Design of Compact Wilkinson Power Divider with Harmonic Suppression using T-Shaped Resonators

Siahkamari, Hesam; Yasoubi, Zahra; Jahanbakhshi, Maryam; Mousavi, Seyed Mohammad Hadi; Siahkamari, Payam; Nouri, Mohammad Ehsan; Azami, Sajad; Azadi, Rasoul

doi:10.1515/freq-2016-0219

Cited by 12 publications

(6 citation statements)

References 8 publications

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“…[6]. In another research, 7 a Wilkinson power divider was proposed using two identical resonators. This circuit not only does reduce the power dovd=ider size by approximately half, but it also achieves 20 dB isolation.…”

Section: Introductionmentioning

confidence: 99%

Design and fabrication of a miniaturized Gysel power divider using improved T‐shaped resonator

Pahlavani

Moradkhani

Sayadi

2022

Micro & Optical Tech Letters

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A high-performance Gysel power divider showcasing high suppression factor and low insertion loss at 540 MHz has been designed, investigated, and fabricated in this paper. The proposed Gysel power divider is made up of replacing six identical resonators with conventional transmission lines. The proposed resonators, which have been analyzed using LC equivalent circuit analysis, are designed to have a small size, low insertion loss, wide stopband, and narrow transition band. The final tested results have indicated that the suggested power divider is able to suppress nine harmonics; moreover, it has only an insertion loss of 0.4 dB. Another positive feature of the power divider is its small size in comparison with a conventional power divider at this operating frequency, where it occupies 34.5 × 63.8 mm 2 equaling to 0.188 × 0.102 λ g 2 , where λ g is the wavelength guide at 540 MHz. This figure is 25% of a conventional Gysel, considered as a remarkable point.

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Section: Introductionmentioning

confidence: 99%

Design and fabrication of a miniaturized Gysel power divider using improved T‐shaped resonator

Pahlavani

Moradkhani

Sayadi

2022

Micro & Optical Tech Letters

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“…The compactness of any power dividers primarily depends upon the length of the quarter‐wave transmission line used in power divider architecture. Various techniques have been used in literature to design the compact, high‐performance power divider 7–16 . Capacitive loading has been used to decrease the overall size of the power divider 7 .…”

Section: Introductionmentioning

confidence: 99%

“…Suppression up to 6th harmonics with a decrease of 57.5% in size has been reported 12 . Resonators have been used to design a reduced size power divider 13,14 . Four‐series delta‐stub and folded stepped impedance transmission line (FSITL) technique has been used to develop a compact power divider (84% reduction) 15 .…”

Section: Introductionmentioning

confidence: 99%

Ultra‐miniaturised C ‐band power divider using capacitive loading and defect grounded structures

Narang

Shrivastava

Kumar

et al. 2022

Int J RF Mic Comp-Aid Eng

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This article reports a compact Power Divider design employing a combination of a capacitive load and Defect Grounded Structures (DGS) on GaAs substrate for MMIC technology in the C band. The integration of these two techniques offers a compact power divider with a decrease in quarter-wave transmission line length from λ/4 to λ/16 and harmonic suppression up to 50 GHz. Capacitive loading reduces the size, and DGS improves harmonic suppression and further decreases the size of the structure. The designed power divider is simulated in Ansys HFSS 19.2 and provides a return loss of 25.66 dB, with an insertion loss of 3.01 dB at 5.4 GHz and isolation of 13.37 dB. Isolation is further improved to 30.89 dB using a parallel combination of resistor and capacitor in the isolation network. The prototype of the proposed circuit has been fabricated using RT/duroid ® 5880 as substrate. Measurement results show insertion loss and return loss of 3.02 and 23.46 dB. Isolation of 22.43 dB was achieved. The proposed design provides a size reduction of 73.7% with harmonic suppression up to 10th harmonics by 10 dB, making it suitable for high-performance monolithic microwave integrated circuits (MMIC).

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“…T-shaped resonators in conjunction with U-shaped resonators also could achieve harmonics suppression. 12 However, a critical problem exists that the GPD is not a symmetry structure. Structure symmetry in microwave engineering can simplify the design greatly.…”

Section: Introductionmentioning

confidence: 99%

A novel quasi symmetrical design of the three‐way Gysel power divider using ideal phase inverters

Zhang

Yang

Liao

et al. 2020

Int J RF Microw Comput Aided Eng

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A novel quasi symmetrical three‐way Gysel power divider with frequency‐independent isolation and impedance matching is proposed. Equal magnitudes of the reflection coefficients for the input and the output ports of the three‐way divider can be obtained despite the asymmetrical structure and the different terminal impedances. The divider is analyzed in terms of its equivalent four‐port network. Quasi symmetrical property (|S11| = |Sii|, i = 2‐4) is proved which means the input port (port. 1) will automatch when the output ports are matched. Closed‐form equations are derived for the design. For verification, based on the microstrip/slotline PI, two examples, which include a three‐way Gysel PD with port impedances (50, 50, 50, 50) Ω, and an ultra‐wideband three way Gysel PD with port impedances (50, 100, 100, 100) Ω with the center frequency of 4 GHZ are designed, fabricated, and measured respectively. The measured results are in great agreement with the simulated ones.

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Design of Compact Wilkinson Power Divider with Harmonic Suppression using T-Shaped Resonators

Cited by 12 publications

References 8 publications

Design and fabrication of a miniaturized Gysel power divider using improved T‐shaped resonator

Design and fabrication of a miniaturized Gysel power divider using improved T‐shaped resonator

Ultra‐miniaturised C ‐band power divider using capacitive loading and defect grounded structures

A novel quasi symmetrical design of the three‐way Gysel power divider using ideal phase inverters

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