Harmonics suppression of Wilkinson power divider using spurlines with adjustable rejection bands

Liu, Haiwen; Shi, Zhiguo; Boutejdar, A.; Knoechel, R.; Schuenemann, K.

doi:10.1002/mop.23172

Cited by 11 publications

(14 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Through Eqs. (1)-(3), we can calculate the value of the resistances, inductors, and capacitors, respectively [2,3]. The extracted parameters of the L-type spurline resonator simulated by the advance design system (ADS2008) are L ¼ 1.3 nH, C ¼ 0.59 pF, and R ¼ 3.63 kX.…”

Section: The Spurline Resonatorsmentioning

confidence: 99%

“…Liu et al [2] used spurline and meander spurline resonators to build bandstop filters, and circuit modeling proved their good results. Liu et al [3] also used spurlines in a Wilkinson power divider for harmonic suppression. However, the good performances of these resonators as a frequency determining network have not been applied to oscillators.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Spurline resonators design and its implementation to microwave oscillators

Shrestha

Kim

2011

Micro & Optical Tech Letters

View full text Add to dashboard Cite

In this article, two compact L‐type spurline and symmetric meander spurline resonators were designed and implemented into low phase‐noise microwave oscillators for X‐band application. These resonators have a bandstop characteristic that can be used in the series feedback oscillator topology. Both of these miniaturized resonators are designed with different spurline structures, the first one being an L‐type spurline and the other one a meander spurline. Both resonators exhibited inherently inductive characteristics and had a loaded stub with capacitive characteristics. The oscillators using the spurline and the symmetric meander spurline resonators show excellent phase‐noise performances of −96.23 dBc/Hz and −104.39 dBc at a 100 kHz offset from the carrier frequency of 9.2 and 9.0 GHz with an output power of 12.47 and 16.42 dBm, respectively. The latter oscillator exhibited better phase‐noise characteristics due to the high Q value of the symmetric meander spurline resonator. The figure of merit of the first oscillator achieved −174, and the latter achieved −181.36. The size of the oscillator is reduced by constructing a parallel combination of the open stub at the source and the DC voltage supply at the drain © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:171–176, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26461

show abstract

Section: The Spurline Resonatorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spurline resonators design and its implementation to microwave oscillators

Shrestha

Kim

2011

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

“…However, the quarter-wavelength transmission lines in the conventional Wilkinson power dividers result in the presence of the spurious passbands. In recent years, some new structures for size reducing [2][3][4][5][6] or harmonics suppression [7][8][9][10][11][12][13] have been developed. In [7], an λ/4n open stub is placed at the center of each λ/4 branch of the power divider to suppress the nth harmonic component and its odd multiples, but an additional inductor is required.…”

Section: Introductionmentioning

confidence: 99%

“…A planar power divider with microstrip electromagnetic band gap (EBG) cells for harmonics suppression is presented in [10]. Spur-lines are also used to suppress the high order harmonics in [11]. The method of using microstrip high-low impedance resonator cells is presented in [12] to reduce the size of the power divider and suppress high order harmonics.…”

Section: Introductionmentioning

confidence: 99%

Design of a Compact Wilkinson Power Divider With High Order Harmonics Suppression

Xu¹,

Tang²

2014

PIER Letters

View full text Add to dashboard Cite

Abstract-A new method for designing compact Wilkinson power dividers with three order harmonics suppression is presented. The quarter-wavelength transmission line in the traditional Wilkinson power divider is replaced by two pairs of parallel coupled lines with one end connected in series with an open stub. With this structure, the quarter-wavelength line will be shorter and three attenuation poles can be added in the stopband. As a result, this newly proposed structure carries the functions of impedance matching at operating frequency and three orders harmonics suppression. In this study, an example of power divider operating at 1 GHz is designed and fabricated. The measured results show good performance at the operating frequency. In addition, the second, third and fourth harmonics suppressions are 43 dB, 49 dB and 37 dB, respectively, which validates the feasibility of the proposed design.

show abstract

“…In [15], Wang et al use four microstrip high-low impedance resonator cells to achieve harmonics suppression. Spur-lines are used to achieve the stopband at the spurious frequency in [16]. In [17,18], the methods for one order harmonic suppression are presented.…”

Section: Introductionmentioning

confidence: 99%

A Modified Microstrip Wilkinson Power Divider With High Order Harmonics Suppression

Peng

Zhang²,

Leng³

et al. 2013

PIER C

View full text Add to dashboard Cite

Abstract-In this paper, a modified Wilkinson power divider structure with three order harmonics suppression is presented. The quarter-wavelength microstrip lines in the traditional Wilkinson power divider (WPD) are replaced by two transmission line segments with ends connected (TTLWEC). The TTLWEC performs the functions of impedance transformation and three order harmonics suppression. The design equations are deduced by odd-and even-mode theory. An example of power divider operating at 1 GHz is designed and fabricated based on the printed circuit board technology. The measured results of 3.13 dB insert loss (IL) and 35 dB return loss (RL) are obtained at the operating frequency, and the first, second and third harmonic harmonics suppressions are −38 dB, −44 dB and −39 dB, respectively, which agree well with the simulated results and validate the availability of the proposed structure.

show abstract

Harmonics suppression of Wilkinson power divider using spurlines with adjustable rejection bands

Cited by 11 publications

References 11 publications

Spurline resonators design and its implementation to microwave oscillators

Spurline resonators design and its implementation to microwave oscillators

Design of a Compact Wilkinson Power Divider With High Order Harmonics Suppression

A Modified Microstrip Wilkinson Power Divider With High Order Harmonics Suppression

Contact Info

Product

Resources

About