Low difference pattern sidelobe pattern circuit

Details Low difference pattern sidelobe pattern circuit Low difference pattern sidelobe pattern circuit

1992-04-07

1993-08-03

Issing, Gregory C.

Communications: directive radio wave systems and devices (e.g.,

Directive

Utilizing correlation techniques

342153, G01S 316, G01S 1300

Patent

active

052333590

ABSTRACT:
An antenna distribution network for an antenna array which provides independent sum and difference aperture excitations and enables a reduction in the difference channel radiation sidelobe levels. The circuit operates to smooth out the step discontinuity in the complex signal excitation of the radiating aperture in the difference mode by reducing considerably the amplitude of at least two corresponding elements located on opposite sides of the array center. A circuit of four four-port hybrid devices is employed, and introduces no effect when in the sum mode.

REFERENCES:
patent: 3803624 (1974-04-01), Kinsey

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