Integrated waveguide tuner
View Patent ↗A wafer probe-to-waveguide adapter is transformed to a load pull device by integrating in the straight section of the waveguide a two-slug tuner with fixed penetration into diametral slots in the waveguide controlled by linear stepper actuators crossing over and sharing the same section of the waveguide.
1. A wafer probe to waveguide adapter comprising:
a bent waveguide transmission line between a waveguide flange and the wafer probe and
an integrated automated slide screw tuner, having two remotely controlled tuning probes;
wherein
the waveguide transmission line has two broad walls, a top broad wall, and a bottom broad wall, and two narrow sidewalls, and
two slots parallel to a longitudinal axis of the waveguide transmission line, placed facing each-other, one on the top and one on the bottom broad wall;
wherein
the slots are positioned offset of a center line of the waveguide transmission line by at least a thickness of the tuning probes,
and wherein
two remotely controlled stepper actuators A# 1 and A# 2 are mounted opposite to each-other, one on the top broad wall and one on the bottom broad wall, and control associated tuning probes P# 1 and P# 2 , which are inserted diametrical into the slots at a fixed penetration into and move along the waveguide transmission line, sharing this way a section of the waveguide transmission line;
and wherein
actuator A# 1 moves probe P# 1 to a position X 1 , and
actuator A# 2 moves probe P# 2 to a position X 2 .
2. The wafer probe to waveguide adapter of claim 1 ,
wherein
the slots are at least one half of a wavelength (λ/2) long at a lowest frequency of operation (Fmin).
3. The wafer probe to waveguide adapter of claim 1 ,
wherein
the tuning probes are at least partly metallic or metallized rods.
4. The wafer probe to waveguide adapter of claim 1 ,
wherein
the tuning probes are at least partly metallic or metallized blocks.
5. The wafer probe to waveguide adapter of claim 1 ,
wherein
the tuning probes traverse the slots in a contactless manner.