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Author:
Costa, J.R.   Lima, E.B.   Fernandes, C.A.  


Journal:
IEEE Transactions on Antennas and Propagation


Issue Date:
2009


Abstract(summary):

This paper presents a new concept of steerable beam antenna composed by a dielectric lens which pivots in front of a single stationary moderate gain feed. The lens not only allows steering mechanically the beam in elevation and full azimuth, but further increases the gain up to 21 dBi. The solution is broad-band, including the entire international unlicensed spectrum from 57 GHz to 66 GHz. A fabricated prototype shows the possibility of tilting the beam from -45 degrees to +45 degrees for all azimuths with gain scan loss below 1.1 dB and radiation efficiency above 95%. The arrangement is very simple, it does not require rotary joints, it is low cost and compact, lens plus feed volume being of the order of 3 x 3 x 3 cm(3) with lens weight less than 10 g.


Page:
2926-2933


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