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A Self-Packaged Circularly Polarized Dielectric Resonator Antenna With Wide Bandwidth and High Gain
Ist Teil von
IEEE antennas and wireless propagation letters, 2018-12, Vol.17 (12), p.2188-2192
Ort / Verlag
New York: IEEE
Erscheinungsjahr
2018
Quelle
IEEE Electronic Library (IEL)
Beschreibungen/Notizen
A novel self-packaged circularly polarized (CP) dielectric resonator antenna with wide bandwidth and high gain is proposed. To obtain a low-profile antenna structure, one strip dielectric resonator (DR) is integrated entirely inside the hollow region of the other two-layer DR. Two coupled CP modes from the composite DR structure are simultaneously excited, constituting a wide operating bandwidth. The proposed antenna also has a high-radiation gain by taking advantages of the substrate integrated waveguide (SIW) based air cavity and the high-gain nature of the adopted two-layer DR. Measured results of the antenna prototype indicate that the design can achieve an overlap bandwidth of 28.6%, with a peak gain of 11.3 dBi.