A Wideband Circularly Polarized Rectangular Dielectric Resonator Antenna Excited by a Lumped Resistively Loaded Monofilar-Spiral-Slot

A Wideband Circularly Polarized Rectangular Dielectric Resonator Antenna Excited by a Lumped Resistively Loaded Monofilar-Spiral-Slot

A wideband circularly polarized (CP) rectangular dielectric resonator antenna (DRA) based on the concept of traveling-wave excitation is presented. A lumped resistively loaded monofilar-spiral-slot is used to excite the rectangular DRA. The proposed DRA is theoretically and experimentally analyzed,...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2013, Vol.12, p.1646-1649
Hauptverfasser: Zou, Meng, Pan, Jin, Nie, Zaiping, Li, Pengcheng
Format: Artikel
Sprache:eng
Schlagworte:
Antennas
Bandwidth
Broadband antennas
Circular polarization (CP)
Circularity
dielectric resonator antenna (DRA)
Dielectric resonator antennas
Dielectrics
Excitation
Guidelines
Resonators
Spirals
traveling-wave excitation
Wideband
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Beschreibung
Zusammenfassung:A wideband circularly polarized (CP) rectangular dielectric resonator antenna (DRA) based on the concept of traveling-wave excitation is presented. A lumped resistively loaded monofilar-spiral-slot is used to excite the rectangular DRA. The proposed DRA is theoretically and experimentally analyzed, including design concept, design guideline, parameter study, and experimental verification. It is found that by using such an excitation, a wide 3-dB axial-ratio (AR) bandwidth of 18.7% can be achieved.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2013.2294678