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Electromagnetically coupled curl antenna

Electromagnetically coupled curl antenna

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The radiation characteristics of a curl antenna excited by an L-wire are presented. The frequency bandwidth for a 3 dB axial ratio criterion is ~6%, with a nearly resistive input impedance of 75 Ω. An array antenna of the 36 curls shows a gain of 23 dB with an aperture efficiency of 73%.

Inspec keywords: microwave antenna arrays; frequency response

Other keywords: EM coupled curl antenna; array antenna; 23 dB; L-wire excitation; radiation characteristics; frequency bandwidth; electromagnetic coupling; 73 percent

Subjects: Antenna arrays

References

    1. 1)
      • S. Mano , T. Katagi . A method of measuring amplitude and phaseof each radiating element of a phased array antenna. Trans. IECE Japan , 555 - 560
    2. 2)
      • H. Nakano , S. Okuzawa , K. Ohishi , H. Mimaki , J. Yamauchi . A curlantenna. IEEE Trans. AP , 11 , 1570 - 1575
    3. 3)
      • H. Nakano , Yamashita . (1995) Analysis methods for electromagnetic wave problems.
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