Multi-mode tracking antenna feed system

Details Multi-mode tracking antenna feed system Multi-mode tracking antenna feed system

1981-01-19

1983-12-13

Gensler, Paul L.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

333122, 333135, 333137, 343786, G01S 1344

Patent

active

044207565

ABSTRACT:
a tri-mode coupler (80) for developing from a received signal including three waveguide propagation modes the three tracking signals (i.e. sum signal, elevation signal, and azimuth signal) used in a high-frequency monopulse tracking system and for transmitting a signal at a different frequency, the coupler comprises broadband means such as a two-arm turnstile junction (84) coupling a first circular waveguide section (82) to an E-plane folded hybrid junction (90) for separating out one waveguide mode of the received signal and receiving the signal to be transmitted, and a second circular waveguide section (86) of smaller diameter than the first waveguide section and coupling the latter section to an additional E-plane folded hybrid junction (88) for separating out the two additional waveguide modes of the received signal.

REFERENCES:
patent: 2965898 (1960-12-01), Lewis
patent: 3274604 (1966-09-01), Lewis
patent: 3369197 (1968-02-01), Giger et al.
patent: 3423756 (1969-01-01), Foldes
patent: 3569870 (1971-03-01), Foldes
patent: 3696434 (1972-10-01), Sciambi, Jr.
patent: 3758880 (1973-09-01), Morz
patent: 4047128 (1977-09-01), Morz

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