180° out-of-phase power divider based on double-sided parallel striplines

Chen, J.-X.; Chin, Chun-Chieh; Lau, Kwok Wai; Xue, Quan

doi:10.1049/el:20061767

Cited by 55 publications

(48 citation statements)

References 4 publications

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“…When impedance Z 2 is chosen an arbitrary value from 20 Ω to 130 Ω, the impedance Z 3 increases along with the decrease of electrical length θ 3 ; however the resistance R 0 keeps unchanged. The variation trend can also been seen from Equations (6) and (7).…”

Section: The Discussion Of the Electrical Parametersmentioning

confidence: 62%

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Complex Impedance-Transformation Out-of-Phase Power Divider With High Power-Handling Capability

Bei¹,

Zhang²,

Huang³

2015

PIER Letters

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Abstract-A novel 180• out-of-phase power divider with complex-source to complex-load impedance transformation and high power-handling capability is proposed in this paper. It is composed of three double-sided parallel-strip lines (DSPSLs), a conduct plane in the middle as common ground, and two resistors for heat sinking and high isolation. Based on the rigorous odd-and even-mode analytical methods, closed-form design equations about electrical parameters are obtained. To demonstrate our design theory, a practical three-layer out-of-phase power divider is designed, simulated and measured. The measured results show that the return losses |S ii | (i = 1, 2, and 3) are all larger than 17 dB. The insertion loss |S 21 |(|S 31 |) is 3.6 dB (3.7 dB). The isolation |S 23 | is −24 dB, and the output phase difference is −177 • at the operating frequency. Good agreements between the simulated and measured results verify our design theory.

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Section: The Discussion Of the Electrical Parametersmentioning

confidence: 62%

“…However, the 180 • out-of-phase power divider [7] with complex impedances transformation, which is very useful in the balanced mixers, push-pull circuits, is still blank. Therefore, this paper mainly discusses 180 • out-of-phase power divider with inherent complex-source to complex-load impedance transformation.…”

Section: Introductionmentioning

confidence: 99%

Complex Impedance-Transformation Out-of-Phase Power Divider With High Power-Handling Capability

Bei¹,

Zhang²,

Huang³

2015

PIER Letters

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“…Out-of-phase power dividers (PD) [1], which can convert one signal into two-way out-of-phase output signals with equal power division, can be widely used in the balanced circuits and systems, such as pushpull power amplifiers, balanced mixers, and the feeding network of balanced antennas. According to the open literatures, the research about out-of-phase PD can be classified into single-band equal PD [1], single-band PD with arbitrary power division ratio [2], dual-band application [3][4][5], and single-band PD with complex impedance transformation [6,7].…”

Section: Introductionmentioning

confidence: 99%

Out-of-Phase Power Divider With Harmonic Suppression

Bei¹,

Chen²,

Zhao³

et al. 2017

PIER C

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Abstract-In this paper, a three-layer circuit structure based on double-sided parallel-strip lines (DSPSLs) is proposed to design one out-of-phase power divider (PD) with equal power division and harmonic suppression. This PD, which is composed of four DSPSLs, one middle conductor, and two grounded resistors, features transmission suppression at two specified frequencies and all the even-order harmonics. Closed-form design equations are derived based on the traditional even-and odd-mode methods, and the circuit scattering parameters are also given. Finally, a practical PD operating at 0.92 GHz is designed and fabricated. The measured results show that this PD has equal power division with out of phase, harmonic suppression, good ports matching, and high outputs isolation.

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“…However, these structures suffer from large circuit size, which make them unsuitable for compact system. To design compact out-of-phase PD without phase shifter, a lot of structures have been reported [11][12][13][14][15][16][17][18][19]. According to the layers of the reported works, out-of-phase power dividers can be classified into two types: multilayer structures [11][12][13][14][15][16][17] and uniplanar structures [18,19].…”

Section: Introductionmentioning

confidence: 99%

“…To design compact out-of-phase PD without phase shifter, a lot of structures have been reported [11][12][13][14][15][16][17][18][19]. According to the layers of the reported works, out-of-phase power dividers can be classified into two types: multilayer structures [11][12][13][14][15][16][17] and uniplanar structures [18,19]. Double-side parallel striplines (DSPSL) [11][12][13][14], slotline T-junction (STJ) [15], multilayer microstrip-slotline coupling structure (MMSC) [16], and microstrip to slotline transitions (MST) [17] are applied in multilayer structures.…”

Section: Introductionmentioning

confidence: 99%

A Symmetrical Outputs Uniplanar Out-of-Phase Power Divider Without Phase Shifter

Miao¹,

Zheng²,

Yang³

et al. 2014

PIER Letters

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Abstract-A new out-of-phase power divider (PD) without phase shifter at the output ports is proposed. Based on admittance matrix, a new topology of uniplanar power divider with symmetrical outputs is designed. Under conditions of good matching, perfect isolation, and 180 • phase difference between two output ports, the corresponding design equations and synthesis procedures are derived and given with admittance matrix. To verify the design approach, an out-of-phase power divider operating at 2 GHz with equal power division ratio is designed, fabricated, and measured. Experimental results demonstrate that the input return loss is better than 32 dB, the insertion loss is less than 0.29 dB and the isolation is better than 33 dB. The amplitude imbalance between the output ports is 0.03 dB and the phase difference between the two output ports is 181.6 • at the operation frequency. Further more, 49.9% relative bandwidth of 15 dB return loss and 39.4% relative bandwidth of 20 dB port isolation are achieved.

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180° out-of-phase power divider based on double-sided parallel striplines

Cited by 55 publications

References 4 publications

Complex Impedance-Transformation Out-of-Phase Power Divider With High Power-Handling Capability

Complex Impedance-Transformation Out-of-Phase Power Divider With High Power-Handling Capability

Out-of-Phase Power Divider With Harmonic Suppression

A Symmetrical Outputs Uniplanar Out-of-Phase Power Divider Without Phase Shifter

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