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The utilization of Electromagnetic band gap in microstrip antenna design becoming most popular. This periodic structure interacts with electromagnetic waves. It characterized by frequency stop-band, pass bands and band gap. Its application seen in filter designs, gratings, frequency selective surfaces, photonic crystal band gap, etc. The EGB structure reduces surface wave level, back lobes and improve...
This paper proposes a Ka-band aperture-coupled microstrip patch antenna (ACMPA) based on low temperature co-fired ceramic (LTCC) technology for circular polarization (CP) at 29 GHz. The antenna consists of an aperture coupled patch with stacked parasitic strips (SPS). The CP is produced by cutting the patch and the parasitic strips. The antenna provides an impedance bandwidth of 1.2 GHz from 28 GHz...
This paper proposes a new design of compact fractal patch microstrip antenna fed by coplanar waveguide to reduce the antenna dimension and to increase its bandwidth for Long Term Evolution application purposes. The results shown return loss of −23.45 dB and VSWR 1.144 can be achieved by controlling the height and the width of the fractal patch dimension. Bandwidth of the proposed antenna is 375 MHz...
The present investigation deals with the fabrication of silver (Ag) patch antenna with yttrium iron garnet (YIG) thick film layer inclusion as substrate overlay to enhance its performance. In this paper, YIG nanopowder was mixed with organic vehicle which consists of linseed oil, m-xylene and α-terpineol with powder ratio of 30 wt%. Then the mix was stirred at 150rpm for 3 hours at 40°C in order to...
This paper proposes a novel approach to design a microstrip patch antenna and to obtain the relationships between physical dimensions of it and its bandwidth. The curve-fitting method is adopted to establish the aforesaid relationship. The antenna is designed to operate in X band region of the entire electromagnetic spectrum and simulated results are verified with respect to the design frequency.
In this study, a square microstrip patch antenna operating in millimeter wave frequencies with improved return loss characteristics is proposed. The proposed patch antenna operates at 30 GHz which is among the projected 5G communication frequencies and has a novel geometry with diamond-shaped slots. The first design in this work is a conventional inset fed square microstrip patch antenna. It has a...
This paper presents two antenna design, the first antenna design a dipole antenna made of two material, aluminum and iron to works at TV channel frequency (450MHz-950MHz) in Jakarta, Indonesia. The second antenna design is a rectangular microstrip antenna with line feed method for radar application such as weather radar working on S-band at 3GHz frequency, we used rectangular shape because it is the...
Microstrip patch antenna finds a better choice in wireless communications because of their less cost, light weight and ease of fabrication. This paper proposes a novel design for the bandwidth enhancement of microstrip patch antenna with parasitic patch placed adjacent to the radiating patch along with the slots. The proposed structure is designed at 8.5 GHz using FR4-epoxy as substrate material that...
This paper presents an analysis of four impedance matching techniques to apply in tapered microstrip patch antenna fed by microstrip-line. The techniques used are inset-feed, quarter-wave transformer, displaced-line, and hybrid-line, which is a combination of the other three techniques. The antennas were designed to an operation frequency of 5 GHz. Antenna analysis and measurement were done using...
This paper presents the analysis of microstrip monopoles for applications in ultra wideband systems (UWB). Antenna structures using circular and semi annular ring patches are considered. The antennas are printed on a FR4 dielectric substrate and present truncated ground planes with a small cut beneath the microstrip line feeder to improve the antenna impedance matching. Results for return loss, resonant...
This proposed paper, a single band microstrip patch antenna for 5G wireless application is presented. This proposed antenna is suitable for the millimeter wave frequency. The single band antenna consist of new H slot and E slot loaded on the radiating patch with the 50 ohms microstrip line feeding used. This single band antenna is simulated on a Rogers RT5880 dielectric substrate have relative permittivity...
An almost square patch, a square patch and a stacked square patch with corner truncation for circular polarization (CP) are researched and developed at X-band for cognitive radios. Experimental results indicate, first, that the impedance bandwidth of a CP almost square patch fed from the edge by a 50 ohm line is 1.70% and second, that of a CP square patch fed from the ground plane side by a surface...
The microstrip antenna (MSA) is one of the most widely used microwave antennas possessing several advantages. However, it presents a low impedance bandwidth, low gain, and tolerance problems. Due to the increasing usage of wireless communication applications, the performance improvement studies of such systems has found a growing investigation area in recent years. One new area of applying wireless...
Microstrip patch antennas are indispensable in the areas of mobile communication, medicine and RFID, largely due to low costs of fabrication. In this paper, we aim to increase the bandwidth of a patch antenna, operating in the X band region of frequency. For the said purpose, we initially synthesize a co-ax fed patch antenna for a solution frequency of 9 GHz. By the variation of three distinct parameters,...
In this paper Rectangular Microstrip antenna is designed for 2.45GHz frequency. For the antenna miniaturization and Bandwidth improvement Dumbbell Shaped DGS on Rectangular Microstrip Patch antenna (RMSA)is used. The Design of DGS has been analyzed for different dimensions of dumbbell-Slot DGS. The Simulation process has been done through Finite Element Machine (FEM) based software Advanced Designing...
In this paper, a Coplanar Wave Guide (CPW)-Fed microstrip octagonal patch antenna for WLAN and WIMAX Applications is proposed. The studied structure is suitable for 2.3/2.5/3.3/3.5/5/5.5GHz WiMAX and for 3.6/2.4–2.5/4.9–5.9GHz WLAN applications. The octagonal shape is obtained by making a cut in the four angles of the rectangular microstrip patch antenna; in addition the using of CPW-Fed allows obtaining...
The need in today's wireless applications is to design antennas that are compact, robust and effortless to integrate with RF circuit components. Microstrip patch antenna is one such type which satisfies these requirements. But the two main performance parameters of an antenna namely the gain and the bandwidth are near to the ground for patch antennas. Usually the gain range of a patch antenna is 1–2dB...
The rectangular microstrip patch antenna with V shape slot is presented in this paper (Fig. 1). With this new configuration 33.5% impedance bandwidth with stable radiation pattern is achieved.
The single layer U-slot rectangular patch antenna has been found to provide impedance bandwidth of about 30% [1]. A bandwidth of up to 40% is obtained with a U-slot patch antenna stacked with a parasitic patch [2]. In this paper the effect of second U-slot stacked with the same geometry is presented, Fig. 1. A bandwidth as high as 46% is obtained.
The usefulness of broadband impedance matching to increase the bandwidth of a microstrip patch antenna is illustrated using three different antenna configurations. Measured data for a patch antenna was incorporated into commercial CAD software to design a matching network. Design limitations are also discussed. Practical design examples and experimental results are given which clearly demonstrate...
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