Direction finding interferometer internal calibration system

Details Direction finding interferometer internal calibration system Direction finding interferometer internal calibration system

1983-08-18

1985-01-15

Blum, Theodore M.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343442, 343 177, G01S 502

Patent

active

044941188

ABSTRACT:
An internal calibration system is provided for use with a direction finding interferometer which comprises a plurality of receiving antenna elements (A.sub.1, A.sub.2), a local oscillator (20), a master receiving channel means (41), a receiving channel means (42), and a phase meter (92). The internal calibration system comprises a master switch (22), a master power divider and switch assembly (31), a power divider and switch assembly (32), two transmission lines (M.sub.1, M.sub.2) connected to the master switch assemblies (31, 32), an inter-channel transmission line (T.sub.12) connected to the master power divider and switch assembly (31) and to the other power divider and switch assembly (32), and a plurality of couplers (51, 52).

REFERENCES:
patent: 4454513 (1984-06-01), Russell

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