DEVICE FOR MULTIPLE USE OF RECEIVING ANTENNAE Russian patent published in 2009 - IPC H01Q1/26 

FIELD: physics; radio.

SUBSTANCE: present invention relates to radio engineering and is meant for multiple use of receiving antennae, for example, on radio reception centres. The device for multiple use of receiving antennae consists of N antennae 1, where N>2, N frequency-dividing multiplexers 2, N units of adjustable attenuators 3, N units of band-pass amplifiers 4, N units of controlled power dividers 5, L units of controlled frequency band switches 6, where L>2, L units of controlled antenna switches 7 and L radio-receiving units 8. Due to use of controlled power dividers 5, as well as commutators for selecting frequency bands and antennae in radio-receiving unit 8, which select frequency bands and antennae, there is provision, among other features, of simultaneous operation of several receivers on one antenna in different frequency bands. The antenna and frequency band can be automatically changed, depending on the operating frequency of the receiver due to effect of control signals from radio-receiving unit 8.

EFFECT: increased noise immunity.

3 cl, 7 dwg