New technique for the design of ultra-broadband power dividers based on tapered lines

Mencia-Oliva, B.; Pelaez-Perez, A. M.; Almorox-González, P.; Alonso, J.I.

doi:10.1109/mwsym.2009.5165741

Cited by 15 publications

(8 citation statements)

References 4 publications

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“…The port 1 is the input HMSIW and the ports 2 and 3 are output ports of the HMSIWs. The input HMSIW is directly connected with the broadband MS Wilkinson power divider, and this power divider splits the power to the phase‐adjusting circuit of the HMSIW thru and the proposed CRLH‐HMSIW. This MS Wilkinson power divider is designed with 22 Ω characteristic impedance to minimize the radiation and match the impedance with the HMSIW.…”

Section: Design Considerationmentioning

confidence: 99%

“…The new CRLH‐HMSIW is realized with embedded lumped inductors and surface mount technology (SMT) capacitors on the top open edge of the HMSIW. The broadband MS Wilkinson power divider is re‐designed to integrate together with HMSIW input and output.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, we propose a broadband HMSIW balun using CRLH TL without the etched bottom metal‐layer. The proposed structure is consisted of a broadband MS Wilkinson power divider and two phase adjusted‐HMSIWs, new CRLH‐HMSIW and HMSIW thru. The new CRLH‐HMSIW is realized with embedded lumped inductors and surface mount technology (SMT) capacitors on the top open edge of the HMSIW.…”

Section: Introductionmentioning

confidence: 99%

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A broadband half mode substrate integrated waveguide balun using composite right/left‐handed transmission line

Eom

Lee

2017

Micro & Optical Tech Letters

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A broadband half mode substrate integrated waveguide (HMSIW) balun using composite right/left‐handed transmission line is proposed. The proposed structure is consisted of a broadband microstrip Wilkinson power divider and two phase adjusted‐HMSIWs, new CRLH‐HMSIW and HMSIW thru. The broadband microstrip Wilkinson power divider is bridged with the HMSIW in/outputs. The new CRLH‐HMSIW is designed with surface mounted capacitors and printed circuit board (PCB) embedded inductors on the open edge of the HMSIW. The measured prototype shows a 1 dB amplitude imbalance and 180° ± 5° phase difference in a frequency band of 8–13.3 GHz, which has 50% fractional bandwidth. The simulation shows a good agreement with the measurement.

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Section: Design Considerationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A broadband half mode substrate integrated waveguide balun using composite right/left‐handed transmission line

Eom

Lee

2017

Micro & Optical Tech Letters

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“…Replacing the uniform quarter wavelength transmission line (TL) by tapered microstrip line as in [6][7][8][9] extends the bandwidth but on the expenses of large length, lots of passband ripples, and to have good S-parameters, two or three-section WPD is used. Another technique is to add a stub network to WPD to improve the bandwidth and the output return loss.…”

Section: Introductionmentioning

confidence: 99%

Two-Way Modified Wilkinson Power Divider for Uwb Applications Using Two Sections of Unequal Electrical Lengths

Osman¹,

El-Tager²,

Abdelghany³

et al. 2016

PIER C

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This paper presents 2-way Power Divider (PD) for Ultra-Wideband (UWB) applications. The proposed power divider is realized using two cascaded sections of Wilkinson Power Divider (WPD) of equal characteristic impedances and unequal electrical lengths with inserted open stub to improve matching, isolation and to broaden the bandwidth. It is proved analytically using the "Even Odd Mode" analysis method and the ABCD matrix to obtain exact closed-form design equations. A detailed design methodology is introduced to facilitate the implementation without needing CAD optimization. To verify the proposed design methodology, a 2-way power divider is designed, fabricated on a Rogers RT/Duroid 5880 substrate and compared to other published 2-way microstrip power dividers. Measured data show good agreement with Electromagnetic (EM)-Circuit Co-Simulation, which proves the design equations and methodology. The proposed planar 2-way PD achieves an isolation ≥ 13.5 dB, input return loss ≥ 10 dB, output return loss ≥ 14.5 dB and exceeded insertion loss ≤ 0.9 dB (over the −3 dB splitting ratio) through the whole UWB range from 3.1 GHz to 10.6 GHz. Furthermore, it has a compact area of 22 mm × 15 mm, which provides 50% enhancement over similar microstrip PD circuits while achieving better isolation and matching.

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“…Several other modification works have been done on Wilkinson power divider to improve the operating bandwidth and isolation [14][15][16][17][18][19][20][21]. The design of Zhuanhong et al [21] showed input return loss better than 15 dB over the frequency range of 3-18 GHz and amplitude ripple in the transmission coefficient was 0.4 dB peak-to-peak over the bandwidth in their circuit simulation results.…”

Section: Introductionmentioning

confidence: 99%

Ultra Wideband Power Divider Using Tapered Line

Chiang¹,

Chung²

2010

PIER

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Abstract-A power divider with ultra-wideband (UWB) performance has been designed. The quarter-wave transformer in the conventional Wilkinson power divider is replaced by an exponentially tapered microstrip line. Since the tapered line provides a consistent impedance transformation across all frequencies, very low amplitude ripple of 0.2 dB peak-to-peak in the transmission coefficient and superior input return loss better than 15 dB are achieved over an ultra-wide bandwidth. Two additional resistors are added along the tapered line to improve the output return loss and isolation. Simulation performed using CST Microwave Studio and measured results confirm the good performance of the proposed circuit. The return loss and the isolation between the output ports are better than 15 dB across the band 2-10.2 GHz. Standard off-the-shelf resistance values can be selected by optimizing the physical locations to mount the resistors. Better performance can be achieved with more isolation resistors added. Hence, the number of isolation resistors to be used may be selected based on the desired bandwidth and level of isolation and return loss specifications.

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New technique for the design of ultra-broadband power dividers based on tapered lines

Cited by 15 publications

References 4 publications

A broadband half mode substrate integrated waveguide balun using composite right/left‐handed transmission line

A broadband half mode substrate integrated waveguide balun using composite right/left‐handed transmission line

Two-Way Modified Wilkinson Power Divider for Uwb Applications Using Two Sections of Unequal Electrical Lengths

Ultra Wideband Power Divider Using Tapered Line

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