely Piloted Aircraft System (RPAS) to ensure reliable and secured links with the Ground Control Station (GCS) over large distances. Moreover a 2×4 low cost multi-layer patch antenna array with 14dB gain, placed on the...
Microstrip antennas generally prefer to printed antennas used for narrowband range at ultra-high frequencies and microwave communication. There are generally three basic methods of design microstrip antenna whose names are transmission line, cavity & full-wave model. This paper we use here the transmission line model for designing hexagonal shape having ground cut microstrip patch antennas. The...
The universal demand for compact handheld communication devices has increased significantly in the modern era. Devices with internal antennas have emerged to cater to this necessity of device miniaturization. Antenna size is a major factor that limits the manufacture of efficient small devices. Over the past few years, new designs based on the Micro Strip Patch Antennas (MSPA) have come to the fore...
In this paper, a new conception of high gain antenna have been staged. High gain antenna is designed by increasing the number of main radiating patch in a linear antenna array and studying the radiation patterns for the single patch antenna and array of 5 elements, 9 elements and 16 elements in order to attain a high directive gain for ISM Band. For many applications a high gain and directive antenna...
The helical wave that carries orbital angular momentum has received much attention due to its potential in communications and other aspects. In this paper, a multimode concentric circularly polarized patch antenna is designed to generate multiple orbital angular momentum modes. The proposed antenna consists of three circularly polarized patches, one circular patch and two shorted annular ring patches,...
This paper demonstrates the performance analysis of different CSRR and PSRR techniques in microstrip patch antenna design. In this paper, the performance of conventional rectangular microstrip patch antenna with defected ground structure has been analysed by employing different complementary split-ring resonator (rectangular and circular shape) and planar split-ring resonator (M and mho shape) structures...
This paper demonstrates the design and performance analysis of an inverted L shape slotted micro strip patch antenna. The FR4 material having relative permittivity of 4.4 and thickness of 1.57mm has been employed as a substrate. The upper surface of substrate has a slotted square shaped patch and the lower surface of substrate has a defected ground surface. The slotted defected ground surface and...
This paper demonstrates the performance analysis and comparison of three different low dielectric constant materials - Acrylic, Teflon and Polycarbonate suitable to be employed as substrate in microstrip antenna design. The three proposed substrate materials - Acrylic, Teflon and Polycarbonate have low dielectric constant of 1.9, 2 and 2.1 respectively. The antenna designs employs step notched patch...
Design idea of wearable rectangular patch antenna and its array for MBAN (2.36 – 2.4 GHz) applications are proposed in this paper. Microstrip line with quarter wave transformer is used for feeding purpose. Polyamide lossy (Nylon-6) is used as dielectric substrate whereas the conductive parts i.e. patch and ground plane consists of nickel - copper - nickel coating on the textile substrate. The presence...
In recent times, the technology is moving towards artificial intelligence world which include IoT (Internet of Things) and IoE (Internet of Everything). Machine to machine or device to device communication is possible with IoT. In the pursuit of IoT and IoE, patch antenna plays a significant role. The patch antenna needs an appropriate design and functional analysis for such applications. This paper...
The growth of wireless and mobile communication has necessitated the development of efficient antennas with low return loss and wider bandwidth. Under this scenario, paper focuses on an efficient design of circular microstrip antenna at 5.8GHz for wide-band applications. In the design circular patch is mounted on RT/Duroid 5880 glass microfiber reinforced PTFE composite substrate material. A circular...
Most of the mobile and wireless embedded application requires an efficient antenna for embedded communication. In such cases a microstrip patch antenna is the best one because of its better physical properties. In this paper design of slotted rectangular microstrip patch antenna operated in 2.48 ism band is explained. The antenna was designed for different height of RT-Duroid substrate. Since RT-Duroid...
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