Number | Date | Country | Kind |
---|---|---|---|
90 08491 | Jul 1990 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
3665480 | Fassett | May 1972 | |
3771075 | Phelon | Nov 1973 | |
3974462 | Fassett | Aug 1976 | |
4952895 | Quan | Aug 1990 | |
5005019 | Zaghloul et al. | Apr 1991 |
Number | Date | Country |
---|---|---|
0180011 | May 1986 | EPX |
843042 | Jun 1981 | SUX |
8700350 | Jan 1987 | WOX |
Entry |
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IRE Transactions on Microwave Theory and Techniques, vol. 6, No. 4, Oct. 1958, New York, USA, pp. 403-410; J. K. Shimuzu et al.: "Coupled-transmission-line directional couplers". |
IEEE Transactions on Microwave Theory and Techniques, vol. 34, No. 12, Dec. 1986, New York, USA, pp. 1457-1463; E. Yamashita et al.: "Analysis method for generalized suspended striplines". |