Design and implementation of a bandpass Wilkinson power divider with wide bandwidth and harmonic suppression

Soleymani, Hojatollah; Roshani, Sobhan

doi:10.3906/elk-1806-111

Cited by 9 publications

(4 citation statements)

References 19 publications

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“…Recently, several techniques have been introduced to reduce the size and improve the functionality of power dividers [3]. These features, such as multi-band operation [4], wideband operation [5], multi-ports [6], asymmetric structure [7], filter usage [8,9], and harmonics suppression [10], have been investigated in recent works. Moreover, recently, optical fiber substrates [11,12] have been employed to achieve higher frequencies for power dividers [13,14].…”

Section: Introductionmentioning

confidence: 99%

Design of a Filtering Power Divider with Simple Symmetric Structure Using Stubs

et al. 2022

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A power divider (PD) with a wide stopband and simple symmetric structure using open- and short-ended stubs is analyzed and implemented in this paper. In the proposed power divider, for the first time, the output resistor is divided into two sections and open- and short-ended stubs are used between the resistors. The incorporated open- and short-ended stubs have resulted in a controllable bandwidth for the proposed PD, which resulted in 40% of the fractional bandwidth considering 3 dB attenuation of insertion loss. The proposed PD operates at 2 GHz, which shows more than 20 dB attenuation for the return and isolation losses. In addition, the obtained insertion loss at the operating frequency is approximately 0.3 dB, which shows a minor loss, and also, high isolation is achieved in the device. Moreover, 20 dB and 30 dB attenuation levels have been achieved for second and third harmonics. The results show high performance for the proposed power divider.

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Section: Introductionmentioning

confidence: 99%

Design of a Filtering Power Divider with Simple Symmetric Structure Using Stubs

et al. 2022

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“…Recently, several approaches have been proposed and performed to solve these problems. For example, coupled lines 12 , open-ended stubs 13 , T-shaped and Π-shaped resonators 14 , and embedded filters 15 .…”

Section: Introductionmentioning

confidence: 99%

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

Jamshidi

Roshani

Talla

et al. 2021

Sci Rep

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In 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.

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“…However, designing microwave circuits based on neural networks is not a straightforward approach, which is more suitable for device modelling. In [29], open stubs with bent structures were used to provide a wide stopband, where several stubs were needed. The relative stopband of the filter is 1.72.…”

Section: Introductionmentioning

confidence: 99%

Half-Elliptical Resonator Lowpass Filter with a Wide Stopband for Low Band 5G Communication Systems

et al. 2021

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In this paper, a lowpass filter is designed using half elliptical resonators with a wide stopband. New formulas are presented to achieve a circuit model for the half elliptical resonators used in this work. Additionally, the transfer function and transmission zero equations are used to adjust the frequency of the transmission zeros of the filter. The cut-off frequency of the lowpass filter is 1.26 GHz with a sufficiently large stopband, extending from 1.48 GHz to 20 GHz. The proposed filter’s figure of merit is 62,520, demonstrating its outperformance compared to the state of the art. The filter is implemented on a RT-5880 substrate with a constant dielectric of 2.2, thickness of 31 mil and loss tangent of 0.0009. The LPF was fabricated and tested, showing good agreement between the simulated and measured results.

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Design and implementation of a bandpass Wilkinson power divider with wide bandwidth and harmonic suppression

Cited by 9 publications

References 19 publications

Design of a Filtering Power Divider with Simple Symmetric Structure Using Stubs

Design of a Filtering Power Divider with Simple Symmetric Structure Using Stubs

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

Half-Elliptical Resonator Lowpass Filter with a Wide Stopband for Low Band 5G Communication Systems

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