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

Dutkiewicz, Eryk; Huang, Xiaojing; Nguyen, Diep N.; Zhu, Forest

doi:10.1109/iscit.2016.7751702

Cited by 6 publications

(4 citation statements)

References 25 publications

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“…Compared with the quadrature hybrid coupler [21], at sub-6GHz frequency the passive RC PPF has advantages of wideband and high quadrature signals generation accuracy with very compact area [22][23][24]. In principle, there are two different types of PPF, namely Type-I and Type-II [23].…”

Section: Ppfmentioning

confidence: 99%

A Ku-band transmitter front-end in 65-nm CMOS with >45-dBc image-rejection ratio and >43-dBc LOFT suppression

Duan

Chen

Wang

et al. 2023

IEICE Electron. Express

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This paper presents a fully integrated Ku-band transmitter frontend with high image rejection ratio (IRR), local oscillator feedthrough (LOFT) suppression, gain and output power for point-to-point (P2P) communication. To avoid the bulky off-chip image-rejection filter, the Hartley transmitter structure is employed, in which frequency plan is undertaken to improve the IRR and LOFT performance, and a two-stage polyphase filter (PPF) and an in/quadrature-phase (I/Q) Gilbert mixer are utilized to improve the IRR further. With the capacitive neutralization and transformer-based series power combining techniques, a two-stage power amplifier (PA) is used to obtain high gain and output power. In the LO buffer, a flexible phase inverting cascode structure is used to achieve reliable upsideband operation, and the inductive peaking technique and cross-coupled transistor pair are employed to promote the LO swing. Fabricated in a 65nm CMOS process, the proposed Ku-band transmitter occupies a chip area of 0.98 mm 2 , and consumes 304-mW power consumption from a 1.2-V supply voltage. With measurements, over 15.8-17.9-GHz radio frequency (RF) bandwidth, the transmitter achieves an IRR and LOFT suppression ratio of 45-55 and 43-52 dBc, respectively. Moreover, it exhibits a conversion gain of 28.5 dB, an output 1-dB compression point (OP1dB) of 13.3 dBm and a saturated output power (Psat) of 16 dBm.

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Section: Ppfmentioning

confidence: 99%

A Ku-band transmitter front-end in 65-nm CMOS with >45-dBc image-rejection ratio and >43-dBc LOFT suppression

Duan

Chen

Wang

et al. 2023

IEICE Electron. Express

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“…In this work, a polyphase filter (PPF)-based quadrature generator is used to generate differential I and Q signals due to its small area requirement. To achieve wideband operation, a two-stage filter has been used [67,68]. These differential I/Q signals are fed to the variable gain amplifiers (VGAs).…”

Section: E-band Receiver For Phased-array Applicationmentioning

confidence: 99%

An E-band Bidirectional PALNA in 0.13 µm SiGe BiCMOS Technology

Ahamed

Varonen

Parveg

et al. 2022

2021 16th European Microwave Integrated Circuits Conference (EuMIC)

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I am very grateful to almighty Allah for giving me this opportunity and strength to finish this research. I wish to express my warmest gratitude to my parents for their endless support throughout my life. I am grateful to my parents-in-law for their good wishes. A lot of thanks to my little princess Aisha for bringing sunshine to my life during this difficult journey. Finally, I would like to thank my lovely wife Mst Tanzina Afrin. Without her support, I would never have been able to finish this work. I would like to dedicate this thesis to my family.

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“…Moreover, it has no frequency division, which simplifies the design of the signal generator [2]. Therefore, the polyphase network has been widely used to generate I/Q signals [3][4][5][6]. As one of the polyphase networks, the PPF has attracted the attention of many researchers due to its advantages in jitter and power performance.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Optimization Design Scheme of CMOS Ultra-Wideband Reconfigurable Polyphase Filters on Mismatch and Voltage Loss

Wang,

Li,

Wang

et al. 2024

Electronics

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This manuscript presents an analysis and optimization scheme for the ultra-wideband passive reconfigurable polyphase filters (PPFs) to minimize I/Q (in-phase and quadrature-phase) phase/amplitude mismatch and voltage loss. By building a mathematical model of the voltage transfer, the relationship between the resonant frequency of each stage and the I/Q mismatch and the relationship between the network impedance and the voltage loss are revealed, providing a scheme for PPF optimization. The proof-of-concept 2~8 GHz wideband reconfigurable PPF is designed in a 55 nm CMOS process. The optimization scheme enables the designed PPF to achieve an I/Q phase mismatch within 0.2439° and an I/Q amplitude mismatch within 0.098 dB throughout the entire band, and it shows great robustness during Monte Carlo sampling. The maximum voltage loss is 17.7 dB, and the total chip area is 0.174 × 0.145 mm2.

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

Cited by 6 publications

References 25 publications

A Ku-band transmitter front-end in 65-nm CMOS with >45-dBc image-rejection ratio and >43-dBc LOFT suppression

A Ku-band transmitter front-end in 65-nm CMOS with >45-dBc image-rejection ratio and >43-dBc LOFT suppression

An E-band Bidirectional PALNA in 0.13 µm SiGe BiCMOS Technology

Analysis and Optimization Design Scheme of CMOS Ultra-Wideband Reconfigurable Polyphase Filters on Mismatch and Voltage Loss

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