An original topology of dual-band filter with transmission zeros

Quendo, Cédric; Rius, Éric; Person, Christian

doi:10.1109/mwsym.2003.1212559

Cited by 143 publications

(109 citation statements)

References 5 publications

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“…Dual-band bandpass filters have gained great attention in wireless communication systems recently [5][6][7][8][9][10]. The initial type of dualband filter is simply designed by connecting two filter circuits with two different passbands [5].…”

Section: Introductionmentioning

confidence: 99%

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Design of Cross-Coupled Dual-Band Filter With Equal-Length Split-Ring Resonators

Fan¹,

Liang²,

Dai³

2007

PIER

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Abstract-A compact dual-band bandpass filter using equal-length split-ring resonators (SRRs) is proposed in this paper. The tworesonance frequency response of equal-length split-ring resonator is described in detail. A cross-coupled dual-band filter with four equallength split-ring resonators is designed. Several finite out-of-band attenuation poles are realized to improve the selectivity of the proposed filter. The measurement of the filter is in good agreement with the simulation.

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Section: Introductionmentioning

confidence: 99%

“…But this solution suffers from high insertion loss and large overall size. In [6] and [7], making use of the basic topology of a stopband filter, a uniform transmission line is interrupted with multiple shunt stubs to generate dual passbands. However, these solutions increase component amount, circuit size, and power consumption.…”

Section: Introductionmentioning

confidence: 99%

Design of Cross-Coupled Dual-Band Filter With Equal-Length Split-Ring Resonators

Fan¹,

Liang²,

Dai³

2007

PIER

View full text Add to dashboard Cite

show abstract

“…In [2] and [3] the second resonating mode of quarter-or half-wave resonators was designed to resonate at the second passband of the dual-band filter. In [4] a dual-band filter achieves its two bands with the aid of three open-circuited stubs for band separation. Commonly these design techniques are limited to relatively narrow bandwidths.…”

Section: Introductionmentioning

confidence: 99%

Miniature dual-band filters using integrated bandpass and bandstop filters for wide bandwidths

Liu

Dou

2009

IEICE Electron. Express

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This paper presents a novel microstrip dual-band filter in which a shunt-stub bandpass filter and an open-stub bandstop filter are integrated into a single structure of short length. The bandstop filter is centered within the passband of the bandpass filter, resulting in a filter having dual passbands. Good return loss is obtained using an optimization routine. This method is suitable for designing dualband filters having wide bandwidths. Good agreement between theory and measurements in respect of low insertion loss and high isolation is demonstrated. Keywords: dual-band filter; open-stub bandstop filter; shunt-stub bandpass filter; wide bandwidth Classification: Microwave and millimeter wave devices, circuits, and systems References[1] H. Miyake, S. Kitazawa, T. Ishizaki, T. Yamada, and Y. Nagatom, "A miniaturized monolithic dual band filter using ceramic lamination technique for dual mode portable telephones," IEEE MTT-S Int.

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“…Dual-band bandpass filters have gained great attention in wireless communication systems recently [1][2][3][4][5]. The traditional design methods of dual-band filters are realized by connecting two filter circuits with two different passbands [1] or making use of the basic topology of a stopband filter [2,9].…”

Section: Introductionmentioning

confidence: 99%

“…The traditional design methods of dual-band filters are realized by connecting two filter circuits with two different passbands [1] or making use of the basic topology of a stopband filter [2,9]. However, these solutions suffer from high insertion loss and large overall size.…”

Section: Introductionmentioning

confidence: 99%

Design of Miniature Planar Dual-Band Filter With 0â° Feed Structures

Xue¹,

Chen²,

Dai³

et al. 2007

PIER

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Abstract-A novel dual-band planar filter is proposed in this paper. It is shown that the two transmission bands can be excited and designed using proposed resonators which combine different sizes of open-loop resonators. The main resonators control the low-band resonant frequency and the sub resonators control the high-band resonant frequency. With 0 • feed structures added, the frequency selectivity of the filter is greatly improved. And the proposed filter also has advantages as low insertion loss and miniature size. The measurement of the filter is in good agreement with the simulation.

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An original topology of dual-band filter with transmission zeros

Cited by 143 publications

References 5 publications

Design of Cross-Coupled Dual-Band Filter With Equal-Length Split-Ring Resonators

Design of Cross-Coupled Dual-Band Filter With Equal-Length Split-Ring Resonators

Miniature dual-band filters using integrated bandpass and bandstop filters for wide bandwidths

Design of Miniature Planar Dual-Band Filter With 0â° Feed Structures

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