CLOSED-FORM DESIGN METHOD OF AN N-WAY DUAL-BAND WILKINSON HYBRID POWER DIVIDER

In this paper, a four-way dual-band Gysel power divider (GPD)/combiner based on a back-to-back microstrip structure method is proposed and investigated. A two-layer substrate is adopted to implement this PD. In order to divide the input signal into four equivalent signals, the input and four output ports of the proposed PD are placed on the top and the four external isolation resistors are placed on the bottom layer of the substrate. Furthermore, the dual-band response is achieved by adding a short-circuit stub and an open-circuit stub to the structure. Then, the theoretical closed-form design formulas are derived based on the considered conditions and circuit transmission line theory. Finally, for verification purpose, a prototype PD is designed, fabricated, and measured which works at dual frequencies of 1 and 2 GHz simultaneously. The good agreement between simulation and measurement results, which show good impedance matching, isolation, as well as power transmission, verifies the correctness of the design theory.

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A closed form design method for recursive 3-D cone filters

Proceedings of ICASSP '94. IEEE International Conference on Acoustics, Speech and Signal Processing ◽

10.1109/icassp.1994.389920 ◽

2002 ◽

Cited By ~ 17

Author(s):

M. Bolle

Keyword(s):

Closed Form ◽

Design Method ◽

Form Design

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A New Design Method for Unequal Dual-Band Modified Wilkinson Power Divider

Electromagnetics ◽

10.1080/02726340903577434 ◽

2010 ◽

Vol 30 (3) ◽

pp. 269-284 ◽

Cited By ~ 2

Author(s):

Yongle Wu ◽

Yuanan Liu ◽

Shulan Li ◽

Cuiping Yu

Keyword(s):

Design Method ◽

Power Divider ◽

Dual Band ◽

Wilkinson Power Divider

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Wideband filtering power divider with deep and wide stopband

International Journal of Microwave and Wireless Technologies ◽

10.1017/s1759078718000946 ◽

2018 ◽

Vol 10 (9) ◽

pp. 1011-1018

Author(s):

Pengcheng Zhang ◽

Xianqi Lin ◽

Cong Tang ◽

Yuan Jiang ◽

Yong Fan

Keyword(s):

Transmission Line ◽

Closed Form ◽

Design Principle ◽

Power Divider ◽

Power Dividers ◽

Transmission Zeros ◽

Quarter Wavelength ◽

Rejection Level ◽

Form Design ◽

Good Agreement

AbstractIn this study, wideband bandpass power divider with good out-of-band performance is proposed. Two bandpass filters (BPFs) are utilized to substitute the quarter-wavelength transmission line in conventional Wilkinson power divider. A resistor is specially arranged between two BPFs for a good isolation. Four transmission zeros (TZs) are found to be distributed in the lower and upper stopband of the power divider. Moreover, the locations of two TZs can be shifted by tuning the impedance ratio of the center-loaded open stub, which is propitious to improve the frequency selectivity. Even- and odd-mode methods are applied to analyze the proposed power divider and closed-form design formulas are obtained. Finally, two prototype power dividers with measured rejection level in the upper stopband larger than 29.1 and 32 dB till to 2.7f0 and 2.69f0, respectively, are designed and fabricated to testify the proposed design concept. Good agreement between the simulated and measured results is observed, validating the validity of the proposed design principle.

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