A Novel Power Divider Design With Enhanced Spurious Suppression and Simple Structure

Cheng, Kwok‐Keung M.; Ip, WY

doi:10.1109/tmtt.2010.2086473

Cited by 52 publications

(37 citation statements)

References 9 publications

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“…(11) present an analytical analysis approach for its external performances at the desired operating band. When the terminated impedances satisfy the condition that R S D 2R L D Z 0 D 100 and the 90 ı phase shifting constraint releases, the special case of this generalized transformer is also useful in designing equal power divider with enhanced spurious suppression (Cheng & Ip, 2010). In summary, the discussed theory makes the design and analysis of this generalized transformer become convenient and accurate.…”

Section: Design Circuit and Theory For Synthesis And Analysismentioning

confidence: 98%

“…The harmonic suppression also plays a key role in the designing of inverse class-E amplifiers (Mury & Fusco, 2007), frequency multipliers (Payandehjoo & Abhari, 2008), and antennas (Sujith et al, 2010). In addition, a compact microstrip Wilkinson power divider with harmonic suppression was presented in Wang et al (2009), while the spurious suppression of microstrip divider was enhanced by using a simple structure in Cheng and Ip (2010).…”

Section: Introductionmentioning

confidence: 99%

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A Generalized 90° Impedance Transformer with Improved Spurious Suppression for Arbitrary Real Terminated Impedances

Chen

Liu

et al. 2011

Electromagnetics

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A generalized impedance transformer for arbitrary real terminated impedances is proposed in this article. This transformer mainly features 90 ı phase shifting at the operating frequency, matching for arbitrary real terminated impedances, and improved spurious suppression. It consists of two-section transmission lines and three parallel transmission-line stubs. By equating the ABCD matrixes of the proposed impedance transformer and conventional quarter-wavelength impedance transformer, closed-form design equations are obtained as a final analytical design approach. Several numerical and measured microstrip transformers with improved spurious suppression are presented. Finally, experimental performances verify this generalized structure and the proposed rigorous design equations.

show abstract

Section: Design Circuit and Theory For Synthesis And Analysismentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

A Generalized 90° Impedance Transformer with Improved Spurious Suppression for Arbitrary Real Terminated Impedances

Chen

Liu

et al. 2011

Electromagnetics

View full text Add to dashboard Cite

show abstract

“…In addition, not all the technologies can have the analytical solutions, and the desired results are achieved mainly by computer optimization. Though the technology in Ip and Cheng (2010) and Cheng and Ip (2010) overcomes these shortcomings, the presented Wilkinson PDs cannot be suitable for high-power applications. However, the harmonics-suppression functions become much more important in highpower radio-frequency front applications to reduce the nonlinearity influences.…”

Section: Introductionmentioning

confidence: 99%

A Novel Harmonics-Suppression Coupled-Line Gysel Power Divider for Complex Terminated Impedances

Zhang

Liu

et al. 2014

Electromagnetics

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A novel symmetrical coupled-line circuit structure is proposed to design a kind of harmonics-suppression coupled-line Gysel power divider that has the advantages of a compact structure and complex source to load-terminated impedances. It consists of four pairs of coupled lines, three pairs of transmission line stubs, and two grounded isolation resistors. Based on the traditional even-and odd-mode technique, closed-form mathematical equations for both circuit electrical parameters and scattering parameters are obtained. For demonstration purposes, two typical simulation examples with realized physical dimensions in microstrip technology are presented, indicating equal power division, good return loss, perfect isolation, and harmonics suppression on three different frequencies or wide operating frequency band. Finally, two practical microstrip coupled-line Gysel power dividers are designed and fabricated to operate at approximately 1 GHz. Good agreement between the simulated and measured results verify the design.

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“…Many studies [26][27][28][29][30] present dividers with harmonic suppression. One design [26] replaces the quarter-wavelength (λ/4) transmission lines in the conventional Wilkinson power divider with a pair of coupled-lines on a defected ground structure (DGS) for effective harmonic suppression.…”

Section: Introductionmentioning

confidence: 99%

New Wilkinson Power Dividers Based on Compact Stepped-Impedance Transmission Lines and Shunt Open Stubs

Deng¹,

Guo²,

Kuo³

2012

PIER

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Abstract-This study presents new Wilkinson power dividers using compact stepped-impedance structures and capacitive loads to achieve the required power splitting. This approach can produce additional transmission zeros and effectively suppress the desired stopbands because shunt open stubs realize capacitive loads. This study proposes two equal-split dividers and two unequal-split dividers. For the first equal-split case, one shunt open stub forms the needed capacitor in each transmission path, creating one additional transmission zero in each path. To obtain one more transmission zero in each transmission path, the second Wilkinson power divider uses two shunt open stubs in each path to achieve the same capacitor value as the first divider. This study also tests unequal-split dividers with one and two transmission zeros in each path to confirm that compact stepped-impedance transmission lines and shunt-to-ground capacitors can be utilized in unequal power division.

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A Novel Power Divider Design With Enhanced Spurious Suppression and Simple Structure

Cited by 52 publications

References 9 publications

A Generalized 90° Impedance Transformer with Improved Spurious Suppression for Arbitrary Real Terminated Impedances

A Generalized 90° Impedance Transformer with Improved Spurious Suppression for Arbitrary Real Terminated Impedances

A Novel Harmonics-Suppression Coupled-Line Gysel Power Divider for Complex Terminated Impedances

New Wilkinson Power Dividers Based on Compact Stepped-Impedance Transmission Lines and Shunt Open Stubs

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