A 1.75 GHz highly-integrated narrow-band CMOS transmitter with harmonic-rejection mixers

Weldon, Jeffrey A.; Rudell, Jacques C.; Li, Lin; Narayanaswami, Ranga; Otsuka, M.; Dedieu, S.; Tee, Luns; Tsai, King-Chun; Lee, Cheol-Woong; Gray, P.R.

doi:10.1109/isscc.2001.912586

Cited by 74 publications

(109 citation statements)

References 1 publication

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“…Since a conventional harmonic rejection mixer (HRM) [6] can suppress the 3 rd , 5 th , 11 th , and 13 th harmonics, this RF tracking filter is designed to reject the 7 th and 9 th harmonics. The inherent transmission zero of the Sallen-Key structure is beneficial for steep skirt characteristic at around 7 th harmonic frequency.…”

Section: Circuit Design and Resultsmentioning

confidence: 99%

A CMOS RF tunable filter for TV white space transmitter applications

Kim

Shin

2011

IEICE Electron. Express

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A UHF-band RF tunable filter is developed for TV white space CMOS transmitter applications. It is based on the combined Sallen-Key and LC notch structure. The inherent transmission zero of the Sallen-Key core is carefully chosen to suppress the 7 th -harmonic component of the transmitter output, and the LC notch filter is set to suppress the 9 th -harmonic component. The filter is built in 0.18-μm CMOS process and consumes 6.2-mA from a 1.8-V supply. The filter's cutoff frequency is tuned from 100-MHz to 500-MHz in five steps. It is successfully adopted in a TV white space CMOS transmitter integrated circuit. Keywords: RF tunable filter, Sallen-Key filter, harmonic rejection filter Classification: Integrated circuits References[1] "Second report and order and memorandum opinion and order: Unlicensed operation in the TV broadcast bands," FCC, Washington, DC, FCC ET Docket 04-186, Nov. 2008.

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Section: Circuit Design and Resultsmentioning

confidence: 99%

A CMOS RF tunable filter for TV white space transmitter applications

Kim

Shin

2011

IEICE Electron. Express

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“…This {31:54} ratio is close to 3 with a 0.57% amplitude error. However, it is not easy to implement these high integer numbers with good matching and low power consumption in 1-stage harmonic mixing particularly when transconductance (g m ) scaling [2] is used. The similar issue exists in 8-phase HRMs as well and has been overcome by 2-stage harmonic mixing [5].…”

Section: Design Considerationmentioning

confidence: 99%

“…In order to suppress the unwanted harmonic mixing, various HR techniques have been introduced [1][2][3][4]; however, HR ratios are degraded due to the amplitude and phase errors that result from device mismatch [2]. In order to reduce the sensitivity of the HR to mismatch, 2-stage HR techniques [5], [6] have been presented.…”

Section: Introductionmentioning

confidence: 99%

Design of 12-phase, 2-stage Harmonic Rejection Mixer for TV Tuners

Lee¹,

Jeong²,

Lee

2016

RADIOENGINEERING

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“…To reduce the circuit scale and the power consumption, a digitally controllable RF circuit technique is demonstrated [3]. In addition, a harmonic suppression using the multi voltage step signal generation has been proposed [4,5]. And we also suggested the time-to-analog conversion (TAC) technique for RF signal generation using the time domain resolution instead of the voltage domain resolution [6].…”

Section: Introductionmentioning

confidence: 99%

RF signal generator using time domain harmonic suppression technique in 90nm CMOS

Nakano

Amakawa

Ishihara

et al. 2012

IEICE Electron. Express

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This paper proposes an RF signal generator using a time domain harmonic suppression technique based on Fourier series analysis. The circuit consists of four differential ring voltage control oscillators (VCO's) with phase differences and the pulse signal summing circuit. By summing pulse signals from VCO's with appropriate phase differences determined by Fourier series in time domain, the third and fifth harmonics can be cancelled without filters. To confirm the validity, a prototypal RF signal generator was fabricated in 90-nm CMOS technology. As a result, we succeeded in generating an RF signal from digital pulse signals. The frequency range is from 1.1 to 3.7 GHz with 1-V power supply. The suppression of both the third and fifth harmonics are below −48 dBc at 1.1 GHz and −42 dBc at 3.7 GHz.

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A 1.75 GHz highly-integrated narrow-band CMOS transmitter with harmonic-rejection mixers

Cited by 74 publications

References 1 publication

A CMOS RF tunable filter for TV white space transmitter applications

A CMOS RF tunable filter for TV white space transmitter applications

Design of 12-phase, 2-stage Harmonic Rejection Mixer for TV Tuners

RF signal generator using time domain harmonic suppression technique in 90nm CMOS

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