Front-to-Back Ratio
Vertical Polarized 1 × 3 Series-Fed Linear Array with Gain and Front-to-Back Ratio Enhancement for Airborne SAR-X Applications
... at 9.65 GHz. The antenna prototypes have been fabricated and experimentally characterized. The good agreement between simulated and experimental results has validated the design. In addition, the antenna provides stable ...
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Rectangular Microstrip Antenna with Air Cavity for High Gain and Improved Front to Back Ratio
... poor front to back radiation ...improved front to back ratio, we have proposed a simple rectangular microstrip patch with full air cavity beneath the ...improved front to ...
5
Design of a Wideband Unidirectional Slot Antenna with Stepped Reflector for Front to Back Ratio Enhancement
... Abstract—A compact unidirectional slot antenna with front to back ratio (FBR) enhancement is proposed. The antenna consists of a novel compact slot driven antenna, a stepped reflector and a vertical ...
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Analysis and Design of Wideband Planar Yagi- and BI-Yagi Arrays with Photonic Band Gap
... In this paper, the analysis and design of wideband microstrip yagi and bi-yagi antenna arrays with photonic band gap (PBG) are studied. By using the bi-yagi planar array, a high directive gain and with PBG a high ...
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Performance Comparison of Different Shapes of Patch Antenna on Sapphire for RFID Application
... Fig.18 shows the comparison of returnloss of all antennas. It shows that all antennas are almost tuned at required frequency. Fig.19 shows that the directivity (dBm) of all antennas on same graph and it shows all ...
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Design of a Compact Stacked Yagi with a Novel Slotted Reflector and a Ladder-Like Director for Bandwidth Enhancement
... In this paper, a compact stacked Yagi antenna is proposed with bandwidth enhancement. Six slots are etched on the reflector ground to reduce the size of the antenna and improve the front-to-back ratio ...
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DESIGN AND SIMULATION OF MULTIBAND MICROSTRIP PATCH ANTENNA FOR WIRELESS 2 GHz TO 12 GHz BANDAPPLICATIONS WITH MICROSTRIP LINE FEEDING TECHNIQUE
... Radiation performance of circular patch antenna is also presented in this paper. The simulated results indicate that this antenna increase the Maximum Fractional Bandwidth up to 45%, 14%, 20% can be designed by cutting a ...
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Dual-Band Yagi-Uda Antenna for Wireless Communications
... the front-to-back ratio of the prototype in the two bands are given in Table 2, from which we can see the front-to-back ratio values are ...and front- to-back ...
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DESIGN AND SIMULATION OF MULTIBAND MICROSTRIP PATCH ANTENNA FOR WIRELESS 2 GHz TO 12 GHz BAND APPLICATIONS WITH MICROSTRIP EDGE FEEDING TECHNIQUE
... The various designing parameters like return loss, VSWR, gain, directivity, total gain, radiate power, acceptant power, incident power, radiation efficiency front to back ratio, peak gain, E- field ...
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Four Element Microstrip Antenna Array with Electromagnetic Band Gap Structure and Silver Material Deposition for Reduced Mutual Coupling
... the back lobe radiation is concerned, the proposed microstrip antenna arrays 2 and 3 are radiating backward power of -9 and ...parameter Front to Back ratio (FBR) is calculated by deducting ...
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DESIGN CONSIDERATION OF ARRAYS FOR THE STUDIES OF RADIATION PATTERN OF LOG PERIODIC DIPOLE ARRAY ANTENNA AT DIFFERENT FREQUENCIES
... high front-to-back ratio over a very wide frequency range. Front-to-Back (FB) ratio is the ratio of maximum forward to minimum rearward radiation and is normally measured ...
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Analysis of Radiation Pattern of a Log Periodic Dipole Antenna in VHF Frequency
... In this paper we have analysed the E&H plane Radiation patterns of LPDA at 60 and 120MHz, depicted in Figure 2 and Figure 3 respectively. The Variation of Front to Back Ratio, Gain, VSWR with ...
5
Dig1 protects against locomotor and biochemical dysfunctions provoked by Roundup
... sheet1: front activity (in counts); 2: rear activity (in counts); 3: sum "front+rear" (in counts); 4: shuttles back and forth (in counts); 5: horizontal activity (sum ...
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Dual-Band Low Profile Directional Antenna with High Impedance Surface Reflector
... the back-lobe of the patterns can be reduced remarkably when the HIS reflector is ...the front-back ratio can be increased from 25 dB to 42 dB at the band of ...
9
Light Trapping in an 18 um Silicon Solar Cell with a Current Density of 34.5 mA/cm 2
... + front surface field (FSF), an 18 um, 5e15 cm -3 n type base and a 1 um, 5e17 cm -3 p + type rear ...specular), front surface internal reflectivity. Front external reflectance in this model is ...
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INFORMATION TECHNOLOGY BASED MODEL FOR BALINESE CLASSICAL DANCE PRESERVATION
... Development of balineseclassical dancewebsite using PHP programming language. This system consists of two sides namely the front end system and back end system. Front end system is a vi[r] ...
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Computer-Aided Engineering of Plywood Upholstered Furniture Frames
... The two end-assemblies in an upholstered furniture frame account for the majority of the components in that frame. When the frame is assembled in the CAD system, it should come as no surprise that the majority of time is ...
105
Front-loading and Back-loading Arguments in English Oral Presentations
... The third significant finding related to the clarity of the presentations. The researcher and the instructors were generally in agreement with regards to rating the clarity of the presentations. Those presenters, who ...
5
Effects of front and back squat techniques on patellofemoral joint kinetics in males
... the front and back squat lifts, there remains little clinical research concerning the two squat modalities regarding the stresses experienced by the patellofemoral joint ...
7
Periodic self reformation of rippled perpendicular collisionless shocks in two dimensions
... et al., 2012a, b, 2014). The electron cyclotron harmonic mode does not have magnetic fluctuations, and does not inter- act with the shock-front ripples. It is suggested that the quasi- periodic formation of the ...
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