Hai-Feng CHENG, Xiang ZHU, Fang HOU, San-Ming HU, Jian GUO, Gui-Xiong SHI. W-band power combining amplifier based on silicon micromachined waveguide[J]. Journal of Infrared and Millimeter Waves, 2021, 40(2): 178
- Journal of Infrared and Millimeter Waves
- Vol. 40, Issue 2, 178 (2021)
Fig. 1. Fabrication process of silicon waveguide
Fig. 2. Model of the H-T splitter/combiner
Fig. 3. Simulated results of the H-T splitter/combiner
Fig. 4. Model of the 3 dB coupler
Fig. 5. Simulated results of the 3 dB coupler
Fig. 6. Model of the 4-way splitter/combiner
Fig. 7. Sectional view of the 4-way splitter/combiner
Fig. 8. Simulated results of the 4-way splitter/combiner
Fig. 9. Photographs of the fabricated 4-way splitter/combiner and the test fixture
Fig. 10. microscope view of waveguide port
Fig. 11. The insertion and return losses of the silicon splitter /combiner
Fig. 12. The typical tested result of W band GaN MMIC
Fig. 13. The structure of the silicon combined module
Fig. 14. The silicon combined PA module
Fig. 15. The test platform of the silicon combined PA module
Fig. 16. The measured output power, PAE and combining efficiency
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