Dual-Band Filtering Balanced-to-Unbalanced Impedance-Transforming Power Divider With High Frequency Ratio and Arbitrary Power Division

Zhuang, Zheng; Wu, Yongle; Kong, Mengdan; Wang, Weimin; Liu, Yuanan

doi:10.1109/access.2018.2801816

Cited by 27 publications

(23 citation statements)

References 21 publications

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“…The comparison of the proposed dual-band BTU power divider with previous works is summarized in Table 3. Compared with [11]- [15], the proposed dual-band BTU power divider has more flexibility of the power division, such as arbitrary PDRs, the lower and upper band with different large signal output ports. The size of the proposed BTU power divider is less than that of [11], [12], [13], and [15].…”

Section: B Designmentioning

confidence: 99%

“…By using coupled ring resonators [12], couple lines [13], and π-shaped networks embedded with short-circuited stubs [14], some dual-band BTU equal power dividers are realized. Besides, stepped-impedance transmission lines (TL) are used to realize dual-band BTU unequal power dividers [15]. However, for the existing dual-band BTU power dividers, their power division ratios (PDRs) at the two operating frequencies are always the same, which limits the application for an independent dual-band operation mode.…”

Section: Introductionmentioning

confidence: 99%

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Dual-Band Balanced-to-Unbalanced Power Divider With Independent Power Division Ratios

Zhu

Wang

et al. 2020

IEEE Access

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A dual-band balanced to unbalanced power divider with independent power division ratios (PDRs) at two operating frequencies is proposed in this paper. The proposed power divider includes a dual-band phase inverter, a grounded resistor, and four transmission-line sections (TLS). By simultaneously changing characteristic impedances and electrical lengths of the four TLS, the independent PDRs are obtained, and the large-signal output port at lower and upper operation bands can be different. Compared to the previous works, it has more flexibility in the power division. Moreover, the closed-form design equations are provided and discussed. To verify the proposed structure, two BTU power dividers operating at 1.0 and 2.0 GHz are designed, fabricated, and measured. The PDRs of the first power divider are-6 and 6 dB for the lower and upper operation bands, respectively. The second power divider has the PDRs of 3 and-6 dB. The measured results are good agreements with the theoretical calculation and electromagnetic simulation. INDEX TERMS Balanced to unbalanced, dual-band, independent power division ratios, power divider.

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Section: B Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dual-Band Balanced-to-Unbalanced Power Divider With Independent Power Division Ratios

Zhu

Wang

et al. 2020

IEEE Access

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“…Up to now, many efforts have been made to enlarge the frequency ratio of two operating frequency bands. In Reference , a balanced‐to‐unbalance DBPD is proposed based on a dual‐band stepped‐impedance transformer, where the frequency ratio was extended to 5 to 10. By utilizing the double‐side parallel‐strip line and mid‐inserted conductor plane, the frequency ratio of 2.44 to 7.31 can be achieved .…”

Section: Introductionmentioning

confidence: 99%

Dual‐band Gysel power dividers with large frequency ratio and unequal power division

Sun

et al. 2020

Int J RF Microw Comput Aided Eng

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In this article, a dual‐band Gysel power divider is proposed based on the topology of finite‐ground microstrip line. The general design method for the large frequency ratio and unequal power division is derived and the detailed design rules are provided. It is shown that the frequency ratio can be achieved from 1 to 10, and the power division ratio of each frequency band can be separately determined. Moreover, the phase differences at two operating bands could be designed to be either in‐phase or out‐of‐phase. Finally, two prototypes are designed, implemented, and experimented to validate this proposal. The measured results of the first design show the frequency ratio of 4 with power division ratios of 2:1 in both passband, while the second example is designed with the frequency ratio of 10 with power division ratios of 2:1 and 1:1 in the first and second passband, respectively. Both results show a good agreement between the simulated and measured results.

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“…By loading capacitors and varactors to the coupled resonators, the features of tunable frequency were brought to the filtering power divider . In addition, the filtering power dividers, with types of balanced‐to‐balanced, balanced‐to‐unbalanced, and unbalance‐to‐balanced, were presented for the balanced‐circuit applications.…”

Section: Introductionmentioning

confidence: 99%

Design of a wideband filtering power divider with good in‐band and out‐of‐band isolations

Liu

Sun

et al. 2019

Int J RF Microw Comput Aided Eng

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In this article, a wideband filtering power divider with good in-band and out-of-band isolations is designed based on a hybrid Wilkinson and Gysel structure. To achieve a good in-band response, two additional in-band transmission poles can be introduced by installing the coupled-line structures at each port. By mounting a stepped impedance open stub at the input port, two transmission zeros are generated near the passband to improve the passband skirt. Furthermore, the out-of-band rejection and isolation are achieved by the other two transmission zeros, which are produced by the open stub and the three coupled-line sections mentioned above. Additionally, a good in-band isolation is realized by the isolation resistor between output ports. For the demonstration, a wideband filtering power divider centered at 1.5 GHz with a 56% fractional bandwidth and 20-dB isolation is designed and fabricated. The simulated and measured results are in good agreement with each other. K E Y W O R D Sfiltering power divider, Gysel, isolation, wideband, Wilkinson

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Dual-Band Filtering Balanced-to-Unbalanced Impedance-Transforming Power Divider With High Frequency Ratio and Arbitrary Power Division

Cited by 27 publications

References 21 publications

Dual-Band Balanced-to-Unbalanced Power Divider With Independent Power Division Ratios

Dual-Band Balanced-to-Unbalanced Power Divider With Independent Power Division Ratios

Dual‐band Gysel power dividers with large frequency ratio and unequal power division

Design of a wideband filtering power divider with good in‐band and out‐of‐band isolations

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