DUAL BAND RECTANGULAR DIELECTRIC RESONATOR ANTENNA FOR WLAN APPLICATION

2016 ◽  
Vol 78 (6-2) ◽  
Author(s):  
Raghuraman Selvaraju ◽  
M. R. Kamarudin ◽  
Mohsen Khalily ◽  
Jamal Nasir ◽  
M. H. Jamaluddin.
Keyword(s):  
Dielectric Resonator ◽  
Dual Band ◽  
Impedance Bandwidth ◽  
Strip Line ◽  
Dielectric Resonator Antenna ◽  
Ring Shape ◽  
Measured Impedance ◽  
Band Ring ◽  
5 Ghz ◽  
Rectangular Dielectric Resonator Antenna

A compact dual band ring shape rectangular dielectric resonator antenna (RRDRA) to operate at 2.4 GHz and 5 GHZ WLAN application is proposed. In this design the dielectric resonator is fed by modified 50Ω trapezoidal micro strip line situated on top of the FR4 substrate. The simulated and measured impedance bandwidth achieved at 2.4 GHZ is 12.42% (2.3149-2.6132) and 12.9% (2.21-2.52) respectively; whilst for 5 GHZ at 13% (5.1795-5.8914) and 13.2% (5.08-5.81) for S11<-10 dB. And the gain of the proposed antenna is 4.9dBi and 5.9 dBi at 2.4 GHz 5GHZ respectively. Results are simulated using Ansoft High frequency structural simulator (HFSS) for the study of impedance bandwidth, return loss, radiation pattern and antenna gain. Furthermore the antenna has been fabricated and tested. The measured characteristics of the proposed antenna are in good agreement with the simulated results. 

scholarly journals A Single-Point-Fed Wideband Circularly Polarized Rectangular Dielectric Resonator Antenna

2016 ◽  
Vol 2016 ◽  
pp. 1-9
Author(s):  
Deqiang Yang ◽  
Meng Zou ◽  
Jin Pan
Keyword(s):  
Dielectric Resonator ◽  
Single Point ◽  
Axial Ratio ◽  
Design Concept ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Circularly Polarized ◽  
Measured Impedance ◽  
Rectangular Dielectric Resonator Antenna ◽  
Good Agreement

A single-point-fed circularly polarized (CP) rectangular dielectric resonator antenna (DRA) with wide CP bandwidth is presented. By usingTE111andTE113modes of the rectangular DRA, a wideband CP performance is achieved. The coupling slot of the antenna contains a resistor loaded monofilar-spiral-slot and four linear slots. Design concept of the proposed antenna is demonstrated by simulations, and parameter studies are carried out. Prototype of the proposed antenna was fabricated and measured. Good agreement between the simulation and measurement is obtained. The measured impedance bandwidth (|S11|<-10 dB) and 3 dB axial-ratio (AR) bandwidth are 51.4% (1.91–3.23 GHz) and 33.0% (2.15–3.00 GHz), respectively.

A Coplanar Waveguide Rectangular Dielectric Resonator Antenna (RDRA) for 4G Applications

2015 ◽  
Vol 73 (1) ◽  
Author(s):  
Muhammad Ramlee Kamarudin ◽  
Siti Fairuz Roslan ◽  
Mohsen Khalily ◽  
Mohd Haizal Jamaluddin
Keyword(s):  
Dielectric Resonator ◽  
Coplanar Waveguide ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Measurement Results ◽  
Metallic Strip ◽  
Measured Impedance ◽  
Rectangular Dielectric Resonator Antenna ◽  
Good Agreement

This paper presents the design of coplanar waveguide (CPW) rectangular dielectric resonator antenna (RDRA) with and without metallic strip, operating at 2.6 GHz for long term evolution (LTE) applications. The CPW RDRA without metallic strip produces impedance bandwidth of 51 %. Then, a metallic strip was added on top of the dielectric resonator (DR) in order to enhance the impedance bandwidth; thus give more flexibility for the system to cover more applications. A good agreement between simulation and measurement results, in terms of reflection coefficient magnitude and radiation pattern is presented. The simulated and measured impedance BWs for S11 < -6dB are 67 % (1.74-3.47 GHz) and 66 % (1.83-3.54 GHZ) respectively, with the gain of 3.12 dBi is obtained at 2.6 GHz.  The mode excited for this antenna is TEy1δ1 mode.

scholarly journals Dual Band Notch, Compact, Low profile, Hybrid Ultra Wideband RDRA

2020 ◽  
Vol 10 (1) ◽  
pp. 166-169
Keyword(s):  
Radiation Pattern ◽  
Dielectric Resonator ◽  
Surface Current ◽  
Wide Band ◽  
Ultra Wideband ◽  
Dual Band ◽  
Ultra Wide Band ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Ground Structure

