A Wilkinson Power Divider with Harmonics Suppression and Size Reduction Using Meandered Compact Microstrip Resonating Cells

Frequenz ◽  
2017 ◽  
Vol 71 (11-12) ◽  
Author(s):  
Saeed Roshani
Keyword(s):  
Size Reduction ◽  
Power Divider ◽  
Design Structure ◽  
Quarter Wavelength ◽  
Wilkinson Power Divider ◽  
High Level

AbstractIn this paper, a novel compact Wilkinson power divider with harmonics suppression using meandered compact microstrip resonating cells (MCMRC) at 2 GHz is proposed. In the design structure an open stub is used to suppress 2nd harmonic and two proposed MCMRC units are inserted into quarter wavelength lines of the conventional power divider to suppress 3rd–7th harmonics. The proposed power divider reduces the size over 65 % compare to the conventional one and impressively suppresses the harmonics (2nd–7th) with high level of attenuation. The proposed resonator and power divider are fabricated and measured. The measured and simulated results are in good agreements. The overall dimensions of the resonators and proposed power divider are only about 1.56 mm×9.2 mm (0.013 λg×0.08 λg) and 9.1 mm×13.1 mm (0.08 λg×0.11 λg) respectively.‎

scholarly journals Size reduction and performance improvement of a microstrip Wilkinson power divider using a hybrid design technique

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mohammad Behdad Jamshidi ◽  
Saeed Roshani ◽  
Jakub Talla ◽  
Sobhan Roshani ◽  
Zdenek Peroutka
Keyword(s):  
Performance Improvement ◽  
Size Reduction ◽  
Power Divider ◽  
Experimental Result ◽  
Hybrid Technique ◽  
Harmonic Suppression ◽  
Efficient Design ◽  
Quarter Wavelength ◽  
Lc Circuit ◽  
Wilkinson Power Divider

AbstractIn the design of a microstrip power divider, there are some important factors, including harmonic suppression, insertion loss, and size reduction, which affect the quality of the final product. Thus improving each of these factors contributes to a more efficient design. In this respect, a hybrid technique to reduce the size and improve the performance of a Wilkinson power divider (WPD) is introduced in this paper. The proposed method includes a typical series LC circuit, a miniaturizing inductor, and two transmission lines, which make an LC branch. Accordingly, two quarter-wavelength branches of the conventional WPD are replaced by two proposed LC branches. Not only does this modification lead to a 100% size reduction, an infinite number of harmonics suppression, and high-frequency selectivity theoretically, but it also results in a noticeable performance improvement practically compared to using quarter-wavelength branches in the conventional microstrip power dividers. The main important contributions of this technique are extreme size reduction and harmonic suppression for the implementation of a filtering power divider (FPD). Furthermore, by tuning the LC circuit, the arbitrary numbers of unwanted harmonics are blocked while the operating frequency, the stopband bandwidth, and the operating bandwidth are chosen optionally. The experimental result verifies the theoretical and simulated results of the proposed technique and demonstrates its potential for improving the performance and reducing the size of other similar microstrip components.

COMPACT WILKINSON PASS-BAND FILTERING POWER DIVIDER BASED ON QUARTER-WAVELENGTH SIDE-COUPLED RING

2014 ◽  
Vol 23 (10) ◽  
pp. 1450135
Author(s):  
YONGLE WU ◽  
QIANG LIU ◽  
JUNYU SHEN ◽  
YUANAN LIU
Keyword(s):  
Low Cost ◽  
Single Layer ◽  
Power Divider ◽  
Pass Band ◽  
Fractional Bandwidth ◽  
Coupled Line ◽  
Quarter Wavelength ◽  
Wilkinson Power Divider ◽  
Isolation Performance ◽  
Wavelength Side

A Wilkinson power divider with improved bandpass filtering and high isolation performance is proposed. These characteristics are achieved by replacing the quarter-wavelength transmission line in the conventional coupled line Wilkinson power divider with quarter-wavelength side-coupled ring (QSCR). Additional features such as DC blocking between arbitrary two ports, single-layer via-less structure for low-cost fabrication and convenient integration (as only one isolation resistor required) are highlighted. A 2-GHz Wilkinson microstrip power divider with a fractional bandwidth of 4% has been fabricated and experimentally characterized. The consistency between simulated and measured results validates the effectiveness of our proposed design.

