A new modified CPW-fed wideband circularly polarized half-split cylindrical dielectric resonator antenna with different permittivity of two layers in radial direction.
In: International Journal of RF & Microwave Computer-Aided Engineering, Jg. 27 (2017-03-01), Heft 3, S. n/a- (9S.)
Online
academicJournal
Zugriff:
In this article, a wideband circularly polarized half-split cylindrical dielectric resonator antenna (HS-CDRA) having two layers with different permittivity in radial direction is investigated. Designed antenna is excited by a new modified CPW fed which consists of signal line, helps to realization of circular polarization, half-split cylindrical dielectric resonator (HS-CDR), to confirm that circular polarization in proposed antenna. HS-CDR is made of two different materials which can supports to enhance the input impedance bandwidth and 3-dB axial ratio bandwidth. From the distributions of E-fields in HS-CDRA, it is observed that TM11 δ mode has been excited. To confirmed the circular polarization in proposed antenna, E-field distribution on different phases (φ = 0º, 90º, 180º, and 270º) have been plotted. This antenna provides measured −10 dB input impedance bandwidth of 25.94% (centered on 4.70 GHz) and 3-dB axial ratio bandwidth in broadside direction of 17.34% (centered on 4.90 GHz). The average gain and radiation efficiency in working band are 1.56 dBi and 93.43% in broadside direction, respectively. CP radiation pattern shows that the proposed antenna has left hand circular polarization and this developed antenna could be useful for wireless applications like WLAN/Wi-MAX bands. [ABSTRACT FROM AUTHOR]
Titel: |
A new modified CPW-fed wideband circularly polarized half-split cylindrical dielectric resonator antenna with different permittivity of two layers in radial direction.
|
---|---|
Autor/in / Beteiligte Person: | Kumar, Rajkishor ; Chaudhary, Raghvendra Kumar |
Link: | |
Zeitschrift: | International Journal of RF & Microwave Computer-Aided Engineering, Jg. 27 (2017-03-01), Heft 3, S. n/a- (9S.) |
Veröffentlichung: | 2017 |
Medientyp: | academicJournal |
ISSN: | 1096-4290 (print) |
DOI: | 10.1002/mmce.21068 |
Schlagwort: |
|
Sonstiges: |
|