Compact Wideband Circularly Polarized Dielectric Resonator Antenna with Dielectric Vias
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Pages (from-to) | 1100-1104 |
Journal / Publication | IEEE Antennas and Wireless Propagation Letters |
Volume | 21 |
Issue number | 6 |
Online published | 10 Mar 2022 |
Publication status | Published - Jun 2022 |
Link(s)
Abstract
Using dielectric vias, we propose a compact and wideband circularly polarized (CP) dielectric resonator antenna (DRA).
The dielectric vias are realized by filling barium strontium titanate
nanoparticles with a dielectric constant of 20 into a perforated
printed circuit board (PCB) substrate. Owing to the high effective
dielectric constant of the dielectric via-loaded PCB substrate, the
electrical size of the DRA is reduced. The arrangement of dielectric
and air vias inside the DRA structure allows for redistributing
the resonant frequencies of different radiating modes. This design
incorporates a third higher-order mode into the passband, resulting
in wide impedance and axial ratio (AR) bandwidths. A cross slot is
used to excite the CP fields. The standard PCB process is utilized to
manufacture the antenna structure. The fabricated prototype has
measured impedance and AR bandwidths of 46.9% and 26.7%,
respectively. The measured overlapping bandwidth is 25.4%. Our
prototype has a compact footprint of 0.61 × 0.61 λ20 where λ0 is
the wavelength in free space at the center frequency. The proposed
dielectric vias technique has potential abilities in size reduction and
bandwidth enhancement.
Research Area(s)
- Antenna measurements, Broadband antennas, Circularly polarized (CP) antenna, compact, Dielectric constant, dielectric resonator antenna (DRA), dielectric vias, Dielectrics, Electric fields, Substrates, Wideband, wideband
Citation Format(s)
Compact Wideband Circularly Polarized Dielectric Resonator Antenna with Dielectric Vias. / Tong, Changwu; Ingolf Kremer, Hauke; Yang, Nan et al.
In: IEEE Antennas and Wireless Propagation Letters, Vol. 21, No. 6, 06.2022, p. 1100-1104.
In: IEEE Antennas and Wireless Propagation Letters, Vol. 21, No. 6, 06.2022, p. 1100-1104.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review