Abstract—A new wideband and high-gain dielectric resonator antenna (DRA) is proposed. Three cylindrical dielectric resonators (DRs) with different materials and different sizes and a metallic cylinder are designed to obtain a wideband bandwidth and a high gain. The stacked structure provides a wideband bandwidth, and the cavity formed by the metallic cylinder provides a high gain. The measured ...

A novel fractal called Fractal Clover Leaf (FCL) is introduced and shown to have well miniaturization capabilities. The proposed patches are fed by L-shape probe to achieve wide bandwidth operation in PCS band. A numerical parametric study on the proposed antenna is presented. It is found that the antenna can attain more than 72% size reduction as well as 17% impedance bandwidth (VSWR<2), in co...

To reduce the impedance of the cavity higher order modes, (HOM’s), a compact broad-band, low-reflection, waveguide load is required with a VSWR less than 2:1 in the frequency range 714 MHz to 2500 MHz. The load must also work in the high vacuum of the cavity, and be capable of dissipating up to 10 kW of power which is generated by the the interaction of the beam with the cavity HOM’s and which ...

The paper present the design for circularly polarized Square Micro Strip patch antenna (MSPA) with two corners chopped. An extensive analysis of the return loss, radiation pattern, gain, VSWR, bandwidth and efficiency of the proposed antenna is shown in this paper. We are using CST simulation software for designing and analysis. The simple configuration and low profile nature of the proposed an...

Abstract— A novel compact CPW ultra-wideband (UWB) antenna combined with a compact band-selective filter is proposed. The proposed antenna without filter satisfies the return loss requirement of less than −10 dB over the frequency range of 3.0 GHz to 12.1GHz. The optimized antenna has dimensions of 10×16mm2 on a Teflon substrate (εr = 3.48) with good radiation characteristics and is easy to fab...

A wide band, integrated linear printed antenna array with low sidelobe cosecant square-shaped beam pattern is presented. Array synthesis mainly about the wide shaped coverage, low ripple and sidelobe level (SLL) has been done using the modified least square method by matrix inversion. A printed dipole integrated with wideband balun has been chosen as the array element for wide bandwidth and goo...

This paper presents a study on bow tie antenna with U-shape slot, designated for the Wireless applications. It is designed to work on a thick substrate (h = 1.6mm) with a high dielectric constant ( = 4.4) operating at three frequencies (2.4, 4 and 5GHz). Two U-shaped slots are introduced in the both sides of bow tie antenna in order to achieve a very low return loss at these frequencies. The an...

This paper propose a new generation of antenna that applies Metamaterial properties at ground Plane. Paper also analyzed the performance of Microstrip Patch Antenna with and without using the Metamaterial structure. The works mainly include Metamaterial as Defected ground plane. All antenna parameters such as Return Loss, Gain, VSWR and Band width were measured. The main focus of this paper was...

Antipodal Fermi antenna (APFA) that uses an antipodal feeding section is proposed and its fundamental characteristics are presented. It is shown that the cross polarization level is decreased by 5–10 dB by the presence of the corrugation. It is also found that high gain, low VSWR and low side lobes and low back lobes are obtained. The mechanism of operation principles is discussed by using FDTD...