With the use of a low-power wide beam antenna
, the described system enables communication coverage for aircraft with fewer beams, fewer antennas and receivers onboard a satellite thus reducing its payload, hardware and ground stations requirements, and results in a more reliable service that can be achieved with less switching and traffic handover issues.
y HALL, P Switched beam antenna
array with parasitic elements.
3m earth deck reflectarray for a Ku-band contoured beam antenna
A compact conical beam antenna
has been proposed based on the QMSIW array, which is consisted of six isosceles right-angled triangle metallic patch printed on the upper side of the substrate in a windmill-shape and diagonal periodic metallic via holes drilled along the hypotenuse of the triangle patch.
Printed S-band 4 x 4 Nolen matrix for multiple beam antenna
applications," IEEE Trans.
The Defense Satellite Communications System III (DSCS III) satellites transmit and receive through SHF multiple beam antennas
(MBA) with programmable beam forming networks (BFN).
Krainiksh, "A horizontally polarized omnidirectional beam antenna
using array of axial slot on cylindrical surface," The 3rd International Conference on Microwave and Millimeter Wave Technology, 576-579, 2002.
In association with a switch matrix, a multiple beam antenna
can also be used for electronic beam steering, replacing mechanical beam steering in radar applications .
For realistic comparisons, we also use measured data of a broad beam and a shaped beam antenna
Now using a single MTI wide beam antenna
on each side of the portal results in a constant reading state and eliminates the need to switch between upper and lower antennas.
The radiation pattern produced by such a switchable beam antenna
has 14 main lobes that are wide in elevation (approximately 60 [degrees] for the antenna elements used) but narrow in azimuth.
Innovative multi-beam antenna
technology gives the cell sites their Super status with each providing network capacity double that of traditional, single beam antennas