Radio transmission system and a radio apparatus for use in such

Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array

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342152, 455 523, H01Q 324

Patent

active

057512493

ABSTRACT:
A radio transmission system comprises a phased-array radio apparatus for optimizing reception in a multipath transmission environment. In the phased-array radio apparatus, phase shifting is performed after down-conversion of received RF signals. Phase control and beam-forming are simple. By applying a zero-IF or low-IF receiver structure, the complete structure can easily be fully integrated.

REFERENCES:
patent: 3740750 (1973-06-01), Moulton
patent: 4346382 (1982-08-01), Bosc et al.
patent: 4568940 (1986-02-01), Diamond
patent: 4675880 (1987-06-01), Davarian
patent: 4789861 (1988-12-01), Baggett et al.
patent: 5278564 (1994-01-01), Groenenboom
"Analysis and Design of Analog Integrated Circuits", Section Edition, by Paul R. Gray et al, Wiley & Sons 1984, pp. 593-600.

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