Compact Linear Crossed Slot Antenna Array with High Side Lobe Suppression

This paper presents the design of a compact, printed linear array of eight dual polarized slot antennas fed by microstrip lines. The Dolph-Chebyshev amplitude distribution, requested for the high side lobe suppression, is implemented by microstrip corporative feeding network consisting of feeding lines and quarter-wave impedance transformers. The achieved gain of 14.5 dBi with side lobe suppression greater than 20 dB and input reflection coefficient S
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below -10 dB in the frequency range of 1.2 GHz, makes the proposed antenna a very good candidate for applications in K-band wireless communication systems.