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Wilkinson Power Divider (wilkinson + power_divider)

Distribution by Scientific Domains

Engineering	100%

Selected Abstracts

Design and optimization of multi-band Wilkinson power divider

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, Issue 1 2008
Nihad Dib
Abstract In this paper, a general and easy procedure for designing the symmetrical Wilkinson power divider that achieves equal-power split at N arbitrary frequencies is introduced. Each quarter-wave branch in the conventional Wilkinson divider is replaced by N sections of transmission lines, and the isolation between the output ports is achieved by using N resistors. The design parameters are the characteristic impedances and lengths of the N transmission line sections, and the N isolation resistors. The even,odd modes of analysis are used to derive the design equations. Closed-form expressions, which are suitable for CAD purposes, are derived for the dual-band divider. For N , 3, closed-form expressions are not available, and therefore, the powerful particle swarm optimization method is used to obtain the design parameters. Examples of the dual-, triple-, and quad-band dividers are presented to validate the proposed design procedure, and the results are compared, wherever possible, with published results using other methods. © 2007 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2008. [source]

A 60-GHz CMOS receiver front-end with integrated 180° out-of-phase Wilkinson power divider

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 12 2010
Jen-How Lee
Abstract A 60-GHz receiver front-end with an integrated 180° out-of-phase Wilkinson power divider using standard 0.13 ,m CMOS technology is reported. The receiver front-end comprises a wideband low-noise amplifier (LNA) with 12.4-dB gain, a current-reused bleeding mixer, a baseband amplifier, and a 180° out-of-phase Wilkinson power divider. The receiver front-end consumed 50.2 mW and achieved input return loss at RF port better than ,10 dB for frequencies from 52.3 to 62.3 GHz. At IF of 20 MHz, the receiver front-end achieved maximum conversion gain of 18.7 dB at RF of 56 GHz. The corresponding 3-dB bandwidth (,3 dB) of RF is 9.8 GHz (50.8,60.6 GHz). The measured minimum noise figure (NF) was 9 dB at 58 GHz, an excellent result for a 60-GHz-band CMOS receiver front-end. In addition, the measured input 1-dB compression point (P1 dB) and input third-order inter-modulation point (IIP3) are ,20.8 dBm and ,12 dBm, respectively, at 60 GHz. These results demonstrate the adopted receiver front-end architecture is very promising for high-performance 60-GHz-band RFIC applications. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:2688,2694, 2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25559 [source]

Compact microstrip power divider with both sides capacitor loading

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 7 2010
Jun He
Abstract A compact microstrip Wilkinson power divider with both sides capacitor loading is presented in this letter. The new divider, not only effectively reduces the occupied area to 33.6% of the conventional one at 1.0 GHz, but also has good harmonic suppression performance over a wide band. Furthermore, the new structure has only two variable parameters and can be easily designed. The design is validated both by simulation and measurement. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1663,1664, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25286 [source]

Analytical design of a half-mode substrate integrated waveguide Wilkinson power divider

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 5 2010
A. Suntives
Abstract This article presents a new approach in designing half-mode substrate integrated waveguide Wilkinson power dividers based on analytical relations. Even- and odd-mode analysis is used to determine the required value of the branch resistance and optimize the power divider performance, namely the output ports' isolation. In this manner, the design process for this microwave component is simplified and expedited, while an excellent correlation with full-wave simulations is maintained. Measurements of the fabricated prototype corroborate the calculated results and demonstrate a wide output-port isolation bandwidth of 71%. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1066,1069, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25145 [source]

Effects of interconnecting transmission lines on four-way Wilkinson power divider

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 12 2009
Jiafeng Zhou
Abstract A four-way power divider can be designed by interconnecting three two-way Wilkinson power dividers. This article investigates how the two-way elements can be interconnected to achieve optimal response. It will be shown that by using properly chosen lengths of interconnecting transmission lines, the bandwidth of the power divider can be significantly broadened. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2850,2852, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24786 [source]

A compact harmonic-suppressed Wilkinson power divider using C-SCMRC resonators

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 12 2006
Jian-Zhong Gu
Abstract This letter describes a compact Wilkinson power divider using compensated spiral compact microstrip resonant cell (C-SCMRC) resonators for harmonic suppression and size reduction. The size length of quarter wavelength transmission line is only 0.14 ,g because of the slow-wave characteristic. Furthermore, the proposed power divider rejected the 2nd and 3rd harmonic signals using the stopband of C-SCMRC resonators. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2382,2384, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21961 [source]