Dual-band Rectangular Dielectric Resonator Research Articles

Dual‐band dielectric resonator antenna with multi‐frequency circular polarisation

A dual-band rectangular dielectric resonator (DR) antenna is implemented with a multi-frequency circularly polarised (CP) response. The wide dual-band response is achieved by inserting the slots in the DR. The insertion of slots in the DR in a specific manner generates the orthogonal degenerate modes. Consequently, the multi-frequency CP response is obtained. The antenna provides the total overlapping CP bandwidth of 4.96% (13.36–14.04 GHz) in the lower band and 3.28% (14.95–15.45 GHz), 9.624% (17.11–18.84 GHz) and 0.517% (19.28–19.38 GHz) in the upper band. The antenna provides the 10 dB impedance bandwidth of 6.44% (13.36–14.25GHz) and 28.89% (14.95–20GHz) in the lower and upper bands, respectively. The peak gain of antenna remains >3 dBic in the passbands.

Aperture coupled BaTiO3 based dielectric resonator antenna with dual‐band

ABSTRACTA low profile and dual band rectangular dielectric resonator antenna (DRA) based on high permittivity BaTiO3 is proposed. The antenna main characteristics are investigated for wireless communication system applications at the frequency band from 6.0 to 8.0 GHz. The antenna design is performed using Ansoft HFSS through the finite element method. Antenna prototypes are built and measured on a vector network analyzer (R&S ZVB14 model) for comparison purpose. Agreement between simulated and measured results is observed. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2759–2763, 2013

A Compact Dual Band Dielectric Resonator Antenna For Wireless Applications

This paper presents the design of a dual band rectangular Dielectric Resonator Antenna (DRA) coupled to narrow slot aperture that is fed by microstrip line. The fundamental TE111 mode and higher-order TE113 mode are excited with their resonant frequencies respectively. These frequencies can be controlled by changing the DRA dimensions. A dielectric resonator with high permittivity is used to miniaturize the global structure. The proposed antenna is designed to have dual band operation suitable for both DCS (1710 - 1880 MHz) and WLAN (2400 - 2484 MHz) applications. The return loss, radiation pattern and gain of the proposed antenna are evaluated. Reasonable agreement between simulation and experimental results is obtained.