Study on the radiation characteristics of a miniaturized circularly polarized circular sector patch antenna

A single-feed dual-band circularly polarized stacked microstrip patch antenna with a small-frequency ratio is presented. Two pair of orthogonal slits is cut on the lower circular patch for achieving circular polarization and truncated corner square patch is used as the upper parasitic element. The frequency ratio of the dual-band is 1.03. The 3 dB axial ratio bandwidth is 1.3% for the upper band and 1.1% for the lower band. Proposed structure is fabricated on the FR-4 epoxy substrate and fed by SMA connector. The measured results are in good agreement with the theoretical and simulated results. The antenna shows stable radiation characteristics in both bands of operation.

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Miniaturization of Circularly Polarized Patch Antenna Using Circular Sector Element

IEEE International Workshop on Antenna Technology Small Antennas and Novel Metamaterials, 2006. ◽

10.1109/iwat.2006.1609012 ◽

2006 ◽

Author(s):

T. Tanaka ◽

M. Takahashi ◽

K. Ito

Keyword(s):

Patch Antenna ◽

Circular Sector ◽

Circularly Polarized

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Circularly Polarized Microstrip Patch Antenna for WiMAX Applications

International Journal of Innovative Research in Computer and Communication Engineering ◽

10.15680/ijircce.2015.0308019 ◽

2015 ◽

Vol 3 (8) ◽

pp. 7265-7272

Author(s):

B.Madhuri, D r. A. Jhansi Rani,

Keyword(s):

Patch Antenna ◽

Microstrip Patch Antenna ◽

Circularly Polarized ◽

Microstrip Patch

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A Broadband Circularly Polarized Cross-slotted Patch Antenna with Horizontal Meandered Strip (HMS)

Frequenz ◽

10.1515/freq-2019-0113 ◽

2020 ◽

Vol 74 (5-6) ◽

pp. 191-199

Author(s):

M. K. Verma ◽

Binod K. Kanaujia ◽

J. P. Saini ◽

Padam S. Saini

Keyword(s):

Circular Polarization ◽

Patch Antenna ◽

Impedance Matching ◽

Axial Ratio ◽

Impedance Bandwidth ◽

Radiation Patterns ◽

Circularly Polarized ◽

Feeding Technique

AbstractA broadband circularly polarized slotted square patch antenna with horizontal meandered strip (HMS) is presented and studied. The HMS feeding technique provides the good impedance matching and broadside symmetrical radiation patterns. A set of cross asymmetrical slots are etched on the radiating patch to realize the circular polarization. An electrically small stub is added on the edge of the antenna for further improvement in performance. Measured 10-dB impedance bandwidth (IBW) and 3-dB axial ratio bandwidth (ARBW) of the proposed antenna are 32.31 % (3.14–4.35 GHz) and 20.91 % (3.34–4.12 GHz), respectively. The gain of the antenna is varied from 3.5 to 4.86dBi within 3-dB ARBW. Measured results matched well with the simulated results.

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