Quad-band power dividers with generalized NRI metamaterial transmission lines

Author(s):  
D. Draskovic ◽  
D. Budimir
2009 ◽  
Vol 51 (4) ◽  
pp. 926-929 ◽  
Author(s):  
Francisco Aznar ◽  
Jordi Bonache ◽  
Alexandre Valcarcel ◽  
Ferran Martín

Author(s):  
Dmitry Kholodnyak ◽  
Polina Kapitanova ◽  
Stefan Humbla ◽  
Ruben Perrone ◽  
Jens Mueller ◽  
...  

2019 ◽  
Vol 11 (08) ◽  
pp. 765-773
Author(s):  
Gaoya Dong ◽  
Weimin Wang ◽  
Yuanan Liu

AbstractA series of compact filtering power dividers (FPDs) with simple layouts are proposed based on coupling topology. The structure of the presented FPD1 is composed of three resonators and one isolating resistor. These FPDs can be designed based on coupling matrix filter theory. A half-wave transmission line is employed in FPD2 to introduce a transmission zero (TZ) locating at 1.27f0. The FPD3 is designed by replacing quarter-wave transmission lines in FPD2 with quarter-wave coupled lines, which will produce a TZ locating at 1.96 f0 and extend upper stopband bandwidth. For verification, three FPDs centered at 2.45 GHz are fabricated and measured. All measured results are in good agreement with the full-wave simulation results.


Frequenz ◽  
2016 ◽  
Vol 70 (5-6) ◽  
Author(s):  
Feng Wei ◽  
Ning-Wei Chen ◽  
Wei-Jin Li ◽  
Lei Chen

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.


1970 ◽  
Vol 18 (10) ◽  
pp. 682-688 ◽  
Author(s):  
Hung Yuet Yee ◽  
Feng-Cheng Chang ◽  
N.F. Audeh

Author(s):  
Kuan-Dong Gao ◽  
Peng Xu ◽  
Zhen-Hai Shao ◽  
Lianfu Liu
Keyword(s):  

Author(s):  
Dmitry Kholodnyak ◽  
Polina Kapitanova ◽  
Irina Vendik ◽  
Stefan Humbla ◽  
Ruben Perrone ◽  
...  

2013 ◽  
Vol 5 (3) ◽  
pp. 205-212 ◽  
Author(s):  
Chong Li ◽  
Lai Bun Lok ◽  
Ata Khalid ◽  
Vasileios Papageorgiou ◽  
James Grant ◽  
...  

We present the design, fabrication, and measurement of a 2-way modified Wilkinson divider constructed in a coplanar geometry exhibiting ultra wideband isolation, transmission, and port matching in the millimeter-wave frequency range. The proposed divider replaces the lumped resistor in the conventional Wilkinson divider with two quarter-wave length transmission lines, a phase inverter, and two 2Z0 resistors. Except for the three ports that are coplanar waveguides (CPWs), the main body of the divider uses coplanar striplines (CPS). The phase inverter is realized using a simple airbridge-based crossover which is compatible with a modern monolithic microwave integrated circuit process. The divider has a ring-like configuration fabricated on a 620 µm thick semi-insulating GaAs wafer using electron beam lithography (EBL) technology. Three-dimensional (3D) full-wave electromagnetic simulations have been carried out to optimize the design and investigate the possible effect of fabrication tolerance on the performance of the crossover and the divider. Two dividers working at center frequencies of 25 and 80 GHz have been designed, fabricated, and tested. They all show consistent performance in terms of bandwidth, isolation, and port matching. Experimental and simulation results are in excellent agreement.


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