Number | Name | Date | Kind |
---|---|---|---|
3906509 | DuHamel | Sep 1975 | |
4011567 | Ben-dov | Mar 1977 | |
4295144 | Matta et al. | Oct 1981 | |
4554554 | Olesen et al. | Nov 1985 | |
4686536 | Allcock | Aug 1987 | |
4780727 | Seal et al. | Oct 1988 | |
5170176 | Yasunaga et al. | Dec 1992 | |
5255005 | Terret et al. | Oct 1993 | |
5329287 | Strickland | Jul 1994 | |
5349365 | Ow et al. | Sep 1994 | |
5406693 | Egashira et al. | Apr 1995 | |
5521610 | Rodal | May 1996 | |
5604972 | McCarrick | Feb 1997 | |
5635945 | McConnell et al. | Jun 1997 | |
5949385 | Asakura et al. | Sep 1999 | |
6011524 | Jervis | Jan 2000 |
Entry |
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C.C. Kilgus, “Resonant Quadrifilar Helix Design”, The Microwave Journal, Dec. 1970, pp. 49-54. |
Senglee Foo, “A Quadrifilar Helical Anenna for Low Elevation GPS Applications”, The Microwave Journal, Jan. 1998, pp. 179-184. |
Richard C. Johnson and Henry Jasik, Antenna Engineering Handbook, McGraw-Hill Book Company (Toronto 1984), pp. 28-6 to 28-11 and 28-19. |
Richard C. Johnson and Henry Jasik, Antenna Engineering Handbook, McGraw-Hill Book Company (Toronto, 1984), pp. 13-19 to 13-20. |