directional radiation
Design of 2D Metal Photonic Crystal Array of Directional Radiation in Microwave Band
... antenna directional radiation has great significance and practical application ...wave directional propagation can enhance the signal coverage in a particular direction and can also have a protective ...
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High Performance Planar Sleeve Dipole Array Antenna with Directional Radiation
... measurement and simulation has been obtained. Concerning the −10 dB S 11 (VSWR 2 : 1), the measurement impedance bandwidth of the antenna ranges from 1690 MHz to 1930 MHz with the fractional bandwidth around 13.2%. Thus, ...
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REDUCING FM BROADCAST ENERGY CONSUMPTION USING DIRECTIONAL RADIATION PATTERN
... This pattern allows maximum transmission of signal in one side and with limited radiation on the other side. In the Philippines, this pattern is suited for Tuguegarao City in Cagayan Valley region, Northern ...
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Compact and Low Profile MIMO Antenna for Dual-WLAN-Band Access Points
... compact directional MIMO antenna operating in ...desirable directional radiation pattern is obtained, and the calculated envelope correlation coefficient is better than ...
6
Compact Antenna For Future Short Range Communication Among Automobiles
... Intelligent Transport System requires integration of many types of antennas on automobile. As a consequence of this trend, analysis of low cost prediction of antenna characteristics is increasingly needed. Communication ...
7
Dual-Band Yagi-Uda Antenna for Wireless Communications
... performance, branch structures that are simple and easy to fulfil were used. The antenna configuration design and optimization methodology have been described. The qualitative discussions of the important parameters ...
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Design of a Novel Extremely Wide Band Dipole Antenna
... omni-directional radiation patterns due to their operating ...omni-directional radiation and very wide band characteristics simultaneously for EME ...
11
Design and Analysis of Circular Patch Micro-Strip UWB Antenna for Breast cancer Detection
... Microwave tomography and radar based microwave imaging techniques have been investigated in cancer detection [7- 9]. UWB antennas used in medical imaging should be planar, compact, with high radiation efficiency ...
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A Wideband Elliptical Bowtie Impusle Antenna
... With regard to antennas radiating in the microwave range, the input signal is a very-short-duration pulse, typically in the picoseconds confines [4]. The frequency spectrums analysis of the Gaussian pulse shows that ...
7
Design of Different types of Aperture Antennas using HFSS
... Horn antennas have a high gain of directional radiation pattern, these can range to 25dB in some cases, usually it has 10-20dB.There is a wide impedance bandwidth in a horn antennas to make understand that ...
9
Archimedean Spiral Antenna with Two Opposite Uni-Directional Circularly Polarized Radiation Bands Designed by Resonance Based Reflectors
... uni-directional radiation bands with good circular polarization (CP) characteristics are achieved in an Archimedean Spiral Antenna ...uni-directional radiation bands, low profile, good FBR and ...
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Design of Band-Notched Monopole Antenna with Semi-Ring Slot for Ultra-Wideband and 2.4 GHz WLAN Applications
... omni-directional radiation characteristics in X-Y plane and slightly bidirectional radiation characteristics in Y-Z plane and the gain is remained stable at entire UWB band ...
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Experimental Characterization of a Wireless MIMO Channel at 2.4 GHz in Underground Mine Gallery
... the directional radiation pattern of the MIMO patch antenna, which could not reach NLOS positions resulting in lower capacity compared to the LOS case by about 3 ...
10
Baffling telemetry detections can be useful: an acoustic receiver design to monitor organisms along reserve boundaries and ecotones
... its directional orientation ...omni- directional receivers were deployed at two of the hemi- directional receiver sites as controls but unfortunately both of these experienced component failures, did ...
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Diffusion Tensor Fiber Tractography of the Optic Radiation: Analysis with 6 , 12 , 40 , and 81 Directional Motion Probing Gradients, a Preliminary Study
... may have merit and be indispensable for effective analysis. This study has several limitations. First, only a limited number of subjects were enrolled into this preliminary study. A larger number should be enrolled in a ...
5
Design of Multilayer and Multiline Microstrip Directional Coupler with Closed Form Relations
... Microstrip directional couplers have been widely used in variety of RF/Microwave ...type directional couplers make them a good component to detect and transmit desired signals without impacting the ...
14
Improved Accuracy Distribution Localization in Wireless Sensor Networks
... and directional antenna, the function of this algorithm sensor determines their location based on the intersection of the areas covered by the beacons transmitted by reference ...
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Noise Reduction from Ultrasound Medical Images using Rotated Wavelet Filters
... ABSTRACT: Noise is an unwanted signal, which affect the images and degrade its quality. Different images suffers from different types of noises whose effect can be minimize or rather these noises can be remove by using ...
5
Monitoring the Delay and Directivity of Antennas in Gigabit WPAN (802.15.3c)
... of directional antenna and isotropic antennas have been developed using the simulator OPNET Modeler TM ...using directional antenna models. Moreover, use of directional antennas at transmitter and ...
8
Microstrip Leaky Wave Antenna Design For WLAN Application
... non-resonant and so are capable of wide band performance and, in addition, the main beam can be scanned by changing frequency. For these reasons, of late, they have attracted a lot of attention, especially for airborne ...
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