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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 the design of the small size broadband patch antenna for L-band applications. The size reduction is obtaining without changing frequency thanks to etched six slots in antenna ground plane. The comparison between the conventional and the designed antennas demonstrates that the etched slots in the ground plane increases the bandwidth by a factor of 2.3 and reduces the antenna size...
The effectiveness of using symmetry to cancel radiated fields and improve isolation between the transmitter and receiver of a single-frequency full-duplex patch antenna system is investigated. Orthogonal polarization is used to achieve isolation, and taking advantage of symmetric geometries serves to further reduce field coupling. A U-slotted rectangular patch antenna is designed for wideband operation...
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...
Bandwidth enhancement of a rectangular monopole UWB antenna using M-shaped strip with triple band notched characteristic is presented. Antenna consists of an exciting rectangular patch with two C-shaped and one inverted U-shaped slots along with defected ground plane which is coupled with M shaped strip. By inserting slots to the rectangular patch, three notched frequency bands are achieved. A conceptual...
In this paper Compaq patch antenna is designed using array of E shape element and its performance is optimized using defected ground structure. Two array designs are proposed of 1 by 2 elements and 2 by 2 elements and its performances are analyzed. Circular DGS is introduced to enhance the performance characteristics like gain, bandwidth, mutual coupling and better isolation between elements of antenna...
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...
This paper is aimed at developing a Hexagonal Patch Microstrip antenna for C Band, X Band and Ku Band Applications. This is designed using FR-4 (Lossy) substrate and validation of model is done using extensive simulations in CST MWS 2011. The proposed design is achieved using 3 steps with each step resulting in a great enhancement in the bandwidth. The proposed antenna works for all frequencies from...
In modern wireless communication system, antennas having low profile structure with wider bandwidth has become the most trending class of antennas. One proposed method of fulfilling the aforementioned requirements is via the use of a fractal geometry, giving rise to fractal antenna. This paper presents novel metamaterial based fractal antenna. FR4 is used as metamaterial layer. The results of return...
In this paper, two investigations of transparent patch antennas are demonstrated. One is using the liquor serving as the antennas while another is the study of the temperature influence of the distilled water on the antenna's radiation performances. The measured results show that the liquor has wide impedance bandwidth of more than 30% for |S11| < − 10 dB and the temperature variation of the water...
A compact dual-frequency antenna with two-port excitation and large frequency ratio is presented. It consists of a circularly-polarized (CP) microstrip patch antenna at 2.4 GHz and a linearly-polarized (LP) substrate-integrated cylindrical dielectric resonator antenna (DRA) at 60 GHz, resulting in a large frequency ratio of as high as 25. The two antenna parts are designed on a single substrate, giving...
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,...
The circular ring with rectangular patch antenna (CRRPA) has designed for air borne radar applications at 27.7GHz frequency. On the substrate, circular ring with rectangular patch has loaded for obtain the wide band frequency range is 21GHz–31.8GHz. On the ground plane of substrate small rectangular slot has loaded to enhance the gain. The results are presented and return loss is obtained −36.5dB,...
A compact circular patch with slotted meander line (CPSM) microstrip monopole antenna is proposed for X-band applications. Symmetrical circular patches with rectangular slots on either side of monopole feed line to enhance the bandwidth and gain. Impedance bandwidth of proposed antenna is 11.5 %. The operational frequency range of CPSM antenna is 10.48 GHz to 11.74 GHz (1.26GHz bandwidth). The size...
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...
This Work Presents the design of two different antenna. First, a Microstrip patch antenna with different shapes of cut in slot is designed. In order to increase the bandwidth and to obtain Dual polarization power divider having 50, 70 and 100 Ohm transmission line is fed in vertical and horizontal direction to the designed antenna. Second, a Serpinski Gasket antenna is designed for a working bandwidth...
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