Patent ID: 7719458

Claim:
A radar system having first and second modes of operation comprising: a. a dual antenna assembly comprising first and second antennas mounted generally perpendicularly in the vertical plane with respect to each other and being designed for use in said first and second modes respectively, said first antenna being a scanning antenna and said second antenna being a stowed antenna during operation in said first mode, and said first antenna being a stowed antenna and said second antenna being a scanning antenna during operation in said second mode, said antennas having respective first and second antenna waveguides coupled to a waveguide switch operable to divert RF energy to or from either of said first or second antenna waveguide, said waveguide switch coupled to a common waveguide, said first and second antennas operable for coupling said RF energy to a transmit medium, and for coupling reflected RF energy from transmit medium to said first or second antenna waveguide; b. azimuth and elevation motors engaged with said dual antenna assembly to allow rotation of said first antenna in two planes during said first mode of operation and to allow rotation of said second antenna in two planes during said second mode of operation; c. respective position indicators for determining azimuth angle and elevation angle of said dual antenna assembly; d. an RF transmitter coupled to said common waveguide for transmitting said RF energy; e. an RF receiver operable to receive reflected RF energy conveyed thereto by said common waveguide coupled thereto by either of said first or second antennas; and f. a control processor configured with control logic operable to control the functions of said radar system.