Compact 77 GHz 4×4 Patch Array Design Using Backside Metal Grounded GaAs-based IPD Technology

A compact 77 GHz 4 × 4 patch array using backside metal grounded GaAs-based integrated passive device (IPD) is realized in this paper. The efficiency of patch array is 83 % with size of 6.6 × 6.3 mm2. The proposed array system is well suited for millimeter-wave high-gain beam forming wireless communication systems.

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