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A novel broadband omni-directional circularly polarized antenna for mobile communications

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Yksityiskohdat

AlkuperäiskieliEnglanti
Otsikko2011 IEEE International Symposium on Antennas and Propagation - Proceedings
Sivut1777-1779
Sivumäärä3
DOI - pysyväislinkit
TilaJulkaistu - 2011
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
Tapahtuma2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011 - Spokane, WA, Yhdysvallat
Kesto: 3 heinäkuuta 20118 heinäkuuta 2011

Conference

Conference2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011
MaaYhdysvallat
KaupunkiSpokane, WA
Ajanjakso3/07/118/07/11

Tiivistelmä

This paper presents a new broadband omni-directional circularly polarized (CP) antenna for mobile communications operating nearby 2 GHz. The new omni-directional CP antenna consists of four broadband CP rectangular loops which are bent to form a hollow cylinder. A conducting cylinder is introduced inside the hollow cylinder to improve the CP performance. A broadband balun is developed to feed the CP antenna. This antenna has a compact cylindrical configuration with a diameter of 0.4. The simulation shows that this antenna has a bandwidth of 30.8% (1.7 GHz-2.32 GHz) for return loss (RL) ≥10 dB and 36.1% (1.75 GHz-2.52 GHz) for average axial ratio (AR) ≤3 dB. Good agreement between simulated and measured results is achieved.

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