Abstract
A 94 GHz waveguide Rotman lens is described which can be
used to implement an amplitude comparison monopulse
RADAR. In transmit mode, adjacent dual beam ports are
excited with equal amplitude and phase to form a sum radiation
pattern, and in receive mode, the outputs of the beam port pairs
are combined using magic tees to provide a sum and a
difference signal which can be used to calculate an angular error
estimate for target acquisition and tracking. This approach
provides an amplitude comparison monopulse system which
can be scanned in azimuth and which has a low component
count, with no requirement for phase shift circuitry in the array
feed lines, making it suitable for mm-wave frequencies. A 12
input (beam ports), 12 output (array ports) lens is designed
using CST Microwave Studio, and the predicted results are
presented.
Original language | English |
---|---|
Title of host publication | Proceedings on the 36th ESA Antenna Workshop on Antennas and RF Systems for Space Science |
Place of Publication | Holland |
Publisher | ESA |
Number of pages | 5 |
Publication status | Published - 09 Oct 2015 |
Event | 36th ESA Antenna Workshop on Antennas and RF Systems for Space Science - Noordwijk, Netherlands Duration: 06 Oct 2015 → 09 Oct 2015 |
Conference
Conference | 36th ESA Antenna Workshop on Antennas and RF Systems for Space Science |
---|---|
Country/Territory | Netherlands |
City | Noordwijk |
Period | 06/10/2015 → 09/10/2015 |