Fully Printed Dual-Band Power Divider Miniaturized by CRLH Phase-Shift Lines

Eom, Dajeong; Kahng, Sungtek

doi:10.4218/etrij.13.0212.0131

Cited by 21 publications

(16 citation statements)

References 9 publications

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“…This phase‐shifter is implemented by the following CRLH‐TL structure. The mathematical approaches for the CRLH phase shifters are found in . In , the concept and implementation of CRLH‐TL as one dimensional structures that is, multistage phase‐shift lines and three‐dimensional, four stage and eight stage structures are synthesized for negative permittivity and permeability.…”

Section: Compact Crlh Phase‐shiftermentioning

confidence: 99%

Novel and compact open-ended CRLH-TL notch filter

Khattak

Kahng

2016

Int J RF and Microwave Comp Aid Eng

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A novel and very small metamaterial notch filter below 900 MHz is proposed in this paper. In the UHF band, compared to the size of the open-ended quarter-wavelength stub that is, 0.25 k g (42 mm), the length of the proposed filter is 0.07 k g (12 mm) approximately five times smaller. The notch filter is realized by a very short 908-phase shifter of the CRLH structure with one-end open-terminated. The design method is explained theoretically, while the circuit and geometry are simulated and validated through EM simulations and fabrication. The measured results show a high degree of agreement with the simulated results. The results illustrate the notch created at 900 MHz by the filter to avoid the conflict with Z-wave communication, UHF RFID tag and uplink of GSM-E. V C 2016 Wiley Periodicals, Inc. Int J RF and Microwave CAE 26:247-253, 2016.

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Section: Compact Crlh Phase‐shiftermentioning

confidence: 99%

Novel and compact open-ended CRLH-TL notch filter

Khattak

Kahng

2016

Int J RF and Microwave Comp Aid Eng

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“…Fig 2(a) is used to create phase Φ 1 for a lower frequency f 1 and phase Φ 2 for a higher frequency f 2 , where the ratio of f 2 to f 1 is arbitrary due to the occurrence of the non-linear dispersion curve. These phases and frequencies yield simultaneous equations containing the circuit elements, and mathematical manipulation renders L's and C 's as given in the equations [16]. (1) where ω 1 = 2πf 1 and ω 2 = 2πf 2 , and Z c becomes Z k1 for one path and Z k2 for another path in an unequal power divider.…”

Section: ⅱ the Proposed Circuit Configuration And Design Of Elementamentioning

confidence: 99%

“…4 and 5 are physically implemented by following the steps of [16] to consider full-printing, and the input of the equal block is fed by the output of the 103-Ω path of the unequal dual-band power divider. Fig.…”

Section: ⅲ Three-way Dual-band Power Divider By Combining the Two Blmentioning

confidence: 99%

“…A novel three-way dual-band CRLH power divider is designed to have a very small footprint and the equal power division and in-phase outputs. Differing from [16], a CRLH and short three-way dual-band power dividing structure is presented that provides a dual-band phase-error correction line. The solution process starts from the separate implementation of the 2:1 unequal and 1:1 equal power dividing blocks that are fully printed and metamaterials.…”

Section: ⅰ Introductionmentioning

confidence: 99%

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Compact Dual-Band Three-Way Metamaterial Power-Divider with a Hybrid CRLH Phase-Shift Line

Jang¹,

Kahng²,

Jeon³

et al. 2014

Journal of electromagnetic engineering and science

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A compact dual-band three-way metamaterial power divider is proposed that has three in-phase outputs. Fully printed composite rightand left-handed (CRLH) unequal and equal power dividers are first implemented for 900-MHz and 2.4-GHz bands with the power-division ratios of 2:1 and 1:1, respectively. An initial 1:1:1 power divider is then achieved by incorporating the input of the two-way equal block into an output of the unequal block, and trimming the interconnection parameters. The condition of an identical phase at the three outputs of the power divider is then met by devising a hybrid CRLH phase-shift line to compensate for the different phase errors at the two frequencies. This scheme is confirmed by predicting the performance of the power divider with circuit analysis and full-wave simulation and measuring the fabricated prototype. They results show agreement; the in-phase outputs as well as the desirable power-division are accomplished and outdo the conventional techniques.

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“…While the filter performance gets improved, it is expected that the growth of its physical size needs to be suppressed. As the effective means to design compact RF components, the CRLH lines and ZOR of lumped elements were suggested by Caloz et al in [7], the no-phase variation phenomenon as β=0 and non-linear dispersion relation have been used to design sub-wavelength resonators and compact filters [8][9][10][11][12][13]. The CRLH ZOR filters in [8,10] and ENZ filter [9] show improvement in reducing the sizes as well as insertion loss.…”

Section: Introductionmentioning

confidence: 99%