WR62 Bi-Directional (unterminated) Coupler, 3 dB coupling, both coupled arm ports turn out on 90 deg. E plane bends, and either may \be terminated

WR62 Bi-Directional (unterminated) Coupler, 3 dB coupling, both coupled arm ports turn out on 90 deg. E plane bends, and either may \be terminated