Design and analysis of multifrequency Wilkinson power dividers using nonuniform transmission lines

2011 ◽  
Vol 21 (5) ◽  
pp. 526-533 ◽  
Author(s):  
Khair Al Shamaileh ◽  
Abdullah Qaroot ◽  
Nihad Dib ◽  
Abdelfattah Sheta
Author(s):  
Nadera Najib ◽  
Kok Yeow You ◽  
Chia Yew Lee ◽  
Mohamad Ngasri Dimon ◽  
Nor Hisham Khamis

This paper proposed three modified Wilkinson power dividers in order to achieve a size reduction and a wide bandwidth. The first structure presented the power divider using compact folded step impedance transmission lines rather than the uniform microstrip line design for operating center frequency of 3 GHz. The second structure showed the power divider with delta-stub for 2.4 GHz. Finally, the third modified structure introduced the two-section Wilkinson power divider using series-delta stub for center frequency of 2.4 GHz as well. The study managed to get an overall dimension of 15 mm × 9.5 mm for the first proposed design achieving a reduction of 75.6 % and fractional bandwidth of 133 %. For the second proposed structure, the size was 15 mm × 15 mm with a reduction of 56 % and fractional bandwidth of 56 %.  While the third design size was 17 mm × 15 mm with a reduction of 63.6 % and the structure achieved a broadband bandwidth with fractional bandwidth of 220 %.  The proposed power dividers used RT/duroid 5880 substrate with a thickness of 0.38 mm. Simulation and measurement results indicated that the modified power dividers showed equal power division, good phase balance, high isolation between output ports, and good return loss better than -12 dB covering the operating frequency range<strong>.</strong>


2011 ◽  
Vol 25 (16) ◽  
pp. 2201-2211 ◽  
Author(s):  
W. Huang ◽  
C.-J. Liu ◽  
Q. Chen ◽  
Y.-N. Li ◽  
X. Chen ◽  
...  

2020 ◽  
Vol 71 (6) ◽  
pp. 423-427
Author(s):  
Vaidotas Barzdenas ◽  
Aleksandr Vasjanov ◽  
Gediminas Grazulevicius ◽  
Andzej Borel

AbstractIn this paper, four differently shaped Wilkinson power dividers are presented by selecting the same physical length of two-section transmission lines, dual arbitrary frequency band Wilkinson power dividers can be achieved. The 2.4 GHz (WLAN) and 5.9 GHz (DSRC IEEE 802.11p) frequency bands are selected to complement the future development of multi-band, multi-standard transceivers. To improve physical separation and electrical isolation between the two output ports a parallel RLC circuit is employed. For verification, the simulated and measured performance results of dual-band Wilkinson power dividers implemented on the Rogers 4003C laminate are presented. The measurement results for the fabricated Wilkinson power dividers were in good agreement with theoretical simulation results and show dual-band characteristics.


2015 ◽  
Vol 25 (7) ◽  
pp. 563-572 ◽  
Author(s):  
Khair A. Alshamaileh ◽  
Mohammad J. Almalkawi ◽  
Ruthwik R. Junuthula ◽  
Vijay K. Devabhaktuni ◽  
Peter H. Aaen

2015 ◽  
Vol 24 (08) ◽  
pp. 1550127
Author(s):  
Huan-Zhu Wang ◽  
Jia-Lin Li ◽  
Jian-Peng Wang ◽  
Wei Shao ◽  
Xue-Song Yang

Microstrip Wilkinson power dividers with harmonic suppression and size reduction are investigated. It is found that by loading reactive components at the middle of high impedance transmission lines (TLs), both size reduction and harmonic suppression can be achieved. Analyses and designs of such a kind of power divider are formulated in this paper. To demonstrate the design methodology, two power dividers centered at 1.8 GHz are optimally designed and confirmed by experiments. As compared with conventional Wilkinson power divider, the proposed power divider exhibits 55.6% size reduction, and high suppressions are achieved for 2nd and 3rd harmonic components. Both simulations and measurements are presented with good agreement.


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