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High Gain Substrate Integrated Waveguide Resonant Slot Antenna Array for mm-Wave Band Radio

This paper presents a new high gain longitudinal slot array antenna based on substrate integrated waveguide (SIW) technology for millimeter wave application, which can achieve wide impedance bandwidth. Three prototype with impedance bandwidth lower than -10 dB from 60 to 65 GHz with a minimum 14dBi and maximum 27dBi peak gain are designed. Computed analysis results of the three designed arrays show - 10 dB impedance bandwidths and realized gain of 18%-21dBi (8×8), 10%-22dBi (16×16), 8%-27dBi (32×16), respectively. Each part of the proposed array such as radiation and feed network parts can be optimized independently to increase the final design process. A prototype of array is analyzed in terms of S- parameters and radiation patterns. The simulated results around the frequency of 64-GHz demonstrate the validity of the design.