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Archimedean microstrip spiral antenna loaded by chip resistors inside substrate

Antennas and Propagation Society International Symposium, 2004. IEEE(2004)

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Abstract
An ultra-wide-band (UWB) microstrip spiral antenna is proposed. The antenna is resistively loaded inside the substrate to maintain a good circular polarization on the bandwidth. The main performances are a very thin thickness (λ/100 at the lowest operating frequency), good impedance matching and right hand circularly polarized patterns over a 9:1 bandwidth.
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Key words
uhf antennas,antenna radiation patterns,broadband antennas,electromagnetic wave polarisation,impedance matching,microstrip antennas,spiral antennas,2 to 18 ghz,archimedean spiral antenna,uwb antenna,chip resistors,radiation patterns,resistive loading,right hand circular polarization,spiral microstrip antenna,ultra-wide-band antenna,frequency,ultra wide band,bandwidth,polarization,circular polarization,resistors,chip,spirals
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