© Copyright MegaWave Corporation
Last Updated: Feb 3, 2003
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Wearable Antenna Designs
| LBE Integrated Shoulder Antenna
(LISA) |
MegaWave’s LISA was designed to operate in the
400-470 MHz frequency band to support the Military Operations in Urban Terrain
Program. LISA is fully integrated into the standard Load Bearing Equipment
and is fed from a single miniature coaxial cable that exits the LBE in the
rear as shown in the picture. Since LISA does not protrude from the LBE,
it provides the soldier with a completely conformal, no snag design. LISA
excites both vertical and horizontal polarization with approximately equal
magnitudes for optimum war fighter communication in all attitudes from standing
to prone.
Designed to
replace a standard radio mounted "rubber duck" antenna, the measured gain
of LISA was found to exceed that of the waist mounted "rubber duck" by as
much as 19dB for some polarization. The worst case gain for LISA compared
to the "rubber duck" for any polarization was found to be -3dB. Minimal horizontal
and vertical components of LISA are anti correlated resulting in a total field
pattern which is nearly omnidirectional. Although LISA was designed for the
400-470 MHz band, is has good VSWR characteristics from 350-660 MHz and also
in cell band. LISA can be designed to work over wider or other frequency
ranges. MegaWave is currently developing an external version of LISA that
will clip on the exterior of the LBE.
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