Performance Improvement of an Archimedean Spiral Antenna for 2–18 GHz Applications

Roy, Aritra; Vinoy, K. J.; Martin, Noham; Mallegol, Stéphane; Quendo, Cédric

doi:10.1109/lawp.2022.3169274

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…After loading the metal ring, the current distribution of 0.7 GHz is concentrated on the metal ring. Simultaneously, the antenna aperture is reduced by 21.8% compared to the minimum size provided by Equation (1).…”

Section: Simulation Verificationmentioning

confidence: 99%

“…9 However, this fixed physical length leads to not only high antenna profiles but also destructive interferences between the incident and reflected waves in specific frequency regions. 6,7 To address this, absorbers 1,10 have been utilized to improve the low-frequency circular polarization (CP) performance of the antenna at the expense of gain. Gradually, the technique of AMC has been proposed to form the reflection plate.…”

Section: Introductionmentioning

confidence: 99%

“…Compared to linearly polarized antennas, CP antennas offer superior reception sensitivity and polarization matching ratio. Although the technique has been developed for decades, recent research still focus on the performance improvement of CP antennas, 1 such as increasing its bandwidth and decreasing its profile height or aperture size. Many scholars assist in the design of parasitic patches or slit antennas with the help of characteristic mode analysis (CMA) to achieve broadband circular polarization.…”

Section: Introductionmentioning

confidence: 99%

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Miniaturized low‐profile ultra‐wideband circularly polarized archimedes spiral antenna backed by an AMC reflector

Huang,

Wang,

Chen

et al. 2023

Micro & Optical Tech Letters

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A low‐profile ultra‐wideband (UWB) circularly polarized antenna is proposed in the form of a planar Archimedes spiral structure backed by an artificial magnetic conductor (AMC). To expand its bandwidth and minimize its size, the antenna is loaded with resistors and a metal ring near the end of the spiral arms. At the same time, the bidirectional beam is transformed into a unidirectional beam using the phase compensation mechanism by introducing an AMC reflector. The antenna achieves −10 dB impedance bandwidth and 3 dB AR bandwidth in 0.7 ~ 10.2 GHz (174.3%), with a height of only 0.035 wavelengths at 0.7 GHz, which shows advantages over most similar designs. Finally, the antenna is fabricated and measured to prove its effectiveness.

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Section: Simulation Verificationmentioning

confidence: 99%