Design, Analysis, and Development of a Large Ka-Band Slot Array for Digital Beam-Forming Application

The Glacier and Land Ice Surface Topography Interferometer: An Airborne Proof-of-Concept Demonstration of High-Precision Ka-Band Single-Pass Elevation Mapping

“…This was followed by a comprehensive campaign to Greenland on May [1][2][3][4][5][6][7][8][9][10][11][12][13]2009, where collaborative acquisitions with the NASA Wallops Airborne Topographic Mapper (ATM) laser altimeter [6] occurred coincident with in situ observations at the Swiss Camp of the Cooperative Institute for Research in the Environmental Sciences (CIRES) and calibration sites at both Swiss Camp and the Summit Station of the National Science Foundation (NSF).…”

“…From space, to obtain meaningful results on ice sheets based on existing observations and interpretation of the results, we estimate that surface elevation must be measured with a sub-10-cm accuracy on a 1-km scale in the interior and a few tens of centimeters at a spatial resolution of 100 m at the coast, where the kilometer-scale dimensions of glaciers demand finer resolution. Details of mission design and technology development in support of spaceborne feasibility can be found in [4], [7], and [8].…”

“…The antenna geometry is typical for slot arrays using a radiating layer with offset slots, a feed layer with angled coupling slots, and a power divider layer with offset input slots. In order to minimize development costs, the basic configuration-both mechanical and electrical-was kept as similar as possible to a prior design for GLISTIN technology development [8]. For example, the relatively large waveguide power divider that combines the subarrays fits comfortably behind the aperture of the GLISTIN breadboard but consumes much of the footprint of the IPY array.…”

Design, analysis and simualtion of a C band frequency scanning slot-array antenna

“…2) d Because the main lobe direction at 6.6GHz must be about 84-86 o (from Table 1), and assuming m = 2, the slot-to-slot spacing in the waveguide direction, d', can be calculated using (3) to be about 16cm.…”

“…Waveguide slot-array antennas have been investigated by the researchers for a long while and much effort is still made for the better understanding of their behavior and applications [1][2][3][4][5]. Nowadays, these types of antennas are used in different systems such as radars, wireless networks, and ….…”