Waveguide slot array antenna

Abstract

Abstract PURPOSE:To improve the electric characteristic and also to attain light weight by utilizing the metal plating technology and the etching technology so as to process a slot with high accuracy. CONSTITUTION:A thin metallic film 7 is formed to the surrounding of a dielectric cylinder 6 having nearly the same outer size as the inner size of a waveguide in matching with the operating frequency by means of the metal plating technology. The thin film 7 is adhered uniformly onto the outer circumference of the dielectric cylinder 6 up to a sufficient thickness for the thin film 7 in this case and the waveguide 1 is formed. Then a mask having a slot pattern required for a slot array antenna is formed and the etching is applied to the waveguide 1 by using said mask so as to process a shunt slot 2 and an edge slot 4 onto the waveguide 1.

Inventors

• 👤 Koichi Kitajima
• 👤 北島　耕一

Bibliographic Details