Title :
A High-Directivity Combined Self-Beam/Null-Steering Array for Secure Point-to-Point Communications
Author :
Shiroma, Grant S. ; Miyamoto, Ryan Y. ; Roque, Justin D. ; Cardenas, Joseph M. ; Shiroma, Wayne A.
Author_Institution :
Dept. of Electr. Eng., Hawaii Univ., Honolulu, HI
fDate :
5/1/2007 12:00:00 AM
Abstract :
A high-directivity combined self-beam/null-steering array for secure point-to-point binary phase-shift keying communications is introduced. The system provides high directivity and reduced probability of interception using just two antenna elements. Using quadrature phase-shift keying modulators allows for compact single-layer fabrication. The 2.4-GHz prototype is tested at interrogation angles of 0deg, -10deg, and +20deg, and demonstrates high signal-to-interference ratio directivity, completely disabling interception plusmn20deg from the direction of the interrogator. The system should find various applications where secure communications are required
Keywords :
UHF antennas; antenna phased arrays; digital communication; quadrature phase shift keying; radiocommunication; telecommunication security; 2.4 GHz; digital communication; microwave receivers; null-steering array; phase conjugation; phased arrays; point-to-point binary phase-shift keying communications; quadrature phase-shift keying modulators; secure point-to-point communications; self-beam steering array; single-layer fabrication; transponders; Digital signal processing; Fabrication; Jamming; Microwave communication; Phase modulation; Phase shift keying; Phased arrays; Prototypes; Testing; Transponders; Digital communication; microwave receivers; phase conjugation; phased arrays; transponders;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2007.895405