This paper presents a novel, compact Ultra Wide Band , Asymmetric Ring Rectangular Dielectric Resonator Antenna (ARRDRA), which is a unique combination of Thin Dielectric Resonator (DR), Fork shape patch and defective ground structure. The base of the proposed antenna is its Hybrid structure, which generates fundamental TM, TE and higher order modes that yields an impedance bandwidth of 119%. Proposed antenna provides a frequency range from 4.2 to 16.6 GHz with a stable radiation pattern and low cross polarization levels. Peak gain of 5.5 dB and average efficiency of 90% is obtained by the design. Antenna is elongated on a FR4 substrate of dimension 20 x 24x 2.168 mm3 and is particularly suitable for C band INSAT, Radio Altimeter, WLAN, Wi-Fi for high frequencies. Ease in fabrication due to simplicity, compactness, stable radiation pattern throughout the entire bandwidth are the key features of the presented design. Inclusion of Defective ground structure and asymmetric ring not only increases the bandwidth but also stabilize the gain and efficiency due to less surface current. Presented design launch an Ultra Wide Band antenna with sufficient band rejection at 4.48-5.34 and 5.64-8.33 GHz with stable radiation pattern and high gain.

Dual-Port MIMO Rectangular Dielectric Resonator Antenna for 4G-LTE Application

2015 ◽  
Vol 781 ◽  
pp. 24-27 ◽  
Author(s):  
Raghuraman Selvaraju ◽  
Muhammad Ramlee Kamarudin ◽  
Mohsen Khalily ◽  
Mohd Haizal Jamaluddin ◽  
Jamal Nasir
Keyword(s):  
Dielectric Resonator ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Feed Line ◽  
Term Evolution ◽  
4G Lte ◽  
Rectangular Dielectric Resonator Antenna ◽  
Microstrip Feed Line ◽  
Microstrip Feed

A Multi Input Multi Output (MIMO) Rectangular Dielectric Resonator Antenna (RDRA) for 1.8 GHz Long Term Evolution (LTE) applications is investigated and presented. The antenna consisting of two rectangular dielectric resonator elements, both resonators are fed by microstrip feed line is etched on FR4 substrate. The simulated impedance bandwidth for port1 and port2 is 26.38% (1.6176-2.1093 GHz) and 26.80% (1.6146-2.1143GHz) respectively for |S11| ≤ -6dB, which can operate on LTE band 1-4,9,10,35-37 and 39. The gain of the MIMO RDRA is 3.2 dBi and 3.1 dBi at 1.8 GHz for port 1and port 2, respectively. The S-parameters, isolation, gain, and MIMO performance such as correlation coefficient and diversity gain of the presented RDR Antenna have been studied.

scholarly journals Throughput Measurement of a Dual-Band MIMO Rectangular Dielectric Resonator Antenna for LTE Applications

Sensors ◽  
2017 ◽  
Vol 17 (12) ◽  
pp. 148 ◽  
Author(s):  
Jamal Nasir ◽  
Mohd. Jamaluddin ◽  
Aftab Ahmad Khan ◽  
Muhammad Kamarudin ◽  
Chee Yen Leow ◽  
...  
Keyword(s):  
Dielectric Resonator ◽  
Dual Band ◽  
Dielectric Resonator Antenna ◽  
Rectangular Dielectric Resonator Antenna

A dual-band rectenna using broadband DRA loaded with slot

2017 ◽  
Vol 10 (1) ◽  
pp. 59-66 ◽  
Author(s):  
Sachin Agrawal ◽  
Manoj Singh Parihar ◽  
Pravin N. Kondekar
Keyword(s):  
Energy Harvesting ◽  
Dielectric Resonator ◽  
Electromagnetic Coupling ◽  
Dual Band ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Load Impedance ◽  
Rf Energy Harvesting ◽  
Rectangular Slot ◽  
Rf Energy

This paper presents a broadband hybrid slot-dielectric resonator antenna for radiofrequency (RF) energy-harvesting application. The antenna geometry consists of a simple pentagon-shaped dielectric resonator antenna (PDRA) excited by a microstrip feed underlying rectangular slot with narrow notch. It is investigated that the bandwidth of the proposed PDRA is improved significantly owing to electromagnetic coupling between feeding slot and the dielectric resonator. The measured results demonstrate that the proposed PDRA achieves an impedance bandwidth of 110.8%, covering the frequency range from 0.86 to 3 GHz in addition of stable radiation pattern with peak gain of 6.8 dBi and more than 90% radiation efficiency throughout the band, showing its suitability for RF energy harvesting application. For this to be feasible, the developed antenna is matched with the rectifier at two public telecommunication bands of GSM-900 and GSM-1800 using a compact dual-band hybrid matching network. The measured result demonstrates that the proposed dual-band rectenna system provides the peak efficiency of 63 and 59% for a load impedance of 4.7 kΩ at 0.9 and 1.8 GHz, respectively.

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