Patent ID: 8125373

Claim:
For use in conjunction with a microwave antenna having a radiator array configured to scan in a horizontal direction, a method for scanning in the vertical direction comprising the steps of: a) transmitting a first FMCW microwave signal having a first bandwidth at a first microwave center frequency, b) receiving an echo of said first microwave signal, if any, on the radiator array, c) thereafter transmitting a second FMCW microwave signal having a second bandwidth at a second microwave center frequency, said first and second center frequencies being spaced apart in frequency by a frequency greater than said first bandwidth and also greater than said second bandwidth, d) receiving an echo of said second microwave signal, if any, on the radiator array, e) processing the receipt of such echo or echoes to identify the location or locations of an object or objects causing the echo or echoes and communicating such location or locations to a user, and reiterating steps a)-e).