Design of Compact Dual-Band Power Dividers With Frequency-Dependent Division Ratios Based on Multisection Coupled Line

2013 ◽  
Vol 3 (3) ◽  
pp. 467-475 ◽  
Author(s):  
Yucheng Liu ◽  
Wenhua Chen ◽  
Xiang Li ◽  
Zhenghe Feng
Keyword(s):  
Dual Band ◽  
Coupled Line ◽  
Frequency Dependent ◽  
Power Dividers ◽  
Band Power

Design of Single- and Dual-Band Power Dividers Integrated Filtering Responses Based on SIRs

Frequenz ◽  
2016 ◽  
Vol 70 (5-6) ◽  
Author(s):  
Feng Wei ◽  
Ning-Wei Chen ◽  
Wei-Jin Li ◽  
Lei Chen
Keyword(s):  
Design Theory ◽  
Stop Band ◽  
Dual Band ◽  
Power Dividers ◽  
Transmission Zeros ◽  
Electric Length ◽  
Band Power ◽  
Quarter Wavelength ◽  
Equal Power ◽  
Good Agreement

AbstractIn this paper, two single- and dual-band equal power dividers (PDs) integrated filtering responses are proposed using quarter-wavelength stepped-impedance resonators (SIRs). By appropriately adjusting the impedances and electric length ratios of SIRs, the proposed structures can achieve compact sizes and wide stop-band performances. In addition, source-load coupling is applied to create a pair of transmission zeros at each side of the pass-bands, which can improve effectively the frequency selectivity and the out-of-band rejection. To validate the design theory, two single- and dual-band PDs with good filtering responses are designed, implemented and measured, respectively. The predicted results on S parameters are compared with the measured ones and good agreement is achieved.

Compact design of dual-band power divider with coupled-line shunt elements

2011 ◽  
Vol 47 (4) ◽  
pp. 262 ◽  
Author(s):  
Y.-C. Liu ◽  
W.-H. Chen ◽  
X. Li ◽  
Z.-H. Feng
Keyword(s):  
Power Divider ◽  
Dual Band ◽  
Coupled Line ◽  
Band Power ◽  
Compact Design

A Novel Small-Size Coupled-Line Wilkinson Power Divider for Dual-Band Applications

2013 ◽  
Vol 437 ◽  
pp. 1066-1072 ◽  
Author(s):  
Wei Min Wang ◽  
Yuan An Liu
Keyword(s):  
Design Theory ◽  
Power Divider ◽  
Dual Band ◽  
Coupled Line ◽  
Power Dividers ◽  
Full Wave ◽  
Coupled Lines ◽  
Parameters Analysis ◽  
Wilkinson Power Dividers ◽  
Circuit Configuration

A novel coupled-line circuit configuration is proposed to design small-size dual-band Wilkinson power dividers. This proposed power divider consists of three sections of coupled lines and two isolation resistors. The analytical design theory is given and the electrical parameters analysis is provided. Six numerical examples are presented to demonstrate the flexible dual-band applications. To avoid a negative isolation resistor, a practical power divider operating at 1GHz and 2.2GHz with two positive-value resistors is designed. The calculated and full-wave simulated results verify our proposed idea. Keywords: Coupled-line, dual-band, power divider.

scholarly journals Bandwidth Improvement of Conventional Dual-Band Power Divider Using Physical Port Separation Structure

Electronics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 2192
Author(s):  
Tso-Jung Chang ◽  
Yi-Fan Tsao ◽  
Ting-Jui Huang ◽  
Heng-Tung Hsu
Keyword(s):  
Power Divider ◽  
Dual Band ◽  
Design Parameters ◽  
Impedance Bandwidth ◽  
Physical Separation ◽  
Power Dividers ◽  
Band Power ◽  
Technical Issues ◽  
Bandwidth Broadening ◽  
Extended Power

This paper presents the bandwidth improvement for dual-band power divider using complex isolation network while maintaining physical port separation. The conventional port-extended power dividers suffered from narrow system bandwidth. A rigorous analysis revealed that such problem was mainly due to the limited impedance bandwidth caused by the odd-mode bisected network. Moreover, the isolation bandwidth provided by the parallel L-C topology in the conventional approach was also limited. To overcome such technical issues, a serial L-C topology was proposed. Derivations of the impedance bandwidth through even- and odd-mode network analysis have been performed and optimal system bandwidth could be achieved when the reflection coefficients of the corresponding bisected networks exhibited minimum frequency dependence. Based on the theoretical analysis, simultaneous achievement of bandwidth broadening, size compactness, and physical port extension at both frequencies is possible with optimum combinations of the design parameters. The experimental results evidenced that other than the improvement in system bandwidth, the fabricated prototype featured low extra insertion loss, good isolation across the bands, and compactness in size while maintaining physical separation between the split ports compared with previously published works.

A Novel Coupled-Line Gysel Power Divider for Dual-Band and High-Power applications

2013 ◽  
Vol 834-836 ◽  
pp. 1132-1139
Author(s):  
Wei Min Wang ◽  
Yong Le Wu ◽  
Yuan An Liu
Keyword(s):  
High Power ◽  
Design Theory ◽  
Power Divider ◽  
Dual Band ◽  
Electrical Parameters ◽  
Coupled Line ◽  
Power Dividers ◽  
Full Wave ◽  
Parameters Analysis ◽  
Mode Technique

A novel coupled-line structure is proposed to design dual-band and high-power Gysel power dividers. Based on traditional even-and odd-mode technique, the analytical design theory is given and the electrical parameters analysis is provided. Four numerical examples are presented to demonstrate the flexible dual-band applications. A practical power divider operating at 1GHz and 2 GHz is designed. The calculated and full-wave simulated results verify our proposed idea.

scholarly journals A Novel High-Power Dual-Band Coupled-Line Gysel Power Divider with Impedance-Transforming Functions

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Weimin Wang ◽  
Yongle Wu ◽  
Yuanan Liu
Keyword(s):  
High Power ◽  
Power Divider ◽  
Dual Band ◽  
Coupled Line ◽  
Analytical Design ◽  
Power Dividers ◽  
Parameters Analysis ◽  
Analytical Design Methods ◽  
Mode Technique ◽  
Good Agreement

A novel coupled-line structure is proposed to design dual-band and high-power Gysel power dividers with inherent impedance-transforming functions. Based on traditional even- and odd-mode technique, the analytical design methods in closed-form formula are obtained and the accurate electrical parameters analysis is presented. Due to the usage of coupled-line sections, more design-parameter freedom and a wider frequency-ratio operation range for this kind of dual-band Gysel powder divider are obtained. Several numerical examples are designed and calculated to demonstrate flexible dual-band applications with different impedance-transforming functions. A practical microstrip power divider operating at 2 GHz and 3.2 GHz is designed, fabricated, and measured. The good agreement between the calculated and measured results verifies our proposed circuit structure and analytical design approach.

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