A 450 MHz CMOS RF power detector

Ho, Stacy

doi:10.1109/rfic.2001.935677

Cited by 14 publications

(5 citation statements)

References 5 publications

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“…The diode detector [4]- [6] can respond to high frequency. The logarithmic amplifier [7]- [10] is the most commonly used in the integrated power measurement device and has wide dynamic range. …”

Section: Introductionmentioning

confidence: 99%

Linear radio frequency power detector

Shieh

Lai

et al. 2009

2009 Asia Pacific Microwave Conference

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In this paper, a design for high dynamic range applicable of power detector by using successive detection logarithmic amplifier (SDLA) configuration consists of PMOS load limiting amplifier and unbalanced sourcecoupled pairs. This device was been fabricated by TSMC 0.18-μm 1P6M CMOS process. The experimental results show that the dynamic range of the power detector the frequency 900-MHz is almost kept at 39-dB and for frequency 1800-MHz, the dynamic range is 29-dB. Its logerror is kept at ±1-dB and consumes is 16-mW from a 1.8-V supply.Index Terms-successive detection logarithmic amplifier, SDLA, power detector, power control, limiting amplifier, unbalanced source-coupled pairs

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Section: Introductionmentioning

confidence: 99%

Linear radio frequency power detector

Shieh

Lai

et al. 2009

2009 Asia Pacific Microwave Conference

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“…Nevertheless, the limited bandwidth of the -converter narrows down the bandwidth of the translinear power detector in an ultra-wideband (UWB) application [4], [11], [12]. Besides the above methods, CMOS power detectors have been reported in recent years [14]- [16]. In one type of CMOS power detector, the RF logarithmic amplifier is applied to detect RF power and generate the linear-in-decibel output [14], which cascades multistage limiting amplifiers and rectifies the RF signal.…”

Section: Introductionmentioning

confidence: 99%

“…Besides the above methods, CMOS power detectors have been reported in recent years [14]- [16]. In one type of CMOS power detector, the RF logarithmic amplifier is applied to detect RF power and generate the linear-in-decibel output [14], which cascades multistage limiting amplifiers and rectifies the RF signal. The bandwidth of the limiting amplifier limits the frequency range of the power detector.…”

Section: Introductionmentioning

confidence: 99%

A Low-Power Ultra-Wideband CMOS True RMS Power Detector

Zhou

Chia

2008

IEEE Trans. Microwave Theory Techn.

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This paper introduces a low-power ultra-wideband true root-mean-square power detector with a 0.13-m CMOS process operating from 125 MHz to 8.5 GHz. The detector utilizes the MOS transistor's square-law characteristic in the strong inversion region to obtain the power information of the input RF signal, and its exponential characteristic in the weak inversion region to realize the linear-in-decibel output. Measured dynamic ranges are 20 dB at 125 MHz and 18 dB at 8.5 GHz, respectively, with tolerances of 0.5-dB error. WiMedia-Ultrawideband and wireless local area network 802.11a signals with different modulation techniques and data rates are measured. The integrated detector operates at 1.2-V supply voltage, and its static power consumption is 0.18 mW.Index Terms-CMOS, crest factor, linear-in-decibel, low power, orthogonal frequency division multiplexing (OFDM), peak-to-average rate, power detector, RF, root mean square (rms), ultra-wideband (UWB), WiMAX, wireless local area network (WLAN).

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“…Current rectification has a good linearity but it is not suitable for very high frequency input signals [1]. PWL (Piece Wise Linear) detectors are used to measure signal amplitudes over a wide dynamic range [2][3] [4], where schemes are also available to compensate for temperatures [3], but they have not been used for 2.4GHz and above. RMS or true power detector mentioned in [5] using logarithmic amplifier can not be integrated and difficult to be used for low power application.…”

Section: Architecturesmentioning

confidence: 99%

An integrated linear RF power detector

Kulhalli

Seth

2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512)

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An integrated RF power detector used in wireless communication is presented. The detector uses a unique replica circuitry to compensate for any changes in process or temperature. This results in a high degree of accuracy and a higher dynamic range. The detector has more than 25dB of dynamic range within +/-0.5dB accuracy and is placed in the die along with the power amplifier in a BiCMOS process. The detector runs upto 7GHz in simulation, though it is tested at 2.4GHz here. It runs of a 3V supply and consumes less than 5mA.

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A 450 MHz CMOS RF power detector

Cited by 14 publications

References 5 publications

Linear radio frequency power detector

Linear radio frequency power detector

A Low-Power Ultra-Wideband CMOS True RMS Power Detector

An integrated linear RF power detector

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