Compact Filtering Phase Shifter With Simple Structure

Shi, Jin; Nie, Yi; Ping, Han; Zhang, Wei; Cao, Qinghua

doi:10.1109/lmwc.2021.3105563

Cited by 15 publications

(14 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…So far, a few technologies to realize wideband filtering phase shifters have been published. [22][23][24][25][26][27][28][29][30][31][32] In Ref. 22, wideband phase shifter with harmonic suppression was firstly proposed by combining bandstop stubs in wide phaseshifting elements.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, several methods are proposed to achieve common-mode suppression, 26 multiple transmission zeros, 27 dual-band operation, 28,29 and smaller circuit size. 30 In the view of implementation, the existing wideband filtering phase shifters are all designed based on the transmission line theory, and are composed of multiple coupled-lines and transmission lines. For the industrial applications, there are still some issues should be resolved in further the study.…”

Section: Introductionmentioning

confidence: 99%

“…1. Bulky circuit size: Considering current industrial wireless communication systems mainly operating at L-and S-band, the quarter-/half-wavelength coupledlines and transmission lines at the at the center frequency make existing wideband filtering phase shifters occupy quite large circuit size, [22][23][24][25][26][27][28][29][30][31][32] such as 0.84 λ g Â 0.60 λ g, 25 0.65 λ g Â 0.24 λ g, 27 and 0.70 λ g Â 0.10 λ g 30 (λ g : guided wavelength at the center frequency f 0 ). 2.…”

Section: Introductionmentioning

confidence: 99%

“…So far, a few technologies to realize wideband filtering phase shifters have been published 22–32 . In Ref.…”

Section: Introductionmentioning

confidence: 99%

“…In order to attain specified filtering function flexibly, coupled multiple single‐mode resonators 23 and multimode resonator 24,25 have been introduced to design wideband filtering phase shifter. In addition, several methods are proposed to achieve common‐mode suppression, 26 multiple transmission zeros, 27 dual‐band operation, 28,29 and smaller circuit size 30 . In the view of implementation, the existing wideband filtering phase shifters are all designed based on the transmission line theory, and are composed of multiple coupled‐lines and transmission lines.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Theory and design of quasi‐lumped‐element wideband filtering phase shifters

Lyu

Cheng

2022

Int J RF Mic Comp-Aid Eng

View full text Add to dashboard Cite

In this article, a new general and effective design method of miniaturized quasilumped-element wideband filtering phase shifters for integrated RF front-end is proposed, which is promising in both industrial and academic fields. This wideband filtering phase shifter is built by exploring the multiple different kinds of lumped resonators and arranging them in an easily realizable form with stable performance on the single-layer substrate using widely accessible and low-cost PCB processing. In our design, wideband magnitude and phase shift responses with the multiple transmission zeros and small phase deviation are numerically established and obtained. A generalized synthesis method along with theoretical analysis and synthesis curves is proposed to determine its circuit parameters exactly. To verify the proposed design concept and method, two wideband phase shifter prototypes with the different topologies and specifications are implemented and tested. Comparisons of measured and simulated results show good accordance and verify theoretical predictions. These prototypes exhibit attractive features with satisfactory wide bandwidth, high frequency selectivity, small phase deviation, deep and wide stopband, miniaturized size, as well as flexible design freedom, compared to other existing works.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…So far, a few technologies to realize wideband filtering phase shifters have been published 22–32 . In Ref.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Theory and design of quasi‐lumped‐element wideband filtering phase shifters

Lyu

Cheng

2022

Int J RF Mic Comp-Aid Eng

View full text Add to dashboard Cite

show abstract

Design of broadband reconfigurable phase shifters

Ding

Xue

Liu

et al. 2022

Int J RF Mic Comp-Aid Eng

View full text Add to dashboard Cite

In this article, a reconfigurable phase shifter loaded two PIN diodes is presented. Compared with the traditional phase shifters, the proposed phase shifter can achieve two phase shifts in one single phase shifter by controlling the PIN diodes, which make it more superior in the feeding network's application of array antennas. Moreover, this phase shifter can widen the bandwidth, decrease the size and realize a wider phase shift range in a simple structure.For simplifying the process of this design, this article introduces a simply method to design the configurable phase shifter. To confirm the presented design, the proposed phase shifter is fabricated and measured. A good agreement between the measured and simulated results can be observed.

show abstract

Bandwidth‐reconfigurable filtering phase shifters with phase‐slope alignment for different bandwidth states

Shao

Zhu

2023

Micro & Optical Tech Letters

View full text Add to dashboard Cite

In this article, filtering phase shifters with the capability to reconfigure their operating bandwidth are proposed for the first time. The proposed phase shifter is based on a triple‐mode half‐wavelength microstrip‐line resonator with two loaded stubs. The operating bandwidth of proposed phase shifters can be adjusted by changing the frequency ratio (Rf) between the third (fp3) and the first (fp1) resonant frequencies, which can be flexibly controlled by changing the length of loaded stubs. Meanwhile, phase slopes also can be aligned by further studying Rf to achieve low phase errors. For validation, 90° phase filtering phase shifters centered at 2.5 GHz are designed, and measured. Measured results indicate that the fractional bandwidth of this phase shifter can be flexibly tuned from 16% to 36% with good filtering performance. Meanwhile, the phase error and magnitude imbalance of the proposed 90° phase shifters are less than ±5° and 0.3 dB, respectively.

show abstract

Compact Filtering Phase Shifter With Simple Structure

Cited by 15 publications

References 22 publications

Theory and design of quasi‐lumped‐element wideband filtering phase shifters

Theory and design of quasi‐lumped‐element wideband filtering phase shifters

Design of broadband reconfigurable phase shifters

Bandwidth‐reconfigurable filtering phase shifters with phase‐slope alignment for different bandwidth states

Contact Info

Product

Resources

About