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

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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Tunable balanced to balanced filtering power divider with high common-mode suppression

Frequenz ◽

10.1515/freq-2019-0178 ◽

2020 ◽

Vol 74 (7-8) ◽

pp. 263-270

Author(s):

Cao Zeng ◽

Xue Han Hu ◽

Feng Wei ◽

Xiao Wei Shi

Keyword(s):

Return Loss ◽

High Selectivity ◽

Power Divider ◽

Center Frequency ◽

Differential Mode ◽

Common Mode ◽

Mode Suppression ◽

The Common ◽

Equal Power ◽

Good Agreement

AbstractIn this paper, a tunable balanced-to-balanced in-phase filtering power divider (FPD) is designed, which can realize a two-way equal power division with high selectivity and isolation. A differential-mode (DM) passband with a steep filtering performance is realized by applying microstrip stub-loaded resonators (SLRs). Meanwhile, six varactors are loaded to the SLRs to achieve the center frequency (CF) and bandwidth adjustment, respectively. U-type microstrip lines integrated with stepped impedance slotline resonators are utilized as the differential feedlines, which suppress the common-mode (CM) intrinsically, making the DM responses independent of the CM ones. A tuning center frequency from 3.2 to 3.75 GHz and a fractional bandwidth (12.1–17.6%) with more than 10 dB return loss and less than 2.3 dB insertion loss can be achieved by changing the voltage across the varactors. A good agreement between the simulated and measured results is observed. To the best of authors' knowledge, the proposed balanced-to-balanced tunable FPD is first ever reported.

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Design of a Miniaturized Microstrip Wilkinson Power Divider

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.303-306.1826 ◽

2013 ◽

Vol 303-306 ◽

pp. 1826-1829

Author(s):

Xiao Tao Cai ◽

De Jiang Yu ◽

Hui Feng Wang ◽

Ru Gang Hu

Keyword(s):

Frequency Band ◽

Return Loss ◽

Impedance Matching ◽

Power Divider ◽

Wilkinson Power Divider ◽

Operation Frequency ◽

Better Than ◽

Good Agreement

A miniaturized microstrip Wilkinson power divider is proposed in this paper. The designed power divider is miniaturized by means of using the snake-shaped structure to meet the engineering requirements. During the operation frequency band, the designed Wilkinson power divider has good performance of impedance matching at three ports and the measured return loss of each port are all less than -17dB. The isolation between two output ports is better than -20dB. The insert loss is less than 0.7dB. The designed power divider is fabricated to validate the design. The proposed power divider is measured and the simulated and measured results have a good agreement.

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Modified Y-junction SIW power divider/combiner circuit

International Journal of Microwave and Wireless Technologies ◽

10.1017/s1759078718000831 ◽

2018 ◽

Vol 10 (8) ◽

pp. 877-882 ◽

Cited By ~ 1

Author(s):

Kaijun Song ◽

Zihang Luo ◽

Song Guo ◽

Maoyu Fan ◽

Yedi Zhou

Keyword(s):

Design Methodology ◽

Return Loss ◽

Power Divider ◽

Equivalent Circuits ◽

Transition Structure ◽

Direct Transition ◽

Power Split ◽

Simulation Results ◽

Equal Power ◽

Good Agreement

AbstractA modified compact Y-junction substrate-integrated waveguide (SIW) four-way power divider (PD)/combiner is proposed in this paper. The proposed approach is based on the traditional Y-junction waveguide. By using direct transition structure from SIW to half-mode SIW, four-way PD that provides equal power split to all four output ports is achieved. The even- and odd-mode equivalent circuits are given to analyze and design the PD. The measured results validate the proposed design methodology and show good agreement with the simulation results. The measured 17 dB return loss bandwidth and 1.2 dB insertion loss bandwidth of this four-way PD are both about 2.5 GHz.

