High Gain Antenna Design For Inter
Satellite   Link   At Millimeter Range

A Novel high gain antenna at millimeter band (57-74 GHz) is presented. In this paper, two antenna designs are proposed one is Taper slot structured antenna and other is 3D waveguide structured horn antenna. Both these models achieved the high gain. Taper slot antenna with an array achieved a gain of 11 dB and single element horn antenna with a gain of 13 dB. The radiation pattern is found with narrow beam width of 20 degree. Wilkinson power divider is used in taper slot antenna with linear array of 1X4 arrangement to achieve a gain of 24 dB. For Horn antenna radiation efficiency of 86 is achieved. Taper slot antenna incorporated substrate integrated waveguide (SIW) structure as a vias to achieve better radiation efficiency. 7GHz is the bandwidth. Further Link budget calculations are presented. |S11| is less than -12 dB. Isolation of 15 dB is achieved. Impedance of 50 ohm micro strip line is considered. RT duroid 5880 material is used in designing an antenna. These designs are well suitable for small satellites with are operated above the earth surface and can create a radio links to form a satellite network. Theoretically analyzed the performance of tapered slot Linear Array and assumed that it is mounted on the small satellite

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