Microstrip Four-Way Reconfigurable Single/Dual/Wideband Filtering Power Divider With Tunable Frequency, Bandwidth, and PDR

Zhu, Chuanming; Xu, Jin; Wu, Wen

doi:10.1109/tie.2017.2787577

Cited by 34 publications

(18 citation statements)

References 24 publications

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“…For multi-channel applications and circuit miniaturisation, four-way FPDs play a crucial role. To the best of the authors' knowledge, only a few four-way FPDs have been developed and most of them operate with single band [7][8][9][10][11][12][13][14][15][16][17][18]. In [7,16], four-way FPDs are realised based on stubs shunted coupled lines which however exhibit either a narrowband (6%) [7] or relatively poor in-band isolation [16].…”

Section: Introductionmentioning

confidence: 99%

“…In [7,16], four-way FPDs are realised based on stubs shunted coupled lines which however exhibit either a narrowband (6%) [7] or relatively poor in-band isolation [16]. Besides, four-way reconfigurable FPDs in [17] is presented based on several coupled resonators ( N ≥4). However, additional input feedlines and several employed resonators result in a large circuit size and unsatisfactory performance.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and design of compact four‐way single‐ and dual‐band filtering power dividers on a new adjustable multi‐mode topology

Zhang

Qian

et al. 2020

IET Microwaves, Antennas & Propagation

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Four‐way single‐/dual‐band operation integrated filtering power divider (FPD) with new design topology is presented in this study. For either single‐ or dual‐passband response, it involves only one same‐type pair of multi‐mode resonators and three isolation resistors, comparing with other existing four‐way FPDs. By adopting the even‐/odd‐mode analysis method to flexibly control the resonant modes of the designed resonator and select isolation resistances, both single‐ and dual‐band four‐way filtering power division responses are specified and derived with the same one configuration. The proposed four‐way FPD designs stand out from the reported ones by both nice operation performance, flexible topology with reduced number of resonators, and no additional feeding network at input port. For demonstration, two prototypes for four‐way single‐ and dual‐band FPDs are implemented following the given design procedure, respectively. Both simulated and measured results are exhibited to verify the theoretical design concept.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis and design of compact four‐way single‐ and dual‐band filtering power dividers on a new adjustable multi‐mode topology

Zhang

Qian

et al. 2020

IET Microwaves, Antennas & Propagation

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“…Lumped-elements have been utilized in multi-way power divider to feature length-saving or filtering property [7,8]. Capacitors can be added between the coupled lines to improve the return loss of outputs [9]. At low frequencies, the power divider is designed using lumped-elements to obtain size reduction or high isolation [10,11].…”

Section: Introductionmentioning

confidence: 99%

Multi-way differential power divider with microstrip output interfaces

Sun

Twumasi

2020

Journal of Electrical Engineering

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The design and implementation of planar multi-way differential power dividers remain a challenge in terms of the compactness and especially, for the achievable characteristic impedance of the quarter-wavelength transformer when considering large number of outputs. In this work, the double-sided parallel stripline is recommended to realize such a power divider with out-of-phase outputs, and explicit design methods are provided. The proposed multi-way power divider was developed without the use of lump elements on a single substrate. For system applications, a prototype operating at 41.6 MHz with 12 pairs of out-of-phase outputs that utilize the microstrip line as the output interfaces was fabricated and examined. At the center frequency of 41.6MHz, the developed prototype measured insertion losses akin to 14.3 dB as compared with the theoretical data of 13.8 dB. The attainable impedance bandwidth ranges from 10 MHz to 80 MHz under a magnitude imbalance of ±0.3 dB. The isolations of the adjacent outputs are about 13.1 dB as compared with the theoretical values of 14.428 dB, and are better than 34 dB for more distant ones. Parameter measurements are in good agreement with the numerical predications, thus demonstrating the realization of the proposed multi-way power divider.

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“…To cater for the future wireless communication system that requires the multiple-path operation, some multiport filtering power dividers have been reported recently. The mainstream design approach can be generally divided into two types: The first is using the traditional Wilkinson power dividers introduced by coupled filtering structure [24]- [29]. In this method, the required powerdivision ratio can be achieved by adjusting the coupling level [29], but the previous work with large number of output ports was rarely mentioned.…”

Section: Introductionmentioning

confidence: 99%

“…The mainstream design approach can be generally divided into two types: The first is using the traditional Wilkinson power dividers introduced by coupled filtering structure [24]- [29]. In this method, the required powerdivision ratio can be achieved by adjusting the coupling level [29], but the previous work with large number of output ports was rarely mentioned. The second approach is to use the coupling resonators directly [30]- [34].…”

Section: Introductionmentioning

confidence: 99%

Universal Design Approach for Multiport Filtering Power Divider

Chen

Qin

et al. 2019

IEEE Access

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This paper presents a universal design approach of multiport filtering power divider with the arbitrary power-division ratio, which is applicable for the designs of the single-ended/balanced circuit or hybrid of them. The power allocation in a specified passband is fulfilled by relying on two key factors in building a filter, i.e., coupling coefficient and external Q-factor (Q e). After synthesis for the bandpass response, the total input/output Q e and the total coupling coefficient at each power dividing level can be determined. Subsequently, according to the desired power-dividing ratio, the coupling coefficient between the two coupled resonators and Q e of each output can be easily determined. Once the parameters for filtering response are fixed, the power allocation can be determined by Q e without effect on the filtering response. Thus, the two functions of bandpass and power dividing can be designed independently, which provides tremendous freedom for the overall design with the arbitrary order of filtering and number of output ports. The proposed topology has several advantages, such as flexibility, cost efficiency, and simple design procedure, which would be a good candidate for multiple-path operation in the current and future MIMO systems. INDEX TERMS Topology, fusion design approach, multiport technology, arbitrary division ratio, filtering power divider.

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Microstrip Four-Way Reconfigurable Single/Dual/Wideband Filtering Power Divider With Tunable Frequency, Bandwidth, and PDR

Cited by 34 publications

References 24 publications

Analysis and design of compact four‐way single‐ and dual‐band filtering power dividers on a new adjustable multi‐mode topology

Analysis and design of compact four‐way single‐ and dual‐band filtering power dividers on a new adjustable multi‐mode topology

Multi-way differential power divider with microstrip output interfaces

Universal Design Approach for Multiport Filtering Power Divider

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