Varying Slot Lengths Strip Loading Squared Dielectric Resonator Reflectarray

Vertical-Strip-Fed Broadband Circularly Polarized Dielectric Resonator Antenna

A vertical-strip-fed dielectric resonator antenna exhibiting broadband circular polarization characteristics is presented. A broad 3 dB axial ratio bandwidth (ARBW) is achieved by combining multiple orthogonal modes due to the use of a special-shaped dielectric resonator. The proposed antenna is fabricated to evaluate its actual performance capabilities. The antenna exhibits a measured 3 dB ARB...

Wideband Rectangular Dielectric Resonator Antenna (dra) with Slot-fed Design

A novel wideband rectangular dielectric resonator antenna (DRA) is proposed in this paper. A hybrid structure with an isolated dielectric resonator (DR) and an equivalent air-dielectric DR is introduced by lifting the resonator from the ground plane. The hybrid structure is excited by a slot-fed mechanism to obtain a smooth transition between each resonant mode. The resonant modes of the isolat...

Double split ring slot FSS reflectarray for difference pattern generation

Transmission Line Model for Slot-coupled Microstrip Reflectarray Antennas

A transmission line model is adopted for the analysis of slot-coupled microstrip reflectarrays. The current on the equivalent impedance for the single radiating element is used to obtain the reflectarray phase design curve. Computational costs are drastically reduced with respect to theoretical full-wave analysis. Numerical and experimental validations are presented on the phase curve useful fo...

Multi-strip LTCC resonator BPF

Multi-strip resonator BPF is fabricated in the LTCC configuration. The center frequency is 3.5GHz, fractional bandwidth is 0.1 and 3-stage Chebyshev type is designed. The relative permittivity of the ceramic is 18.3, resulting in the size as small as 2.3 × 1.6 × 0.73mm. The in-band loss is 3.5 dB, which could be reduced in the stable mass production state. The spurious suppression of more than ...