Number | Name | Date | Kind |
---|---|---|---|
3991390 | Conroy | Nov 1976 | |
5774801 | Li et al. | Nov 1976 | |
6018277 | Vaisanen | Jan 2000 |
Entry |
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IEEE Transactions on Parts, Hybrids, and Packaging, "Wiggly Phase Shifters and Directional Couplers for Radio-Frequency Hybrid-Microcircuit Applications", Dec., 1976, pp. 317-323. |
Microwave Journal, "Optimization of TEM Mode Tapered Symmetrical Couplers", S. Seward et al, Dec., 1985, pp. 113-119. |