Size Reduction and Bandwidth Enhancement of a Uwb Hybrid Dielectric Resonator Antenna for Short-Range Wireless Communications

Abstract

In this paper, a novel hybrid dielectric resonator (DR) antenna for Ultrawideband (UWB) short-range wireless communications is proposed. The proposed antenna consists of a microstrip fed monopole loaded with a half cylindrical dielectric resonator antenna of Rogers RO3010 mounted on RT5880 substrate with a finite ground plane. The microstrip line fed monopole antenna is on the other side of the substrate. Compared to the conventional circular cylindrical DR mounted on a finite ground plane (reference antenna), the proposed antenna has a reduction in the antenna size by about 30% with a bandwidth increase by about 22% than the reference antenna. The proposed antenna has a good impedance bandwidth. In addition, the proposed antenna has a quite higher and more stable gain than that of reference antenna. Moreover, the antenna has a good omni-directional radiation patterns in the H-plane. The proposed antenna is considered a good candidate for UWB short-range wireless communication systems.

Investigation of the Characteristics of Barium Strontium Titanate (Bst) Dielectric Resonator Ceramic Loaded on Array Antennas

“…However, it is more useful to classify them as polycrystalline, non-metallic materials [9][10][11][12][13]. The inherent physical properties of ceramics have made them desirable for use in a wide range of industries, and they were first applied in the electronics sector.…”

“…In the search for new types of dielectric materials that achieve high permittivity and low loss, extensive efforts have been expended to develop, characterize, and implement barium strontium titanate (BST), a new type of dielectric ceramic material with various beneficial characteristics, into a working electrical microwave model with the help of microwave simulation software [9][10][11][12][13][14]. Barium strontium titanate ((Ba x Sr 1−x )TiO 3 /(Ba 1−x Sr x )TiO 3 , 0 < x < 1) or BST has become the leading materials system for these devices due to its high dielectric response.…”

A Functional Antenna Tuner for Slot Patch Antenna

“…Since microstrip antenna with wide bandwidth is very important for Wireless-LNA, Bluetooth and Video-interface [4], techniques of modifying bandwidth have been developed a lot. Structurally, it includes integrating several microstrip resonance structures into one antenna [5,6], adding more structural layers to antenna [7], changing dielectric constant of substrate [8,9], modifying probe feed structure [10][11][12][13][14] and printing functional slot to the radiator as well as the ground [15][16][17][18], etc. Lately, by using of stepped [19,20] and slotted ground [21][22][23] for size reduction, parasitic elements for shorting the patch [24][25][26] to modify the bandwidth of microstrip antenna has been reported.…”

Numerical Investigations of Ultra Wideband Stacked Rectangular Dra Excited by Rectangular Patch

“…The proposed antennas are mainly based on planar monopoles with different shapes such as rectangular, circular, semi-elliptical, and trapezoidal forms [10][11][12][13] and on slot antennas, using a tuning stub with rectangular shape [14], circular shape [15], and fork-like shape [16]. Due to their advantages compared with metallic antennas, some research papers have recently proposed the dielectric resonator antennas to be one of the attractive candidate antennas for UWB applications, such as a half cylindrical dielectric resonator antenna [17], an A-shaped resonator [18], an inserted DRA excited by CPW [19], and a conical-shape DR with monopole antenna [20].…”