A Planar Balanced Power Divider With Tunable Power-Dividing Ratio

Yu, Xiao; Lin, Feng; Ma, Hongzhong; Tan, Xiangguan; Sun, Houjun

doi:10.1109/tmtt.2017.2722403

Cited by 32 publications

(15 citation statements)

References 18 publications

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“…Based on the balanced bandpass filter, the balanced-tobalanced diplexer was proposed in [6]. For the balancedto-balanced (BTB) power divider, several researches were presented [7]- [11]. In [7], a BTB power divider was presented but without good isolation between the output ports.…”

Section: Introductionmentioning

confidence: 99%

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Balanced-to-Balanced Gysel Filtering Power Divider With Arbitrary Power Division

Luo

Tang

et al. 2020

IEEE Access

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This paper presents the balanced-to-balanced Gysel filtering power divider with arbitrary power division for first time. Based on the multicoupled series-resonator bandpass prototype network, a detailed theory analysis is presented and the corresponding design equations are concluded. Two filtering power dividers with the division ratio of 2 and 3 are realized using the half-wavelength resonator and the short-stub-loaded resonator. Finally, two example circuits are fabricated and measured for verification. The measured results show good agreement with the simulated and confirm the theory. INDEX TERMS Balanced-to-balanced power divider, bandpass filtering response, arbitrary power division, Gysel power divider.

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Section: Introductionmentioning

confidence: 99%

“…In [10], a wideband BTB Willkinson power divider was proposed. In [11], a balanced power divider with tunable power division was proposed. Moreover, the other balanced passive components were also reported, such as the balanced coupler [12] and the balanced crossover [13].…”

Section: Introductionmentioning

confidence: 99%

Balanced-to-Balanced Gysel Filtering Power Divider With Arbitrary Power Division

Luo

Tang

et al. 2020

IEEE Access

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“…agility were reported [23]- [27], and the bandwidth control [25] or dual tunable passbands [27] was also attained therein. To enhance adaptability to dynamic communication environments, such as in smart antennas and software defined radios, the balanced power divider [28] or coupler [29] with tunable power-dividing ratio was recently reported. The power divider in [28] can achieve a wide tuning range at the center frequency.…”

Section: Introductionmentioning

confidence: 99%

A Tunable Balanced Coupler With Improved Phase Balance and Extended Bandwidth

2019

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This paper proposes a balanced coupler with improved phase balance and extended bandwidth for a wide range of tunable power-dividing ratios. This differential coupler uses only two varactors and can demonstrate tunable power-dividing ratio and quadrature phase difference between outputs with theoretically perfect differential-mode return loss and port isolation, and complete common-mode suppression. The coupler analysis, design equations/graph, and parametric study will be given in detail. As a proof-of-concept, a microstrip prototype operating at 1 GHz was fabricated. Measured results show that the power-dividing ratio can be tuned from-5.5 dB to 11.9 dB at the center frequency where the insertion loss is less than 0.84 dB, the phase imbalance and isolation between differential outputs are less than 3.9 • and greater than 23.2 dB, respectively. Moreover, the differential-mode return loss and the common-mode rejection are greater than 27.5 dB and 35.2 dB, respectively. Measured and simulated results are in good agreement. INDEX TERMS Balanced, CMRR, differential, mixed-mode, power-dividing ratio, quadrature coupler, tunable, varactor.

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“…Introduction: In recent years, numerous reconfigurable radiofrequency (RF) systems, including millimetre-wave communication systems, RF-based wireless power transfer systems, and satellite communication systems, have been deployed. In their various applications, couplers and power dividers are conventionally used to obtain a wide tuning range of coupling coefficients at the centre frequency and operating frequencies for the 3 dB coupling states [1][2][3][4][5][6][7][8]. For instance, a varactor-tuned power divider with microstrip technology is useful in achieving a variable power-dividing ratio with low insertion loss [1][2][3].…”

mentioning

confidence: 99%

“…However, the real impedance of switches in the S-band causes severe performance degradation of the power divider. A continuous impedance transformer based on a varactor can be used as an alternative solution to cover a wide range of impedance variations with low insertion losses [1][2][3]. Fig.…”

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confidence: 99%

Reconfigurable hybrid matrix‐based power divider with variable power‐dividing ratios and frequencies

2020

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In this Letter, the authors present a reconfigurable power divider using a hybrid matrix with variable impedance tuners. The proposed hybrid matrix-based power divider with varactor-tuned impedance tuners (VTITs) can simultaneously obtain variable power-dividing ratios at the centre frequency and variable operating frequencies for the 3 dB coupling states. The VTITs, consisting of a transmission line, an inductor, and a varactor located between the line and the inductor, are connected in parallel between two hybrid couplers for high impedance variation. Measured results demonstrate that the power-dividing ratio of the proposed divider varies from −14.3 to 13.3 dB with a return loss above 20 dB and the isolation above 20 dB at a centre frequency of 2.45 GHz. Moreover, it achieves an insertion loss of 0.7-1.45 dB and a phase variation of less than 8°across the variable power-dividing ratio at the centre frequency. The frequency-tuning range for the 3 dB coupling states is 750 MHz with a small phase variation of 5°.

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A Planar Balanced Power Divider With Tunable Power-Dividing Ratio

Cited by 32 publications

References 18 publications

Balanced-to-Balanced Gysel Filtering Power Divider With Arbitrary Power Division

Balanced-to-Balanced Gysel Filtering Power Divider With Arbitrary Power Division

A Tunable Balanced Coupler With Improved Phase Balance and Extended Bandwidth

Reconfigurable hybrid matrix‐based power divider with variable power‐dividing ratios and frequencies

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