77‐ GH z mmWave antenna array on liquid crystal polymer for automotive radar and RF front‐end module

Abstract

This paper introduces a low‐cost, high‐performance mmWave antenna array module at 77 GHz. Conventional waveguide transitions have been replaced by 3D CPW‐microstrip transitions which are much simpler to realize. They are compatible with low‐cost substrate fabrication processes, allowing easy integration of ICs in 3D multi‐chip modules. An antenna array is designed and implemented using multilayer coupled‐fed patch antenna technology. The proposed 16 × 16 array antenna has a fractional bandwidth of 8.4% (6.5 GHz) and a 23.6‐dBi realized gain at 77 GHz.

3D-Printed Quasi-Cylindrical Bragg Reflector to Boost the Gain and Directivity of cm- and mm-Wave Antennas

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79 GHz Active Array FMCW Radar System on Low-Cost FR-4 Substrates

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“…The development of high-gain antenna is essential for 100 Gbps long-distance communication. Array patch antennas have drawbacks such as the need for a high-performance dielectric substrate and low gain [1,2]. The gain of conventional horn antennas is ∼25 dBi.…”