Compact Quasi-Planar Four-Way Power Divider With Wide Isolation Bandwidth

Zhang, Bo; Song, Kaijun; Xi, Wei; Yan, Yuchen; Zhou, Yedi; Yang, Fan

doi:10.1109/access.2019.2919124

Cited by 6 publications

(2 citation statements)

References 41 publications

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“…Recently, an interesting chained slotted power divider using half-mode substrate-integrated waveguide at X-band was presented [9], where compact size can be achieved at the cost of low isolation levels of about 12 dB. More recently, a very compact (0.17λ g × 0.22λ g ) quasi-planar four-way power splitter was reported [10], wherein high isolation (20 dB) bandwidth of 58% was achieved but with equal phases at its output ports. Similarly, a wideband (60%) equal-phase power splitter (EPS) using multi-stage connection lines was reported in [11].…”

Section: Introductionmentioning

confidence: 99%

A Compact Four-way Quadrature Power Splitter for 5G Low-band Applications

et al. 2023

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This article introduces an ultra-compact four-way quadrature power splitter (4W-QPS) based on a novel transmission-line compression technique called double-path zigzag microstrip line (DP-ZML). Detailed design techniques with modular approach are disclosed for the state-of-the-art 5G low-band applications. The theoretical predictions are verified with experimental results through a fabricated prototype that operates from 696.55 to 876.03 MHz with >15 dB return-losses and isolations, and 90°±4° quadrature phase between adjacent outputs. The compact size of this 4W-QPS is achieved at 0.21λg×0.21λg at a center frequency of 786 MHz.

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Section: Introductionmentioning

confidence: 99%

A Compact Four-way Quadrature Power Splitter for 5G Low-band Applications

et al. 2023

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“…A planar structure can be realized using standard printed circuit board (PCB) technology. PCB will significantly reduce the cost and weight of the design [16]- [19]. In addition, implementing isolation resistors in a PCB is much easier than other media such as waveguides.…”

Section: Introductionmentioning

confidence: 99%

Printed Circuit Board Implementation of N-Way Power Combiner With Isolated Input Ports

2022

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A planar implementation of N-way radial power combiners with isolated input ports is presented. While keeping the design simple, the presented combiner can be manufactured solely using printed circuit board technology, and as a result, has a low weight and manufacturing cost. As proof of concept, two power combiners are designed and built. First, a 6-way combiner working at the center frequency of 3.1 GHz with a fractional bandwidth of around 30% was designed. Our measurements of the fabricated combiner showed an input and output return loss of better than 10 dB in a frequency band of 2.65GHz-3.55 GHz where an isolation of higher than 23 dB, amplitude balance of ±0.1 dB, and phase balance of ±1 degree between the input ports were obtained. Then, a simple approach was implemented to widen the frequency band, achieving a fractional bandwidth of 80%. According to our measurements, the wideband combiner has an operating frequency band of 1.35-3.15 GHz, in which an input and output return loss of better than 10 dB with an isolation of higher than 21 dB, amplitude balance of ±0.15 dB, and phase balance of ±1 degree were achieved.INDEX TERMS Isolation, low cost fabrication, microstrip, N-way power combiner, printed circuit board, wideband, Wilkinson power combiner.

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High‐selectivity wideband four‐way filtering power divider with input absorptive feature

Zhang,

Liu,

Wang

et al. 2024

Circuit Theory & Apps

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In the paper, a high‐selectivity wideband four‐way filtering power divider with input absorptive feature is presented. It consists of two parallel‐coupled lines (CLs), two three‐coupled lines (TCLs), two open‐ended stepped branches, one absorptive branch, and two isolation resistors. The wideband filtering response is achieved by cascading the TCLs and CLs. While high selectivity is obtained by loading the open‐ended stepped branch, where two extra transmission zeros are generated. In addition, wide absorptive bandwidth with good isolations between adjacent output ports are realized by combining the absorptive branch with the isolation resistors. Equations are derived by using the two‐parity mode analysis, and main parameters are investigated in detail. For validation, a prototype was designed and fabricated. Test results show that the 3‐dB FBW can reach 87% with a 10‐dB input absorptive FBW of 200%. Besides, for the output ports with 10‐dB return loss and 10‐dB isolation, the FBWs are 94% and 91.5%, respectively. It also features high frequency selectivity and low insertion loss.

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Compact Quasi-Planar Four-Way Power Divider With Wide Isolation Bandwidth

Cited by 6 publications

References 41 publications

A Compact Four-way Quadrature Power Splitter for 5G Low-band Applications

A Compact Four-way Quadrature Power Splitter for 5G Low-band Applications

Printed Circuit Board Implementation of N-Way Power Combiner With Isolated Input Ports

High‐selectivity wideband four‐way filtering power divider with input absorptive feature

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