Design of Wide-Band 6-Port Network for Noise Parameter Measurement
                        Using 3-Section Wilkinson Power Divider and Slot-Coupled Directional
                        Coupler

This article presents the design scheme of a wideband Wilkinson Power Divider (WPD) with two-stage architecture utilizing quarter-wave transmission lines and short-circuit stubs. The bandwidth of the proposed WPD is flexible and can be controlled using the design parameters. The proposed design achieves excellent isolation between output ports in addition good in-band performance. The analysis of the proposed circuit results in a simplified transfer function which is then equated with a standard band-pass transfer function to determine the parameters of transmission lines, stub’s impedances, and the value of the isolation resistors. Furthermore, it is also demonstrated that a simple alteration in the proposed circuit enables the design of a wideband DC isolated WPD that maintains a good in-band and isolation performance. A number of case studies have been included to highlight the flexibility of the proposed design. Two distinct prototypes are developed on different boards to demonstrate the wideband performance of the proposed design. An excellent agreement between the experimental and measured results for both the designs over a wide band including very good isolation between ports validate the proposed design.

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Highly Unequal Three-Port Power Divider: Theory and Implementation

International Journal of Antennas and Propagation ◽

10.1155/2018/9141964 ◽

2018 ◽

Vol 2018 ◽

pp. 1-8 ◽

Cited By ~ 2

Author(s):

Duolong Wu ◽

Adriana Serban ◽

Magnus Karlsson ◽

Shaofang Gong

Keyword(s):

Transmission Lines ◽

Directional Coupler ◽

Feedback Mechanism ◽

Power Divider ◽

Electromagnetic Simulation ◽

Planar Form ◽

Measurement Results ◽

Minimum Number ◽

Wilkinson Power Divider ◽

Good Agreement

A three-port power divider consisting of a directional coupler, a Wilkinson power divider, and two transmission lines connected to them is proposed. Theoretical analysis reveals that highly unequal power division can be achieved by a feedback mechanism of two transmission lines along with the coupling coefficient of the directional coupler and the power division ratio of the Wilkinson power divider. The three-port power divider inherits the performance characteristics of high isolation, low reflection coefficients at all ports, and the minimum number of components. The proposed power divider is designed at 5.8 GHz and fabricated and evaluated through measurements. It demonstrates that electromagnetic simulation results are in good agreement with theoretical prediction and measurement results. The three-port power divider is compact in the planar form, so it can be easily integrated into radio frequency front ends.

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Nonuniform compact Ultra-Wide Band Wilkinson power divider with different unequal split ratios

Journal of Electromagnetic Waves and Applications ◽

10.1080/09205071.2019.1691944 ◽

2019 ◽

Vol 34 (2) ◽

pp. 154-167

Author(s):

Sahar Saleh ◽

Widad Ismail ◽

Intan Sorfina Zainal Abidin ◽

Mohd Haizal Jamaluddin ◽

Samir Ahmed Al-Gailani ◽

...

Keyword(s):

Wide Band ◽

Power Divider ◽

Ultra Wide Band ◽

Wilkinson Power Divider

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A Compact Bandpass Wilkinson Power Divider With Ultra-Wide Band Harmonic Suppression

IEEE Microwave and Wireless Components Letters ◽

10.1109/lmwc.2017.2745484 ◽

2017 ◽

Vol 27 (10) ◽

pp. 888-890 ◽

Cited By ~ 23

Author(s):

Yang Wang ◽

Xiao-Yu Zhang ◽

Fu-Xing Liu ◽

Jong-Chul Lee

Keyword(s):

Wide Band ◽

Power Divider ◽

Ultra Wide Band ◽

Harmonic Suppression ◽

Wilkinson Power Divider

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Wide band multi stage eight way Wilkinson power divider for defense applications

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i3.13154 ◽

2018 ◽

Vol 7 (3) ◽

pp. 1304

Author(s):

M Siva Charan ◽

A Rajasekhar ◽

K V. Venkateswara Rao ◽

Ch Lakshmi Prasanna ◽

Praveen Vummadisetty. Naidu ◽

...

Keyword(s):

Dielectric Constant ◽

Microstrip Line ◽

Return Loss ◽

Wide Band ◽

Simulation Software ◽

Power Divider ◽

Multi Stage ◽

Wilkinson Power Divider ◽

Equal Power ◽

Good Agreement

In this paper, a compact 8 way microstrip line Wilkinson Power Divider (WPD) is designed and proposed. The equal power divider con-sists of multiple multi-section WPD’s with isolation resistors. By utilizing the multi-sections concept, a remarkably increase in the band-width is observed. In the design process, RT 5880 substrate is used with the thickness of 0.8 mm and dielectric constant of 2.2 and loss tangent of 0.0004. The simulated results such as return loss, insertion loss and isolation are plotted by using ADS simulation software and obtained results show good agreement.

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