A Wideband Circularly Polarized Rectangular Dielectric Resonator Antenna Excited by an Archimedean Spiral Slot

A Wideband Circularly Polarized Rectangular Dielectric Resonator Antenna Excited by an Archimedean Spiral Slot

A wideband circularly polarized (CP) rectangular dielectric resonator antenna (DRA) is presented. An Archimedean spiral slot is used to excite the rectangular DRA for wideband CP radiation. The operating principle of the proposed antenna is based on using a broadband feeding structure to excite the...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2015-01, Vol.14, p.446-449
Hauptverfasser: Zou, Meng, Pan, Jin, Nie, Zaiping
Format: Artikel
Sprache:eng
Schlagworte:
Antenna measurements
Archimedean spiral slot
Broadband antennas
circular polarization (CP)
dielectric resonator antenna (DRA)
Dielectric resonator antennas
Dielectrics
Spirals
Wideband
wideband antenna
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Zusammenfassung:A wideband circularly polarized (CP) rectangular dielectric resonator antenna (DRA) is presented. An Archimedean spiral slot is used to excite the rectangular DRA for wideband CP radiation. The operating principle of the proposed antenna is based on using a broadband feeding structure to excite the DRA. A prototype of the proposed antenna is designed, fabricated, and measured. Good agreement between the simulated and measured results is attained, and a wide 3-dB axial-ratio (AR) bandwidth of 25.5% is achieved.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2014.2364296