CST – Computer Simulation Technology

Ultra-Wideband Low-Cost Phased-Array Radars

Title:
Ultra-Wideband Low-Cost Phased-Array Radars
Author(s):
Christopher T. Rodenbeck, Sang-Gyu Kim, Wen-Hua Tu, Matthew R. Coutant, Seungpyo Hong, Mingyi Li, Kai Chang
Source:
IEEE Transactions on Microwave Theory and Techniques
Vol./Issue/Date:
Vol. 53, No. 12., Dec. 2005
Year:
2005
Page(s):
3697 - 3703
Keywords:
Antenna arrays, monolithic microwave integrated circuits (MMICs), phased arrays, ultra-wideband radar
Abstract:
Emerging radar applications require phased arrays that can operate over wide bandwidths to support multiband/ multifunction operation. In response to that need, this paper presents a cost-effective implementation for extremely wide-band phased-array radars. Two designs are demonstrated, one operating from 3 to 12 GHz and the other operating from 8 to 20 GHz. These designs incorporate ultra-wideband antipodal tapered slot antennas, a novel cross-polarization suppressed array architecture, piezoelectric true-time-delay phase shifters, and broad-band high-power monolithic amplifiers. The resulting systems provide target detection and beam steering over the complete operating bandwidths. These results exceed the state-of-the-art for phased-array radars in terms of bandwidth and cost and should have direct applications in the development of ultra-wideband and multifunction radar systems.
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