Spatial power-combining devices with segmented waveguides and antennas
Spatial power-combining devices and antenna assemblies for spatial power-combining devices are disclosed. The disclosure relates to spatial power-combining devices with segmented waveguides and antennas. The spatial power-combining devices may be designed for high efficiency, high or low frequency ranges, ultra-wide bandwidth operation, and high output power. A spatial power-combining device may include a plurality of amplifiers, an output center waveguide including an output inner housing and an output outer housing, and an output coaxial waveguide. The output center waveguide may form a plurality of output center waveguide segments that are discontinuous with each other. Each output center waveguide segment may include a different portion of the output inner housing and the output outer housing. An antenna for a spatial power-combining device may include a plurality of antenna segments, each of which includes a different portion of a signal conductor and a ground conductor of the antenna.
1. A spatial power-combining device comprising:
a plurality of amplifiers;
an output center waveguide section configured to concurrently receive amplified signals from the plurality of amplifiers, wherein the output center waveguide section comprises an output inner housing, an output outer housing, and a plurality of output antennas; and
an output coaxial waveguide section configured to receive the amplified signals from the output center waveguide section;
wherein the output center waveguide section forms a plurality of output center waveguide segments that are discontinuous with each other, and each output center waveguide segment of the plurality of output center waveguide segments comprises a different portion of the output inner housing, a different portion of the output outer housing, and a different output antenna segment of an individual output antenna of the plurality of output antennas.
2. The spatial power-combining device of claim 1 wherein the output inner housing comprises a plurality of output signal conductors and the output outer housing comprises a plurality of output ground conductors.
3. The spatial power-combining device of claim 2 wherein the plurality of output signal conductors and the plurality of output ground conductors form an output antenna assembly.
4. The spatial power-combining device of claim 2 wherein each output center waveguide segment of the plurality of output center waveguide segments comprises a different portion of the plurality of output ground conductors and a different portion of the plurality of output signal conductors.
5. The spatial power-combining device of claim 1 wherein the output inner housing comprises a plurality of output inner housing segments and the output outer housing comprises a plurality of output outer housing segments.
6. The spatial power-combining device of claim 5 wherein the plurality of output inner housing segments are mechanically attached to each other and the plurality of output outer housing segments are mechanically attached to each other.
7. The spatial power-combining device of claim 1 further comprising:
an input center waveguide section configured to concurrently guide an input signal to the plurality of amplifiers, wherein the input center waveguide section comprises an input inner housing and an input outer housing.
8. The spatial power-combining device of claim 7 wherein the input center waveguide section forms a plurality of input center waveguide segments that are discontinuous with each other, wherein each input center waveguide segment of the plurality of input center waveguide segments comprises a different portion of the input inner housing and a different portion of the input outer housing.
9. The spatial power-combining device of claim 8 further comprising an input coaxial waveguide section configured to guide the input signal to the input center waveguide section.
10. The spatial power-combining device of claim 9 wherein the input center waveguide section and the input coaxial waveguide section are formed completely of metal.
11. The spatial power-combining device of claim 8 wherein the input inner housing comprises a plurality of input signal conductors and the input outer housing comprises a plurality of input ground conductors.
12. The spatial power-combining device of claim 11 wherein each input center waveguide segment of the plurality of input center waveguide segments comprises a different portion of the plurality of input ground conductors and a different portion of the plurality of input signal conductors.
13. The spatial power-combining device of claim 1 wherein the output center waveguide section and the output coaxial waveguide section are formed completely of metal.
14. The spatial power-combining device of claim 1 wherein the plurality of amplifiers comprises a plurality of Monolithic Microwave Integrated Circuit (MMIC) amplifiers.
15. An antenna for a spatial power-combining device, the antenna comprising:
a signal conductor;
a ground conductor; and
a plurality of antenna segments that are discontinuous with each other;
wherein each antenna segment of the plurality of antenna segments comprises a different portion of the signal conductor and a different portion of the ground conductor.
16. The antenna of claim 15 wherein the plurality of antenna segments comprises:
a first antenna segment; and
a second antenna segment;
wherein the signal conductor and the ground conductor are spaced farther apart from each other in the first antenna segment than in the second antenna segment.
17. The antenna of claim 15 wherein the signal conductor and the ground conductor are formed completely of metal.
18. The antenna of claim 15 wherein the signal conductor and the ground conductor are entirely separated by air.
19. The antenna of claim 16 wherein the first antenna segment of the plurality of antenna segments comprises a first tuning feature and the second antenna segment of the plurality of antenna segments comprises a second tuning feature.
20. The antenna of claim 19 wherein the first tuning feature is different than the second tuning feature.