Foreshortened log-periodic dipole antenna

Details Foreshortened log-periodic dipole antenna Foreshortened log-periodic dipole antenna

1990-09-24

1991-10-15

Wimer, Michael C.

Communications: radio wave antennas

Antennas

Logarithmically periodic

343793, H01Q 1110

Patent

active

050578502

ABSTRACT:
A foreshortened log periodic antenna comprising variously configured dipole elements and a tapered feedline is further size reduced with an improved configuration of the dipole with the lowest resonant frequency. By substantially increasing the thickness of that dipole, the overall length of the already size-reduced dipole is further decreased by 8% to 10%.

REFERENCES:
patent: 3543277 (1970-11-01), Pullara
patent: 3732572 (1973-05-01), Kuo
patent: 4342035 (1982-07-01), Anderson et al.
patent: 4673948 (1987-06-01), Kuo
patent: 4907011 (1990-03-01), Kuo
D. T. Stephenson, P. E. Mayes, "Log-Periodic Helical Dipole Array," 1963 WESCON Digest.
C. C. Bantin, K. G. Balmain, "Study of Compressed Dipole Antennas," IEEE Transactions on Antennas and Propagations, vol. AP-18, No. 2, Mar. 1970, pp. 195-203.
S. C. Kuo, "Size-Reduced Log-Periodic Dipole Array Antenna," Microwave Journal (GB); vol. 15, No. 12, pp. 27-33, 1972.
D. F. DiFonzo, "Reduced Size Log-Periodic Dipole Antennas," Microwave J., vol. 7, pp. 37-43, Dec. 1964.
E. Young, "Foreshortened Log-Periodic Dipole Array," WESCON Digest (1963).

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