Amplitude comparator for self-calibration circuit of IR mixer

• Autorzy: Szymański, A. , Kurjata-Pfitzner, E.
• Języki publikacji: EN

Abstrakty

EN

This paper presents a new sequential amplitude comparator of two sinusoidal signals. It was designed for calibration circuit of phase shifters leading to better suppression of image component in the signal path of 2.4 GHz receiver. The experimentally obtained values of IRR above 45dB after calibration process indicate that image signal rejection is very good. It enables to conclude that the conception and design of amplitude comparator is suitable. The design was performed using SiGe 0,35nm BiCMOS process.

Słowa kluczowe

PL

kalibracja; autokalibracja; komparator; promieniowanie podczerwone; mieszacz IR

EN

amplitude comparator; self-calibration of IR mixer; image rejection

• Czasopismo: Electronics and Telecommunications Quarterly
• Rocznik: 2008
• Tom: Vol. 54, No 4
• Strony: 469-482
• Opis fizyczny: Bibliogr. 5 poz., wykr.

Twórcy

autor

Szymański, A.

autor

Kurjata-Pfitzner, E.

• Department of Integrated Circuits and Systems, Institue of Electron Technology, Al. Lotnikow 32/46, Warszawa, Poland,

Bibliografia

• 1. B. Razavi: RF Microelectronics, Prentice Hall PTR.
• 2. H. Darabi, et al.: A 2.4-GHz CMOS Transceiver for Bluetooth, IEEE J. of Solid-State Circuits, Vol. 36, 2001, pp. 2016-2024.
• 3. H. Darabi, et al.: A Dual-Mode 802.11b/Bluetooth Radio in 0.35mm CMOS, IEEE J.of Solid-State Circuits, Vol. 40, 2005, pp. 698-705.
• 4. T. Das, et al.: Self-Calibration of Input-Match in RF Front-End Circuitry, IEEE Trans. On Cir. & Syst. II, Vol. 52, 2005, pp. 821-825.
• 5. A. Szymański, et al.: The self-calibration method of IR mixer with low IF, Analog Int. Cir. & Signal Proc, vol. 55, nr 2, 2008, pp.115-124.