Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1989-09-01
1991-10-29
Wimer, Michael C.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343818, 343819, 343821, H01Q 19185
Patent
active
050619446
ABSTRACT:
This Yagi-Uda-type antenna includes also a sleeve embracing the dipole. The sleeve may be a closed cylindrical element surrounding the dipole or it may comprise a pair of discrete elements forming an "open sleeve". The dipole, sleeve, reflector, and director elements may be in filamentary form, or they may be fabricated from stripline.
REFERENCES:
patent: Re24413 (1958-01-01), Weiss
patent: 2530048 (1950-11-01), Driscoll
patent: 2580798 (1952-01-01), Kolster
patent: 2821711 (1958-01-01), Lo
patent: 3096520 (1963-07-01), Ehrenspeck
patent: 3845490 (1974-10-01), Manwarren et al.
patent: 4604628 (1986-08-01), Cox
Proceedings of the IEEE, vol. 59, No. 12, Dec. 1971 entitled, "Optimization Techniques for Antenna Arrays", by Cheng.
IEEE Transactions on Antennas and Propagation, vol. AP-21, No. 5, Sep. 1973, "Optimum Element Spacings for Yagi-Uda Arrays", by Cheng and Chen.
IEEE Transactions on Antennas and Propagation, vol. AP-23, No. 1, Jan. 1975, "Optimum Element Lengths for Yagi-Uda Arrays", by Cheng and Chen.
Cyr Russell J.
Powers Richard L.
Crooks Robert G.
Lockheed Sanders, Inc.
Wimer Michael C.
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