Design of an Ultra-Wideband Wilkinson Power Divider in Modern Electronic Engineering

2015 ◽  
Vol 713-715 ◽  
pp. 1048-1051
Author(s):  
Xin Cao ◽  
Zong Xi Tang
Keyword(s):  
Communication Systems ◽  
Ultra Wideband ◽  
Power Divider ◽  
Frequency Range ◽  
Resonance Property ◽  
Electronic Engineering ◽  
Quarter Wavelength ◽  
Working Frequency ◽  
Wilkinson Power Divider ◽  
Good Agreement

In this paper, an ultra-wideband Wilkinson power divider based on the quarter wavelength transformation is proposed. The proposed power divider utilizes the resonance property of the four stage quarter wavelength microstrip stubs to increase the isolation between the to output ports. As the measured results show that, the power divider has the insertion loss less than 1.3dB with the minimum isolation 15.4dB in the working frequency range from 1GHz to 5GHz. The simulated results and measured results are in good agreement and the proposed power divider can be applied in the communication systems in modern electronic engineering.

Pi-shaped quarter wavelength structure for multiband applications

2013 ◽  
Vol 5 (6) ◽  
pp. 735-748
Author(s):  
Zhebin Wang ◽  
Chan-Wang Park
Keyword(s):  
Power Divider ◽  
Quarter Wavelength ◽  
Wilkinson Power Divider ◽  
Lc Resonators ◽  
First Time ◽  
Good Agreement

In this paper, for the first time, we present a novel Pi-shaped structure using resonators for multiband applications. The multiband Pi-shaped structure with LC resonators is analyzed. In order to demonstrate the proposed multiband Pi-shaped structure, one tri-band Wilkinson power divider and one tri-band rat-race coupler are designed, fabricated, and tested. The compactness of the two demonstrated components is well kept by putting all stubs with resonators inside the components themselves. Measured results are in good agreement with the simulated results.

scholarly journals A low profile compact three-way Wilkinson power divider with size reduction

2020 ◽  
Vol 71 (6) ◽  
pp. 419-422
Author(s):  
Ömer Kasar
Keyword(s):  
Circuit Design ◽  
Insertion Loss ◽  
Return Loss ◽  
Size Reduction ◽  
Power Divider ◽  
Center Frequency ◽  
Low Profile ◽  
Measurement Results ◽  
Wilkinson Power Divider ◽  
Curved Structure

AbstractIn this study, a three-way Wilkinson power divider (WPD) was proposed the circuit whose center frequency was selected as 1.9 GHz operates between 0.95-2.95 GHz frequencies and has a bandwidth of approximately 105%. The simulation and measurement results of the designed circuit were well aligned with each other below 10 dB return loss and 13 dB isolation. In addition, 0.4, 0.3 and 1.0 dB insertion loss were obtained in the output ways, respectively. The circuit is made more compact thanks to the curved structure of the output ways. It has been found that the proposed three-way power divider takes about 35% less space than the conventional circuit design.

Millimeter-Wave Reduced-Size Wilkinson Power Divider

2014 ◽  
Vol 998-999 ◽  
pp. 626-630
Author(s):  
Yu Feng Qiu
Keyword(s):  
Reflection Coefficient ◽  
Transmission Loss ◽  
Power Divider ◽  
Two Stage ◽  
Arbitrary Power ◽  
One Stage ◽  
Quarter Wavelength ◽  
Compact Size ◽  
Wilkinson Power Divider ◽  
The One

The letter reports the analysis of the reduced-size planar microstrip Wilkinson power divider which uses miniaturized microstrip line instead of conventional quarter wavelength transmission line. The full design formulae of the miniaturized Wilkinson power divider with arbitrary power ratio is first proposed.3dB one-stage and two-stage miniaturized Wilkinson power divider are designed according to the formulae. The ADS EM simulation results of the one-stage miniaturized Wilkinson power divider when the smaller electrical angle is 45 degrees show its reflection coefficient<-20dB,isolation>20dB and the transmission loss<0.4dB in the bandwidth of 28.9-34.9GHz,for the two-stage reduced-size Wilkinson power divider its reflection coefficient <-20dB,isolation>20dB and the transmission loss<0.4dB in the bandwidth of 26-37.5GHz.This kind of miniaturized Wilkinson power divider has a very compact size as well as good match and isolation.

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