Presentation Information
[B-1B-51]SIW End-Fire Phased Array Antenna in the 300 GHz Band
△Prabir Garu1, Namuun Amgalan1, Yoshiki Sugimoto1, Kunio Sakakibara1, Yuji Tanaka1 (1. Nagoya Institute of Technology)
Keywords:
Phased array,300 GHz band,SIW Anti-podal Vivaldi antenna,Corrugation,End-fire
The 300 GHz band offers massive bandwidth for sub-
THz communications but suffers from high path loss.
High-gain phased arrays with electronic beam scanning
are critical to overcome this challenge. The antipodal
Vivaldi antenna (AVA) is ideal due to its ultra-wideband
end-fire characteristics, but 300 GHz designs face severe
mutual coupling and substrate surface waves [1]. This
paper presents an AVA phased array for the 300 GHz band
that utilizes a 1×4 linear array with edge corrugations to
suppress surface waves and improve beam patterns. The
edge corrugations improve antenna gain and radiation
patterns without increasing its size.
An SIW end-fire phased array AVA antenna is designed
on a multilayer substrate, that achieves an impedance
bandwidth of 60 GHz, isolation below -14 dB, and H-plane
beam scanning up to ±30 deg. at 275 GHz.
THz communications but suffers from high path loss.
High-gain phased arrays with electronic beam scanning
are critical to overcome this challenge. The antipodal
Vivaldi antenna (AVA) is ideal due to its ultra-wideband
end-fire characteristics, but 300 GHz designs face severe
mutual coupling and substrate surface waves [1]. This
paper presents an AVA phased array for the 300 GHz band
that utilizes a 1×4 linear array with edge corrugations to
suppress surface waves and improve beam patterns. The
edge corrugations improve antenna gain and radiation
patterns without increasing its size.
An SIW end-fire phased array AVA antenna is designed
on a multilayer substrate, that achieves an impedance
bandwidth of 60 GHz, isolation below -14 dB, and H-plane
beam scanning up to ±30 deg. at 275 GHz.