Title :
Sidelobe Modulation Scrambling Transmitter Using Fourier Rotman Lens
Author :
Yunhua Zhang ; Yuan Ding ; Fusco, Vincent
Author_Institution :
Inst. of Electron., Commun. & Inf. Technol. (ECIT), Queen´s Univ. of Belfast, Belfast, UK
fDate :
7/1/2013 12:00:00 AM
Abstract :
A means for scrambling the digital modulation content in the sidelobes of a radio transmission from a steerable antenna array is presented. The method uses a Fourier transform beam-forming network simultaneously excited by an RF information stream and orthogonally injected interference streams. The proposed system is implemented using a Fourier Rotman lens and its operational characteristics are validated for a 10 GHz QPSK transmission.
Keywords :
Fourier transforms; antenna arrays; array signal processing; beam steering; lenses; quadrature phase shift keying; radio transmitters; radiofrequency interference; Fourier Rotman lens; Fourier transform beamforming network; QPSK transmission; RF information stream; digital modulation content; frequency 10 GHz; orthogonally injected interference stream; radio transmission; sidelobe modulation scrambling transmitter; steerable antenna array; Arrays; Interference; Lenses; Phase shift keying; Ports (Computers); Signal to noise ratio; Transmitters; Fourier transform beamforming; Rotman lens; physical layer security;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2013.2254453
