Communications: radio wave antennas – Antennas – High frequency type loops
Patent
1977-04-04
1980-09-16
Lieberman, Eli
Communications: radio wave antennas
Antennas
High frequency type loops
343890, H01Q 1114
Patent
active
042233151
ABSTRACT:
Improved performance of a stacked array of short helical elements is achieved by using average spacing between elements which is less than one wavelength. Still better performance is obtained by using as antenna elements structures comprising combinations of Z-shaped radiators.
REFERENCES:
patent: 2521550 (1950-09-01), Smith
patent: 3299429 (1967-01-01), McMullin
patent: 3474452 (1969-10-01), Bogner
patent: 3576567 (1971-04-01), Shively
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