Dual‐band unequal Wilkinson power divider with reduced length

In this work, the design of miniaturized dual‐ and triple‐ frequency Wilkinson power dividers using nonuniform coplanar waveguides is presented. The miniaturized configurations are achieved by replacing the conventional uniform arms with their equivalent multi‐frequency nonuniform transmission lines. The nonuniform width variation is governed by a truncated Fourier series expansion with coefficients optimized to obtain the desired multi‐frequency operation. The optimization process is carried out through the analysis of the even/odd mode circuits. The proposed dividers are simulated, fabricated, and measured to validate the design methodology. Simulated and measured results agree very well, and show input/output ports return loss and isolation better than 14.4 dB and transmission parameters in the range of −3 ± 2 dB at the design frequencies. Size reduction of 16.7% and 17.6% are achieved for the fabricated dual‐ and triple‐frequency dividers, respectively.

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“…Miniaturized power dividers with wide‐ and multi‐band operations are of interest to many applications . In Ref.…”

Section: Introductionmentioning

confidence: 99%

“…Miniaturized power dividers with wide-and multi-band operations are of interest to many applications. [13][14][15][16][17] In Ref. 13, a multi-band WPD was proposed and designed using particle swarm optimization.…”

Section: Introductionmentioning

confidence: 99%

Miniaturized multi‐frequency Wilkinson power dividers based on nonuniform coplanar waveguide

Jaradat

Dib

Shamaileh

2018

Int J RF Microw Comput Aided Eng

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“…Power dividers are a very important category of passive microwave circuits which are often used to combine or divide RF signals in many applications such as antennas feeds, power amplifiers and phase shifters . On the basic of conventional single band Wilkinson power dividers , efforts have been made by researchers for power dividers with dual‐band property by cascaded transmission lines . Among these works, square‐ring structures are employed to separate the two branches of transmission lines and avoid spurious coupling while coupled‐line structures are featured with lumped resistors inserted at the separated space to realize isolation.…”

Section: Introductionmentioning

confidence: 99%

Miniaturization of a broadband power divider for X-band application based on GaAs technology

Han

Liao

2017

Microw. Opt. Technol. Lett.

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In this letter, a miniaturized broadband power divider with novel configuration is proposed. Coplanar transmission lines of CPW and cascaded two sections of coupled ACPSs are utilized to achieve broadband performance. MIM capacitors are loaded at each ends of the ACPSs to realize size‐reduction along with ground equalization. Design equations are given in detail. The occupied area is about 3.5 × 0.6 mm2 and a significant size reduction of 61% is achieved. The fabrication process of this power divider with coplanar transmission lines is compatible with GaAs MMIC process. Broadband performance and perfect impedance matching are revealed by the measured results that the return loss S11 and S22 are both lower than −15 dB across the entire X‐band, 8–12 GHz. Good isolation and dividing properties are obtained with S23 better than −10 dB and S21 around −3.5 dB. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1427–1431, 2017

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“…These power dividers normally consist of two branches of cascaded transmission lines which operate at different frequencies, f 1 and f 2 , respectively . Square‐ring structures are usually employed to separate the two branches of transmission lines and avoid spurious coupling, but leads to relatively large occupied size . The application of coupled‐line structure serves as a solution to this problem with lumped resistors inserted at the separated space to realize isolation.…”

Section: Introductionmentioning

confidence: 99%

Analysis and design of a broadband coplanar Wilkinson power divider at X‐band

Han

Liao

2016

Micro & Optical Tech Letters

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The analysis and design methods of a broadband coplanar Wilkinson power divider are proposed in this paper. The novelty is that cascaded two sections of coupled asymmetrical coplanar strips (ACPSs) are utilized to obtain broadband performance over X‐band and two resistors are used for isolation. The design equations are derived using even‐ and odd‐mode analysis. The specific structure parameters for broadband performance over X‐band are obtained through electronic design simulation tool and quasi‐static conformal mapping technique. The power divider is fabricated on GaAs substrate and is compatible with GaAs MMIC process. The measured results of the power divider show close agreement with the simulation. The measured return loss S11 is better than −15 dB across the entire X‐band, 8–12 GHz. Good dividing and high isolation properties are also revealed through measurements. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:307–312, 2017

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Dual‐band unequal Wilkinson power divider with reduced length

Cited by 19 publications

References 17 publications

Miniaturized multi‐frequency Wilkinson power dividers based on nonuniform coplanar waveguide

Miniaturized multi‐frequency Wilkinson power dividers based on nonuniform coplanar waveguide

Miniaturization of a broadband power divider for X-band application based on GaAs technology

Analysis and design of a broadband coplanar Wilkinson power divider at X‐band

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