Device for coupling RF power into a waveguide
A device for coupling RF power into a waveguide includes a push-pull output stage that includes an input and an output, a filter arrangement that is connected to the output of the push-pull output stage, and an induction loop that is connected to the filter arrangement is provided.
1. A device for coupling RF power into a waveguide, comprising:
a push-pull output stage having an input and an output;
a filter arrangement that is connected to the output of the push-pull output stage; and
an induction loop that is connected to the filter arrangement.
2. The device as claimed in claim 1 , wherein the filter arrangement comprises a first harmonic filter and a second harmonic filter.
3. The device as claimed in claim 2 , wherein the first harmonic filter provides a fixed finite impedance for a fundamental oscillation with a fixed frequency.
4. The device as claimed in claim 3 , wherein the first harmonic filter acts as an open line termination for a third harmonic of the fixed frequency.
5. The device as claimed in claim 3 , wherein the second harmonic filter acts as a short-circuited line termination for a second harmonic of the fixed frequency.
6. The device as claimed in claim 3 , wherein the filter arrangement induces a reflection factor of at least 0.8 for a third harmonic of the fixed frequency.
7. The device as claimed in claim 3 , wherein the filter arrangement induces a reflection factor of less than −0.8 for a second harmonic of the fixed frequency.
8. A waveguide arrangement having a waveguide and a device as claimed in claim 1 .
9. The waveguide arrangement as claimed in claim 8 , wherein the waveguide arrangement comprises two devices as claimed in claim 1 .
10. The waveguide arrangement as claimed in claim 8 , wherein the waveguide is a coaxial waveguide.
11. The waveguide arrangement as claimed in claim 8 , wherein the waveguide is a hollow conductor.
12. The waveguide arrangement as claimed in claim 8 , wherein the waveguide is connected to an RF cavity.
13. The device as claimed in claim 1 , further comprising a coupling plate, wherein the induction loop is arranged on the coupling plate, further wherein the coupling plate is intended to be arranged in an opening of a wall of a waveguide.