Compact circularly polarised microstrip antenna with slotted ground plane

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Compact circularly polarised microstrip antenna with slotted ground plane

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A novel compact circularly polarised microstrip antenna with a slotted ground plane is proposed. By embedding a group of four bent slots in the ground plane and truncating a pair of patch corners in the radiating square patch, the proposed antenna can perform circular polarisation (CP) operation with a reduced antenna size at a fixed operating frequency. In addition, enhanced CP bandwidth and antenna gain for the proposed design are observed. Details of the antenna design and experimental results are presented and discussed.

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

Other keywords: antenna gain; axial ratio; return loss; radiation patterns; radiating square patch; slotted ground plane; circular polarisation; microstrip antenna; bent slots; compact antenna; patch comers; enhanced bandwidth

Subjects: Single antennas

References

    1. 1)
      • S.A. Bokhari , J.F. Zurcher , J.R. Mosig , F.E. Gardiol . A small microstrip patch antenna with a convenient tuning option. IEEE Trans. Antennas Propag. , 1521 - 1528
    2. 2)
      • K.L. Wong , J.Y. Wu . Single-feed small circularly polarised square microstrip antenna. Electron. Lett. , 1833 - 1834
    3. 3)
    4. 4)
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