A Low-Profile And High-Gain Continuous Transverse Stub Antenna Using Pcb-Air Hybrid Technology
2016 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM(2016)
Abstract
We present the design and simulation of a highgain low-profile Continuous Transverse Stub (CTS) antenna array excited by a parallel-plate PCB-made Beam Forming Network (BFN). The radiating part consists of 32 radiating slots fed in parallel by hollow parallel-plate waveguides. The pillbox coupler exciting the CTS array is designed on a dual-layer organic dielectric stack-up using SIW technology. This PCB-air hybrid assembly technique reduces the fabrication complexity of the entire antenna system, and simultaneously allows minimizing the total insertion loss. The antenna is matched below -19dB over the 71-86GHz band, and its gain remains larger than 30dBi within a +/-9 degrees scanning range across the same frequency band. The overall antenna efficiency is higher than 50%. This flat antenna solution is attractive for high-performance backhaul communication systems in E-band.
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Key words
Broadband antennas,parallel plate waveguide (PPW),slot arrays,waveguide arrays
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