Multishaped beam direct radiating array antenna

Details Multishaped beam direct radiating array antenna Multishaped beam direct radiating array antenna

H - Electricity

01

Q

H01Q 21/00 (2006.01)

Patent

CA 2143276

Multishaped beam direct radiating array antenna, essentially constituted (Fig. 1) with a network on which high power beam forming sub-networks (3), are disposed; said network (2) is interposed between radiating elements (1) and RF power amplifiers (4). This antenna is in addition constituted with a traditional network in which power combiners (5), phase shifters (6) and interconnection lines (11) are at their turn positioned. The most significant feature essentially resides in the fact that, with the help of a high power beam forming network (2), suitably designed, the correct amplitude and phase values, at radiating elements (1) level, may be achieved without differentiating the RF power amplifier (4) output levels, thus keeping its efficiency as high as possible. One of the advantages this configuration presents is the possibility to utilise only one antenna in comparison of the previous techniques in which the same results were obtained utilising many radiating panels. Though, this antenna configuration offers more simplicity, lower costs and a good reliability. The invention lies in the field of multishaped beam, antennas and finds its application specially in the space communications.

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