The shape of this beam is defined in terms of its gain versus angle from boresight. Beamwidth: This is the width of the beam (usually in degrees). It is defined in terms of the angle from boresight that the gain is reduced by some amount. If no other information is given, “beamwidth...
These results show a good deal of validation for experimental results. Figure13shows the measured antenna gain versus operating frequency for all switching modes. Finally, for the three switching modes, the radiation pattern plots are outlined in Figures14–16, while the surface current distributions ...
Wire antennas were used on the early operational satellites such as INTELSAT I and II with an antenna gain of about 4 dBi for receive and about 9 dBi for transmit. Now they are mostly used as the tracking, telemetry, and command (TT&C) antennas because of their wide beamwidth. Horn ...
(gain) of the LWA with continuous magnetic field scanning. (c) The numerical (solid line) and analytic (circles) results of\({\phi }_{peak}\), and\(\Delta {\phi }_{3dB}\)(dashed line) versus H0. (d)S21versus H0of the LWA for\(N=50\)(solid line) and\(N=100\)(dashed ...
As can be seen, the maximum gain, which occurs for θ=90°, is 3 dB higher compared to a single element aligned to have maximum gain in this direction. Also, the half-power beamwidth of the main lobe, which is the range of angles for which the gain is within 3 dB of its maximum...
2)at both input ports.The antenna has excellent performance in isolation,which is more than 36dB between the two input ports,and the gain of the antenna is about 9.5dBi.The radiation pattern and bandwidth over the operating frequency band are very stable.Index Terms—Cross-polarization,dual-...
With this arrangement, the output ports may radiate energy in all directions (i.e. low gain, wide beamwidth). Generally, an upper limit of segments/DOEWGs may be determined by a type of metal used for the first and second metal layers. For example, metal that has a high resistance may...
Pattern analysis (Gain, Directivity, Beamwidth, SLL, etc.) Near-Field to Far-Field transformation Near-Field probe correction Support for linear and circular polarizations Import of legacy NSI2000 and MI-3000 data Data Visualization: Plots – single cuts, 2D contour / image, 3D ...
Elliptical polarization was obtained in an on-body situation, versus nearly linear polarization in a free-space scenario. In the on-body case, however, the two polarization ellipses remained quasi-orthogonal to each other, ensuring the independence of the two signals needed to obtain diversity gain...
Phased Array Antenna: The phased array antenna provides a more convenient way to realize the highlydirectional antennaradiation field type and increase the transmitpower gain. Most array structures allocate input power to each antenna element and have the same phase to increasedirectivityand gain. Ther...