Circularly polarised higher-order rectangular dielectric-resonator antenna

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Circularly polarised higher-order rectangular dielectric-resonator antenna

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Published

A circularly polarised, rectangular, low-profile, dielectric-resonator antenna is presented which is fed by a 50 Ω microstrip line through a single aperture. The measured 3 dB axial-ratio bandwidth in the boresight direction is 14.35 – 14.80 GHz (3%). At 14.75 GHz, the input |s11| is -28 dB; the measured pattern in one elevation plane decreases with increasing thetas but the axial ratio is close to 3 dB over 110°; in the orthogonal elevation plane, the axial ratio increases more rapidly with thetas.

Inspec keywords: dielectric resonators; electromagnetic wave polarisation; antenna radiation patterns; microstrip antennas; antenna feeds

Other keywords: axial-ratio bandwidth; SHF; low-profile antenna; 14.35 to 14.80 GHz; circularly polarisation; rectangular dielectric-resonator antenna; single aperture; microstrip line; higher-order type

Subjects: Other dielectric applications and devices; Single antennas

References

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      • M.B. Oliver , Y.M.M. Antar , R.K. Mongia , A. Ittipiboon . Circularly p[olarised rectangular dielectric resonator antenna. Electron. Lett. , 6 , 418 - 419
    2. 2)
      • Esselle, K.P.: `Circular polarised dielectric resonator antenna: analysis of near andfar fields using the FD-TD method', IEEE Antennas and Propagation Society Int. Symp. and URSI Meeting, 1995, Newport Beach, CA, USA, p. URSI:28.
    3. 3)
      • K.P. Esselle . The finite-difference time-domain analysis of a rectangular dielectricresonator antenna. J. Electrical and Electronics Engineers, Australia , 1 , 63 - 70
    4. 4)
      • R.K. Mongia , A. Ittipiboon , M. Cuhaci , D. Roscoe . Circularly polarised dielectric resonator antenna. Electron. Lett. , 17 , 1361 - 1362
    5. 5)
      • Ittipiboon, A., Roscoe, D., Mongia, R.K., Cuhaci, M.: `A circularly polarised dielectric guide antenna with a single slot feed', ANTEM'94 Dig., 1994, Ottawa, Canada, p. 427–430.
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