antenna front to back ratio
Rectangular Microstrip Antenna with Air Cavity for High Gain and Improved Front to Back Ratio
... patch antenna with PTFE substrate produces low gain and poor front to back radiation ...an antenna with high gain along with improved front to back ratio, we have proposed ...
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Design of a Wideband Unidirectional Slot Antenna with Stepped Reflector for Front to Back Ratio Enhancement
... slot antenna with front to back ratio (FBR) enhancement is ...The antenna consists of a novel compact slot driven antenna, a stepped reflector and a vertical balun from a ...
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Vertical Polarized 1 × 3 Series-Fed Linear Array with Gain and Front-to-Back Ratio Enhancement for Airborne SAR-X Applications
... are front-to- back ratio, side-lobe level, co-polarization, cross-polarization, and half power beam width ...an antenna can radiate scatters through the side lobes or back lobe, and the ...
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DESIGN CONSIDERATION OF ARRAYS FOR THE STUDIES OF RADIATION PATTERN OF LOG PERIODIC DIPOLE ARRAY ANTENNA AT DIFFERENT FREQUENCIES
... and front to back ratio are illustrated in the ...LPDA antenna were acquired with MATLAB simulations and it was regarded under free ...the antenna which are obtained by the currents of ...
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Wideband Circular Polarization Cavitay-Backed Slot Antenna for GNSS Applications
... polarization antenna for Global Navigation Satellite System ...of back-side slot and front-side monopole, is proposed to realize a wideband ...fabricated antenna show good agreement with the ...
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Performance Evaluation of Back to Back E-Shape Microstrip Patch Antenna for MIMO Applications
... patch antenna for obtaining circular polarization with an axial ratio of ...patch antenna is constructed using a single layer RT/duroid (5880) substrate, having dielectric constant εr = ...proposed ...
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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
... patch antenna is also presented in this ...this antenna increase the Maximum Fractional Bandwidth up to 45%, 14%, 20% can be designed by cutting a slots in a complete circular ...and front to ...
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Analysis and Design of Wideband Planar Yagi- and BI-Yagi Arrays with Photonic Band Gap
... In the present work, analysis and design are carried out for a wide band yagi and bi-yagi microstrip antenna arrays. The ground plane of the array is etched to produce photonic band gap (PBG) structures [7, 8]. ...
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Dual-Band Low Profile Directional Antenna with High Impedance Surface Reflector
... the antenna/HIS and antenna/PEC. As we can see, the back-lobe of the patterns can be reduced remarkably when the HIS reflector is ...the antenna/PEC, the front-back ratio ...
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Design of a Compact Stacked Yagi with a Novel Slotted Reflector and a Ladder-Like Director for Bandwidth Enhancement
... Yagi antenna is composed of a driver element, a reflector and several ...Yagi antenna get closer, the radiation resistance drops dramatically, which creates mismatch loss and narrow impedance bandwidth [2, ...
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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 antenna should cover the entire operating bandwidth, and the antenna should be non-responsive to signals outside the specified band ...The antenna is one of the crucial components, which ...
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Design And Development Of An Antenna At 900MHz For Short Range Wireless Communications
... important antenna parameters are the gain and the impedance ...an antenna while the impedance bandwidth describes the range of frequencies within which the voltage standing wave ratio is below 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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Analysis of Radiation Pattern of a Log Periodic Dipole Antenna in VHF Frequency
... of Front to Back Ratio, Gain, VSWR with frequency (MHz) are illustrated in the Figure 4, Figure 5 and Figure 6 respectively ...LPDA antenna were acquired with MATLAB simulations and it was ...
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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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Effect of front and back squat techniques on peak loads experienced by the Achilles tendon
... The barbell squat is one of the primary techniques in the discipline of strength and conditioning [1, 2]. The squat is a closed chain kinetic exer- cise and has been shown to be biomechanically similar to a number of ...
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Two Robinson Revisions: "Mr. Flood's Party" and "The Dark Hills"
... First, with regard to the phonematic patterns, we note a sug- gestive movement from front to back in the articulatory ges- ture,6 produced by the back and front vowels, as in dark, hills[r] ...
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A Fully Planar Near-Field Resonant Parasitic Antenna
... Electrically Small Antennas (ESAs) are applied abundantly in modern communication systems [1–3]. A lot of methods have been studied to reduce the size of an antenna. Among others, this resulted in planar ...
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Organizing for servitization : examining front and back end configurations
... of front- and back-end ...the front-end become more complex, including both technical and non-technical ...the front-end activities around platforms ...
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Behavioural Analysis with Movement Cluster Model for Concurrent Actions
... S1 Walking Gestures Walk Throw/Catch Jog Box Left stride (back) Left stride (front) Right stride (back) Right stride (front) Left arm forward Left arm backwards Right arm forward Right a[r] ...
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