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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