A Compact, High-Radiation Efficient, and High-Gain Micro-Strip Patch Antenna Array for Millimeter Wave Applications
In this article, a design of a compact, high-radiation efficient, high-gain 4 × 4 micro-strip patch antenna array is proposed. The proposed micro-strip patch antenna array configuration is optimized to operate at millimeter wave frequency of 42 GHz. The design combines both the series- and the parallel-fed structures to form an array. The combined structure exhibits high performance in terms of gain (8.04 dB), reflection coefficient (−24.2 dB), and radiation efficiency (87.7%) and is ideal to use for the applications at millimeter wave. The excitation to the array structure is provided by a single co-axial feed placed at the center of the 2D planar arrangement.
KeywordsMillimeter wave Series fed Parallel fed 2D planar arrangement Co-axial feed
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