Analysis and Design of a GaAs Monolithic Tunable Polyphase Filter in S/C Bands

Leggieri, Alberto; Passi, Davide; Gagliesi, Daniele; Paolo, Franco Di

doi:10.1590/2179-10742015v14i1423

Cited by 3 publications

(2 citation statements)

References 15 publications

(19 reference statements)

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“…The phase difference between each port is 90°. The main purpose of this architecture is to generate four (4) quadrature signals that are required in image reject receiver or SSB modulators [20]. These receivers have the ability to pre-select and reject the image frequencies.…”

Section: Polyphase Filtermentioning

confidence: 99%

Quadrature broadband phase shift generation using passive RC polyphase filter for RF front-end

Dutkiewicz

Huang

Nguyen

et al. 2016

2016 16th International Symposium on Communications and Information Technologies (ISCIT)

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This paper reviews the state of art of a polyphase complex filter for RF front-end low-IF transceivers applications. We then propose a multi-stage polyphase filter design to generate a quadrature I/Q signal to achieve a wideband precision quadrature phase shift with a constant 90 ° phase difference for self-interference cancellation circuit for full duplex radio. The number of the stages determines the bandwidth requirement of the channel. An increase of 87% in bandwidth is attained when our design is implemented in multi-stage from 2 to an extended 6 stages. A 4-stage polyphase filter achieves 2.3 GHz bandwidth.

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Section: Polyphase Filtermentioning

confidence: 99%

Quadrature broadband phase shift generation using passive RC polyphase filter for RF front-end

Dutkiewicz

Huang

Nguyen

et al. 2016

2016 16th International Symposium on Communications and Information Technologies (ISCIT)

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show abstract

“…However, multi-functional components may suffer from a large size and big design complexity. Tunable components, such as tunable filters [1][2][3][4], and function-merged components, such as filtering power dividers [5,6], are effective to moderate the problems mentioned above. Tunable filters can achieve tunable passbands [1,2], stopbands [3] or multi-functional performance [4], and filtering power dividers can be realized by embedding resonators into the power division arms [5,6].…”

Section: Introductionmentioning

confidence: 99%

An Electronically Tunable Dual-Band Filtering Power Divider With Tuning Diodes Sharing Technique

Jiang¹,

Lin²,

Tang³

et al. 2018

PIER M

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Abstract-This paper presents an electronically tunable dual-band filtering power divider (TDFPD) with tuning diodes sharing technique. Two dual-mode tunable resonators (DMTRs) are embedded into a conventional power divider to achieve dual-band tunable bandpass filtering response. The two bands of the proposed TDFPD can be tuned independently. Tuning diodes sharing technique is utilized to reduce the number of tunable diodes. A prototype has been designed and fabricated to validate the proposed design as shown by the good agreement between the measured and simulated results. The measurement shows that the center frequencies of the lower and upper bands can be independently tuned from 1.31 to 1.62 GHz and 2.92 to 3.30 GHz, respectively. Within the passbands, isolation between the two output ports is higher than 16 dB with small phase and magnitude imbalance.

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Quadrature differential output six‐port rat‐race coupler

Harada

Hayashi

2021

Electronics Letters

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This letter describes a design method for a six-port rat race circuit to obtain quadrature differential waveforms from a single end. The proposed six-port rat-race coupler succeeded in low insertion loss and wide bandwidth by using a 1/2 wavelength transmission line and an open stub. Over the frequency range from 0.89 to 1.05 GHz, a prototype 0.96-GHz-band six-port rat-race coupler was confirmed to have a transmission loss of 7.03 ± 0.45 dB, a reflection loss and isolation of 15 dB or more, and a phase error of within ± 3.3 • .

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Analysis and Design of a GaAs Monolithic Tunable Polyphase Filter in S/C Bands

Cited by 3 publications

References 15 publications

Quadrature broadband phase shift generation using passive RC polyphase filter for RF front-end

Quadrature broadband phase shift generation using passive RC polyphase filter for RF front-end

An Electronically Tunable Dual-Band Filtering Power Divider With Tuning Diodes Sharing Technique

Quadrature differential output six‐port rat‐race coupler

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