Description of Research

0025-EX-ML-2008 Text Documents

RADANT TECHNOLOGIES, INC.

2008-03-14ELS_88798

EXHIBIT NO. l Radant Technologies, Inc. intendg to use the requested . station authorization to conduct tests on antennas and radomes which it builds. Such tests will include measurement of radiation patterns, gain, efficiency, bandwidth and directional accuracy. The antennas will be tested in the receive mode, using the transmit station as a source and the transmission characteristics inferred from the reciprocity principle. ‘Specifically, an antenna to be tested will be mounted on an antenna ppsitioner in an anechoic baf located at the rear of our facilities at 255 Hudson Road in;Stow, MA. Antennas undertest will be illuminated by a r&dio wave transmitfed from the source antenna mounted on aétower located 460 meters distant. The radiation pattern of the antenna under test will be measured by rotating it about its axes using the positioner and récording the response. Analysi% of the measured patterns will allow determination of%mainbeam symmetry, sidelobe structure, depth of nulls, relative gain, and front— to—back ratio, Comparing the gain of the test antenna with that of a standard gain horn due to the same illumination will allow the absolute gain of the test antenna to be

Exhibit No. 1 (continued) determined. By varying fihe frequency of the illuminating 7wave over a reasonable range the useable bandwidth of the testfantenna will be fou&d. Typical bandwidths for antennas of —this type are +/—6% agout some design center frequency.. The _specific obfiectives of this developmental station are to design, builé, test, and market phased arrays, reflector. antennas and radomes. _ This program is not strictly one of experimentation. Howéver, thé phased array antennas which Radant Technologies buifds are based on a novel technology, in the field of périodic apertures and as such do not need large quantities of expensive phase shifters. For this_reason they offer a reai chance to reduce the cost and weight of phased arrays and thereby increase the feasibility of their being used for radar systems, partiéulafly airborne systems. Increased use of phased arrays will increase the effectiveness of the radar systems because of the versatility of the arrays in the areas of multiple target tracking and rapid beam plagement .


Document Created: 2019-02-16 06:18:04
Document Modified: 2019-02-16 06:18:04
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