High-Frequency Electrical Properties of Silver Thick Films Measured by Dielectric Resonator Method

In this article, a Multiple-Input-Multiple-Output (MIMO) H-shape Dielectric Resonator Antenna (DRA) is designed and simulated at 2.6 GHz for 4G applications. The proposed structure consists of H-shape DRA ( =10) which is mounted on FR4 substrate ( =4.6), and feed by two different feeding mechanisms. First, microstrip with slot coupling as Port 1. Second, coaxial probe as Port 2. The electrical properties of the proposed MIMO H-shape DRA in term of return loss, bandwidth and gain are completely obtained by using CST Microwave Studio Suite Software. The simulated results demonstrated a return loss more than 20 dB, an impedance bandwidth of 26 % (2.2 – 2.9 GHz), and gain of 6.11 dBi at Port 1. Then, a return loss more than 20 dB, an impedance bandwidth of 13 % (2.2 – 2.7 GHz), and gain of 6.63 dBi at Port 2. Both ports indicated impedance bandwidth more than 10 %, return loss lower than 20 dB, and gain more than 10 dBi at 2.6 GHz. The simulated electrical properties of the proposed design show a good potential for LTE applications.

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Demonstration of surface resistance mapping of large-area HTS films using the dielectric resonator method

Physica C Superconductivity ◽

10.1016/s0921-4534(02)01347-3 ◽

2003 ◽

Vol 383 (4) ◽

pp. 374-378 ◽

Cited By ~ 5

Author(s):

M Kusunoki ◽

Y Takano ◽

K Nakamura ◽

M Inadomaru ◽

D Kosaka ◽

...

Keyword(s):

Dielectric Resonator ◽

Surface Resistance ◽

Large Area ◽

Resonator Method ◽

Hts Films

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Microwave and Electrical Properties of Zr-Doped SrTiO3 for Dielectric Resonator Antenna Application

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.280.142 ◽

2018 ◽

Vol 280 ◽

pp. 142-148 ◽

Cited By ~ 2

Author(s):

Norhizatol Fashren Muhamad ◽

Rozana Aina Maulat Osman ◽

Mohd Sobri Idris ◽

Faizal Jamlos ◽

Nor Azura Malini Ahmad Hambali

Keyword(s):

Dielectric Constant ◽

Electrical Properties ◽

Dielectric Loss ◽

Dielectric Resonator ◽

Ceramic Powder ◽

Experimental Studies ◽

Orthorhombic Phase ◽

Solid State Reaction Method ◽

Dielectric Resonator Antenna ◽

Conventional Solid State Reaction

Present investigation provides experimental studies on cylindrical dielectric resonator antennas (CDRAs) fabricated from SrTi1-xZrxO3ceramic with different substitution of Zr in place of Ti for (0 ≤ x ≤1). Ceramic powder were prepared using conventional solid state reaction method. X-ray Diffraction exposes physical properties Zr-doped SrTiO3which exhibit phase transition from cubic, tetragonal to orthorhombic phase. The electrical properties such as dielectric constant (εr) and dielectric loss (tan δ) were studied in variation of temperatures and frequencies. At room temperature the dielectric constant decreased from 240 to 21 with increase of Zr content however the amazing result was obtained for multiband antenna by Zr content. The dielectric loss obtain shows very low loss value roughly below 0.07 for all samples. The variations of return loss, resonance frequency and bandwidth of CDRAs at their respective resonant frequencies are studied experimentally.

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