CST – Computer Simulation Technology

A Rhombic Antenna Array Solution in eWLB Package for Millimeter-Wave Applications

Title:
A Rhombic Antenna Array Solution in eWLB Package for Millimeter-Wave Applications
Author(s):
Abouzar Hamidipour, Alexander Fischer, Linus Maurer, Andreas Stelzer
Source:
42nd European Microwave Conference (EuMC), 2012
Vol./Issue/Date:
November 2012
Year:
2012
Page(s):
205 - 208
Keywords:
rhombic antenna, eWLB package, millimeter-wave applications
Abstract:
A 77-GHz rhombic antenna as well as a rhombic antenna array designed for automotive radar applications are presented in 6×6mm2 and 12×8mm2 embedded wafer level ball grid array (eWLB) packages respectively. For the sake of antenna characterization, a 2×2mm2 monolithic microwave integrated circuit (MMIC) including a 77-GHz transceiver and a frequency multiplier is integrated in the package. The frequency multiplier generates the eighteenth harmonic of its input signal and scales a 4.25-GHz input signal to a 76.5-GHz output signal. This enables the antenna beam pattern characterization using a commercial signal source. As the dimensions of a singleelement antenna in package (AiP) hardly exceeds the dimension of the MMIC, an AiP typically suffers from an asymmetric beam pattern and limited gain. This paper proposes a highly directional rhombic antenna array solution with more than 10 dBi gain and a symmetric beam pattern.
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