Unequal Wilkinson Power Divider With Reduced Arm Length For Size Miniaturization

Du, Zhi-Xia; Zhang, Xiu Yin; Wang, Kai-Xu; Kao, Hsuan‐Ling; Zhao, Xiao-Lan; Li, Xiao Huan

doi:10.1109/tcpmt.2015.2513763

Cited by 30 publications

(20 citation statements)

References 29 publications

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“…In all the cases, the measurement results agreed well with the simulation. The performance comparison was made against previously published works [7,8,10,12,13] and are listed in Table 2, where the bandwidth ratio in percent was defined as the corresponding Sparameter, being less than -20 dB. While the impedance bandwidth at the common port of [7] outperformed the fabricated prototype, both the insertion loss and isolation bandwidth were narrower, leading to a limited practical bandwidth of operation.…”

Section: Experimental Verificationmentioning

confidence: 99%

“…Meanwhile, the position of the INW must be optimized such that the impedance matching conditions can be satisfied at the desired frequency bands of operation. Successful implementation of such a concept can be found in [3][4][5][6][7][8] with extension to the general N-way power dividers [4][5][6]. While the efforts were mainly devoted to keeping the overall electrical length to be the same as the conventional WPD (180 degrees), further reduction in the transmission-line length was possible by replacing the high-impedance section with coupled lines [7].…”

Section: Introductionmentioning

confidence: 99%

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Novel Low-Cost Power Divider for 5.8 GHz

2020

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This paper presents a new capacitive lump-free structure for power dividers using a printed-circuit board, while maintaining size reduction and physical isolation. The conventional lumped capacitors approach has self-resonant problem and cause worse S 22 and isolation at high frequencies. To overcome such technical issues, the coupled-line structures were introduced in the isolation network. After optimizing the distance between output ports and position of the isolation network, tuning the characteristic impedance and electrical length of transmission lines can decide the value of the lump resistor. The first example was designed at 1 GHz, and the resistor in the isolation network was 330 ohm, having 0.2-dB insertion loss and 19% total bandwidth, while maintaining 80-degree distance between split ports and 180-degree total length, providing 21% to 67% size reduction. The second example was designed at 5.8 GHz, which was five times greater than in past research, using an RO4003C substrate while maintaining a 0.24-dB insertion loss, 17% total bandwidth, and 0.06 dB amplitude imbalance, which was only 0.01 dB more than in recent research. Such superior performance is mainly attributed to the coupled transmission lines in the isolation network featuring a capacitive lump-free isolation network. Our data indicate that amplitude imbalance, bandwidth, and miniaturization are superior to any published data.

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Section: Experimental Verificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel Low-Cost Power Divider for 5.8 GHz

2020

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“…Thus, a lot of effort from microwave community has been dedicated to design WPDs with unequal power division ratios. The first method that is widely used is the uneven‐impedance method . Here, the characteristic impedance of the two bisections is altered to attain unequal power division.…”

Section: Recent Progress In Design Of Multi‐band Passive Componentsmentioning

confidence: 99%

Advanced technologies for next‐generation RF front‐end modules

Sahu

Aaen

Devabhaktuni

2019

Int J RF Microw Comput Aided Eng

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The complexity of RF front-end (RFFE) modules of wireless devices has increased dramatically over the past decade. In order to meet the demands for future mobile communications, RFFEs will need to enable multiband for global roaming, and multi-mode to support multiple cellular modes, incorporate beamforming antennas, and operate at mm-wave frequencies. To this end, this article presents a summary of the recent progress in RF substrate technologies, waveguide architectures and multi-band design techniques for 5G RFFE modules, and summarizes the present and future challenges in RFFE module design.

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“…Topology of N : 1 unequal Wilkinson power divider is shown in Figure 1, and 2 , 3 are loaded impedances of output ports 2 and 3, while int is isolation impedance [6][7][8].…”

Section: N : 1 Unequal Wilkinson Power Dividersmentioning

confidence: 99%

A Miniaturized 4 : 1 Unequal Wilkinson Power Divider Using Artificial Transmission Lines and Double-Sided Parallel-Strip Lines

Huang

Ruan

Tan

2017

International Journal of Antennas and Propagation

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A 4 : 1 unequal Wilkinson power divider using microstrip artificial transmission lines (ATLs) is proposed. For the ATL, a series of meandered-line inductors, parallel-plate capacitors, and interdigital capacitors are employed. The designed power divider is composed of three ATLs, and a method has been proposed using technology of ATLs and double-sided parallel-strip lines (DSPSLs) to design line of high characteristic impedance. Microstrip line with very high characteristic impedance of over 150 Ω has been achieved by this method, which cannot be easily achieved by conventional transmission lines because of comparably thin conductor width. The fabricated 4 : 1 unequal power divider has good operational performance and occupies 55.3 mm×37.8 mm, which is only about 40% of area compared to a conventional one at 0.9 GHz.

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Unequal Wilkinson Power Divider With Reduced Arm Length For Size Miniaturization

Cited by 30 publications

References 29 publications

Novel Low-Cost Power Divider for 5.8 GHz

Novel Low-Cost Power Divider for 5.8 GHz

Advanced technologies for next‐generation RF front‐end modules

A Miniaturized 4 : 1 Unequal Wilkinson Power Divider Using Artificial Transmission Lines and Double-Sided Parallel-Strip Lines

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