Communications: directive radio wave systems and devices (e.g. – With particular circuit
Reexamination Certificate
2007-09-05
2009-11-24
Alsomiri, Isam (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
With particular circuit
C342S013000, C342S02500R
Reexamination Certificate
active
07623063
ABSTRACT:
In conventional phased array antennas, multiple signals that perform different functions, such as radar, electronic warfare (EW) and telecommunications, can each be simultaneously transmitted only through a different sub-aperture of the array. For maximum power and efficiency in conventional phased array antennas, the power amplifiers operate on one signal at a time. The present invention forms a common waveform from multiple signals for transmission through a common aperture of a phased array antenna. In wideband operations, waveform-shaping and amplitude-to-phase-modulation are used to transmit high-power diverse waveforms through every element of the array.
REFERENCES:
patent: 4721960 (1988-01-01), Lait
patent: 5150336 (1992-09-01), Sullivan et al.
patent: 5160936 (1992-11-01), Braun et al.
patent: 5940029 (1999-08-01), Ninomiya et al.
patent: 6008755 (1999-12-01), Ishikawa et al.
patent: 6856284 (2005-02-01), Cangiani
patent: 2002/0003502 (2002-01-01), Falk
patent: 2003/0095068 (2003-05-01), Purdy et al.
patent: WO 9702496 (1997-01-01), None
P.K. Hughes and J.Y. Choe, “Overview of Advanced Multifunction RF System (AMRFS),” Proceedings of the 2000 IEEE International Conference, May 2000.
W.M. Waters and B.R. Jarrett, “Bandpass Signal Sampling and Coherent Detection,” NRL Report 8520, Dec. 1981.
Chirex, H., “High Power Outphasing Modulation,” Proc. IRE, vol. 23, No. 11, Nov. 1935.
Hemmi et al. “Multifuctional Wide-Band Array Design,” IEEE Transactions on Antennas and Propagation, vol. 47, No. 3, pp. 425-431, Mar. 1999.
N. Fourikis, “Novel Shared-Aperture Phased Arrays”, Microwave and Optical Technology Letters, vol. 17, No. 3, pp. 189-192, Feb. 20, 1998.
Axness et al. “Shared Aperture Technology Development”, John Hopkins APL Technical Digest, vol. 17, No. 3, pp. 285-293, 1996.
Pozar et al, “A Shared-Aperture Dual-Band Dual-Polarized Microstrip Array,” IEEE Transaction on antennas and propagation, vol. 49, No. 2, pp. 150-157, Feb. 2001.
Cantrell Ben
Tai-Lin Ching
Alsomiri Isam
Karasek John J.
Legg L. George
The United States of America as represented by the Secretary of
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