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Circle Microstrip Antenna Simulation for Frequency 3.5 GHz

Electrical Engineering Acta ◽

10.22236/ate.v1i1.6895 ◽

2021 ◽

Vol 1 (1) ◽

pp. 1-4

Author(s):

Wildan Wildan ◽

Dwi Astuti Cahyasiwi ◽

Syah Alam ◽

Mohd Azman Zakariya ◽

Harry Ramza

Keyword(s):

Dielectric Constant ◽

Patch Antenna ◽

Microstrip Antenna ◽

Microstrip Line ◽

Return Loss ◽

Tangent Loss ◽

Substrate Thickness ◽

Total Radiation ◽

Circular Patch Antenna ◽

Working Frequency

This research proposed microstrip circular patch antenna simulation at a working frequency 3500 MHz. The antenna has been designed using a Duroid RT5880 substrate with dielectric constant (εr) = 2.2, substrate thickness (h) = 1.575 mm, and tangent loss = 0.0009 with microstrip line feeding. The simulation result, return loss value obtained -26.385, VSWR value 1.09, gain value 7.64 dBi, total radiation efficiency value -0.6489 dB, and bandwidth value 72 MHz (3468.8 MHz – 3541.9 MHz).

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Theory and Design of a Flexible Two-Stage Wideband Wilkinson Power Divider

Electronics ◽

10.3390/electronics10172168 ◽

2021 ◽

Vol 10 (17) ◽

pp. 2168

Author(s):

Antra Saxena ◽

Mohammad Hashmi ◽

Deepayan Banerjee ◽

Muhammad Akmal Chaudhary

Keyword(s):

Transfer Function ◽

Transmission Lines ◽

Short Circuit ◽

Wide Band ◽

Power Divider ◽

Design Parameters ◽

Two Stage ◽

Quarter Wave ◽

Band Pass ◽

Wilkinson Power Divider

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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A Differential UWB Quasi-Yagi Antenna with A Reconfigurable Notched Band

Frequenz ◽

10.1515/freq-2018-0018 ◽

2018 ◽

Vol 72 (9-10) ◽

pp. 401-406 ◽

Cited By ~ 1

Author(s):

Feng Wei ◽

Xin Tong Zou ◽

Xin Yi Wang ◽

Bin Li ◽

Xi Bei Zhao

Keyword(s):

Microstrip Line ◽

Design Procedure ◽

Wide Band ◽

Impedance Bandwidth ◽

Differential Mode ◽

Transition Structure ◽

Notched Band ◽

Quarter Wavelength ◽

Yagi Antenna ◽

Good Agreement

Abstract A compact differential ultra-wide band (UWB) planar quasi-Yagi antenna is presented in this paper. The proposed antenna consists of a balanced stepped-impedance microstrip-slotline transition structure, a driver dipole and one parasitic strip. A wide differential-mode (DM) impedance bandwidth covering from 3.8 to 9.5 GHz is realized. Meanwhile, a high and wideband common-mode (CM) suppression can be achieved by employing the balanced stepped-impedance microstrip-slotline transition structure. It is noted that the DM passband is independent from the CM response, which can significantly simplify the design procedure. In addition, a reconfigurable sharp DM notched band from 5.6 to 6.7 GHz is generated by adding one pair of quarter-wavelength varactor-loaded short-circuited stubs adjacent to the microstrip line symmetrically. In order to illustrate the effectiveness of the design, two prototypes of the antennas are designed, fabricated, and measured. A good agreement between the simulated and measured results is observed.

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Study and analysis of discontinuity by using taper baluns

International Journal of Engineering & Technology ◽

10.14419/ijet.v4i2.4396 ◽

2015 ◽

Vol 4 (2) ◽

pp. 283

Author(s):

Hussein Aldahhan ◽

Bashar Qas Elias

Keyword(s):

Reflection Coefficient ◽

Transmission Line ◽

Insertion Loss ◽

Power Flow ◽

Microstrip Line ◽

Return Loss ◽

Wide Band ◽

Coplanar Stripline ◽

Insertion Losses

A coplanar stripline (CPS) to microstrip line transition (MSL) are designed with high characteristics, such as wide band, low return loss and high insertion loss. Two types of tapers are proposed, exponential and triangular to decreases of discontinuity in the power flow in transmission line. The suggested design achieved reflection coefficient under -10 dB over wide band from 1 GHz to 3 GHz and insertion losses of less than 1 dB.

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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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