Compact circularly polarized truncated square ring slot antenna with suppressed higher resonances.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 28192504.
- Also identified by DOI 10.1371/journal.pone.0172162 and PMC identifier 5305115.
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Abstract
This paper presents a compact circularly polarized (CP) antenna with an integrated higher order harmonic rejection filter. The proposed design operates within the ISM band of 2.32 GHz- 2.63 GHz and is suitable for example for wireless power transfer applications. Asymmetrical truncated edges on a square ring create a defected ground structure to excite the CP property, simultaneously realizing compactness. It offers a 50.5% reduced patch area compared to a conventional design. Novel stubs and slot shapes are integrated in the transmission line to reduce higher (up to the third) order harmonics. The proposed prototype yields a -10 dB reflection coefficient (S11) impedance bandwidth of 12.53%, a 3 dB axial ratio bandwidth of 3.27%, and a gain of 5.64 dBi. Measurements also show good agreement with simulations.
Medical subject headings
- Electric Impedance
- Equipment Design
- Wireless Technology