Compact planar Wilkinson power divider using -equivalent shunt-stub-based artificial transmission lines

Tseng, Chao‐Hsiung; Wu, Cheng-Zhou

doi:10.1049/el.2010.2194

Cited by 30 publications

(21 citation statements)

References 5 publications

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“…Where Or Where impedance Z = 70.71 Ω [2]. The four unknown parameters (1, 2, Z1, and Z2) in (10) and (11) need to be optimized in order to miniaturize the WPD design. The PSO technique is used here to provide the optimum solution.…”

Section: Transmission-linementioning

confidence: 99%

“…More recently, the design of WPDs have become more compact [11][12][13][14][15][16][17]. For example, in [11] the WPD is proposed using two section asymmetrical T-structures to achieve a significant size reduction. The asymmetrical T-structure is realized by two series highimpedance lines with unequal electrical lengths and a shunt low-impedance line.…”

Section: Introduction 4mentioning

confidence: 99%

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Miniature In-Phase Wilkinson Power Divider with Pair of Parallel Transmission-Lines for Application in Wireless Microwave Systems

Khajeh-Khalili

Honarvar

Virdee

2018

IETE Journal of Research

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A novel miniature Wilkinson power divider (WPD) design is presented. This is achieved by substituting the quarter-wavelength transmission-lines constituting the WPD with an equivalent pair of parallel transmission-lines (PPTLs) that effectively reduce the circuit size of the WPD by 43% compared with a conventional design whose ground-plane is defected. Particle swarm optimization (PSO) technique is used to achieve size reduction. Meandering the transmission-lines further reduce the WPD size by 22%. The proposed WPD has overall dimensions of 9.38 × 11.51 mm 2 or 0.11 λg × 0.14 λg, which is compatible with the requirements imposed by portable personal wireless systems. Coupling between the parallel transmission-lines is shown to extend the operational bandwidth of the power divider to 3.2 GHz (0.8-4 GHz) for a return-loss better than 10 dB. Index Terms-Wilkinson power divider (WPD), pair of parallel transmission-lines (PPTLs) miniaturization, particle swarm optimization (PSO), defected ground structure (DGS).

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Section: Transmission-linementioning

confidence: 99%

Section: Introduction 4mentioning

confidence: 99%

Miniature In-Phase Wilkinson Power Divider with Pair of Parallel Transmission-Lines for Application in Wireless Microwave Systems

Khajeh-Khalili

Honarvar

Virdee

2018

IETE Journal of Research

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“…The reported Wilkinson power divider with conventional quarter-wavelength transmission-line (TLIN) in [1], occupies a large area (especially at low operating frequencies) and it is not capable of suppressing spurious frequencies. In order to overcome these disadvantages several methods are used to reduce overall circuit size and suppress unwanted harmonics in the Wilkinson power dividers [2][3][4][5][6][7]. For instance, for size reduction and harmonic suppression, a kind of Wilkinson power divider based on standard printed-circuit-board (PCB) etching processes is reported in [2].…”

Section: Introductionmentioning

confidence: 99%

“…Since, (DGS) and (EBG) need etching process, so their fabrication process is complex and these methods are not useable on a metal surface. The use of π-equivalent shunt-stubbased artificial transmission lines can effectively decrease the circuit size of conventional power divider [7]. This structure occupies 14.7% of the conventional power divider, but it is not capable for harmonic rejection at its operating frequency of 0.9 GHz.…”

Section: Introductionmentioning

confidence: 99%

A Wilkinson Power Divider with Harmonic Suppression and Size Reduction using High-low Impedance Resonator Cells

Hayati¹,

Abdipour²

2015

RADIOENGINEERING

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“…A design procedure was proposed in [7] but it did not consider the isolation resistance feeding TLines. Another solution based on a Q-type stub in the parallel arms, instead of classical TLines, reduces the PD size as well [9]. However, such PDs need TLines with high characteristic impedance, which constitutes a drawback with CMOS technologies.…”

Section: Introductionmentioning

confidence: 99%

Flexible and miniaturized power divider

Burdin

Podevin

Ferrari

2015

Int. J. Microw. Wireless Technol.

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Flexible and miniaturized power divider franc ‚ois burdin, florence podevin and philippe ferrari A new flexible and miniaturized power divider (PD), based on the Wilkinson PD topology, is carried out in this paper. Flexibility and size reduction are achieved simultaneously thanks to both an open-stub loading the input port and additional transmission lines (TLines) connecting the output ports to the isolation resistance. Design equations and rules are given. As a proof-of-concept, two PDs working at 2.45 GHz were fabricated and measured. Then, on the basis of the previous developments, a 1:4 power-dividing feeding network was realized. It highlights the high performance and flexibility of the proposed PD. Agreement between simulation and measurement results is very good, for PDs as well as for the feeding network, thus validating the proposed approach. This concept is straightforward to be applied at higher frequencies, in particular in the millimeter-wave range on CMOS technologies, where flexibility in the choice of the TLines characteristic impedances and size reduction are mandatory.

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Compact planar Wilkinson power divider using -equivalent shunt-stub-based artificial transmission lines

Cited by 30 publications

References 5 publications

Miniature In-Phase Wilkinson Power Divider with Pair of Parallel Transmission-Lines for Application in Wireless Microwave Systems

Miniature In-Phase Wilkinson Power Divider with Pair of Parallel Transmission-Lines for Application in Wireless Microwave Systems

A Wilkinson Power Divider with Harmonic Suppression and Size Reduction using High-low Impedance Resonator Cells

Flexible and miniaturized power divider

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