Dual-Frequency Circularly-Polarized Patch Antenna With Compact Size and Small Frequency Ratio

By X. Bao, Max J. Ammann. IEEE Transactions on Antennas and Propagation, 2007

137 citations recorded by the source corpus.

A novel probe-fed single-layer annular-ring patch antenna for dual-frequency circular polarization is evaluated numerically and experimentally verified. The proposed antenna consists of a small circular patch surrounded by two concentric annular-rings, which is loaded by an unequal lateral cross-slot ground plane. The circularly-polarized frequency ratio of the two resonant modes is tunable to a small value, suitable for wireless communications systems. The patch size of the proposed antenna is reduced by about 53% compared to the conventional circular patch at a given frequency. The radiation characteristics of the novel antenna are also presented.

Subfields: Aerospace Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/5d43bfaca45bc76312f619e6cbcf91a4230fedc3

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In Aerospace Engineering

1. Da-Gang Fang
2. Wen Wu
3. Jindong Zhang

In Electrical and Electronic Engineering

1. Da-Gang Fang
2. Wen Wu
3. Jindong Zhang

Citations in the corpus

• Broadband Circularly Polarized Crossed Dipole With Parasitic Loop Resonators and Its Arrays (2011, background): “In general, the design concepts researched for a CP antenna are compactness [6], operating frequency selectivity [7], multiband [8], and broadband CP operation.”
• Dual-Band and Dual-Circularly Polarized Shared-Aperture Array Antennas With Single-Layer Substrate (2016, background): “2501847 reported [3]–[5], but most of them are working in either right-”