Low profile, dual polarized/pattern antenna

Communications: radio wave antennas – Antennas – Spiral or helical type

Reexamination Certificate

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C343S853000

Reexamination Certificate

active

06864856

ABSTRACT:
A spiral antenna system optimized to transmit and/or receive linearly polarized signals and circularly polarized signals. The antenna system includes a spiral antenna and a circuit for exciting the spiral antenna to transmit or receive linearly polarized and circularly polarized signals simultaneously.

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Balanis, C.A.,Antenna Theory Analysis and Design, 2nd Edition, Pub. John Wiley & Sons, New York, pp. 416-421 (1997).
Corzine, et al.,Four-Arm Spiral Antenna, Norwood, MA, Pub. Artech House, pp. 5-78 (1990).
Nakano, H., et al., “A Spiral Antenna Backed by a Conducting Plane Reflector,”IEEE Transactions on Antennas and Propagation, vol. AP-34, No. 6, pp. 791-796 (Jun. 1986).
Wang, J.J.H., et al., “Design of Multioctave Spiral-Mode Microstrip Antennas,”IEEE Transactions on Antennas and Propagation, vol. 39, No. 3, pp. 332-335 (Mar. 1991).

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