BROADBAND ASYMMETRICAL MULTI-SECTION COUPLED LINE WILKINSON POWER DIVIDER WITH UNEQUAL POWER DIVIDING RATIO

A Wilkinson power divider with improved bandpass filtering and high isolation performance is proposed. These characteristics are achieved by replacing the quarter-wavelength transmission line in the conventional coupled line Wilkinson power divider with quarter-wavelength side-coupled ring (QSCR). Additional features such as DC blocking between arbitrary two ports, single-layer via-less structure for low-cost fabrication and convenient integration (as only one isolation resistor required) are highlighted. A 2-GHz Wilkinson microstrip power divider with a fractional bandwidth of 4% has been fabricated and experimentally characterized. The consistency between simulated and measured results validates the effectiveness of our proposed design.

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A GENERALIZED COUPLED-LINE DUAL-BAND WILKINSON POWER DIVIDER WITH EXTENDED PORTS

Progress In Electromagnetics Research ◽

10.2528/pier12050908 ◽

2012 ◽

Vol 129 ◽

pp. 197-214 ◽

Cited By ~ 12

Author(s):

Jiuchao Li ◽

Yongle Wu ◽

Yuanan Liu ◽

Junyu Shen ◽

Shulan Li ◽

...

Keyword(s):

Power Divider ◽

Dual Band ◽

Coupled Line ◽

Wilkinson Power Divider

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An Enhanced Frequency-Ratio Coupled-Line Dual-Frequency Wilkinson Power Divider

IEEE Transactions on Circuits & Systems II Express Briefs ◽

10.1109/tcsii.2017.2749407 ◽

2018 ◽

Vol 65 (7) ◽

pp. 888-892 ◽

Cited By ~ 17

Author(s):

M. H. Maktoomi ◽

D. Banerjee ◽

M. S. Hashmi

Keyword(s):

Frequency Ratio ◽

Power Divider ◽

Dual Frequency ◽

Coupled Line ◽

Wilkinson Power Divider

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A Novel Analytical Design Technique for a Wideband Wilkinson Power Divider Using Dual-Band Topology

Sensors ◽

10.3390/s21196330 ◽

2021 ◽

Vol 21 (19) ◽

pp. 6330

Author(s):

Asif I. Omi ◽

Rakibul Islam ◽

Mohammad A. Maktoomi ◽

Christine Zakzewski ◽

Praveen Sekhar

Keyword(s):

Transmission Lines ◽

Return Loss ◽

Power Divider ◽

Dual Band ◽

Design Technique ◽

Fractional Bandwidth ◽

Coupled Line ◽

Analytical Design ◽

Resonance Frequencies ◽

Wilkinson Power Divider

In this paper, a novel analytical design technique is presented to implement a coupled-line wideband Wilkinson power divider (WPD). The configuration of the WPD is comprised of three distinct coupled-line and three isolation resistors. A comprehensive theoretical analysis is conducted to arrive at a set of completely new and rigorous design equations utilizing the dual-band behavior of commensurate transmission lines. Further, the corresponding S-parameters equations are also derived, which determine the wideband capability of the proposed WPD. To validate the proposed design concept, a prototype working at the resonance frequencies of 0.9 GHz and 1.8 GHz is designed and fabricated using 60 mils thick Rogers’ RO4003C substrate. The measured result of the fabricated prototype exhibits an excellent input return loss > 16.4 dB, output return loss > 15 dB, insertion loss < 3.30 dB and a remarkable isolation > 22 dB within the band and with a 15 dB and 10 dB references provide a fractional bandwidth of 110% and 141%, respectively.

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