Circuit Design for Wireless Communications: Improved by Kong-Pang Pun, José Epifanio da Franca, Carlos Azeredo-Leme
By Kong-Pang Pun, José Epifanio da Franca, Carlos Azeredo-Leme
Circuit layout for instant Communications: more suitable innovations for snapshot Rejection in Wideband Quadrature Receivers is the 1st booklet targeting the topic of snapshot rejection in instant receiver layout, which hasn't ever been so vital as excessive point of integration is very demanded within the present and subsequent new release cellular terminals.
In this e-book, the picture rejection difficulties in quite a few receiver architectures that are appropriate for prime point of integration, together with image-reject, direct conversion and coffee IF architectures, are studied. the elemental resource of the difficulty of the picture rejection in those receivers is the imbalance among their in-phase (I) and quadrature (Q) channels, which turns into extra problematical while the receivers are of wideband. along with conventional equipment, this ebook offers novel suggestions to the matter, which falls into extensive varieties. the 1st kind refers to new circuits that produce much less I/Q imbalance. This comprises excessive functionality switched-capacitor Hilbert transformers and unique quadrature sampling circuits. the second one sort is to compensate the I/Q imbalance, that is in all likelihood frequency-dependent, in electronic area by means of calibration or sign processing ideas. layout examples were integrated.
Circuit layout for instant Communications: more desirable concepts for photo Rejection in Wideband Quadrature Receivers serves as a really priceless reference for instant layout engineers who are looking to enhance the picture rejection in their instant receivers and researchers and scholars who're attracted to this topic.
Read or Download Circuit Design for Wireless Communications: Improved Techniques for Image Rejection in Wideband Quadrature Receivers PDF
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Additional info for Circuit Design for Wireless Communications: Improved Techniques for Image Rejection in Wideband Quadrature Receivers
It is for these reasons that this architecture has become a topic of active research presently [32, 33, 34, 35, 36, 37, 38, 39, 40, 41]. 11: A zero-IF receiver with quadrature outputs. 1 Historically, "homodyne" was restricted to the case that the local oscillator is synchronised in phase with the incoming carrier signa!. 24 Wireless Receivers: Architectures and Image Rejection But, it has also significant drawbacks, The most important one is the DC offset produced by self-mixing of LO and interferers [3, 42], which often var ies with time.
2000, pp. 340-341.  A. Montalvo, A. Holden, W. , "A 22mW NADC receiver IF chip with integrated second IF channel filtering," in Digest of Technical Papers, IEEE Int. Solid-State Circuit Conference, 1999, pp. 222-223. REFERENCES 37  J. Crols and M. 5GHz highly linear CMOS down conversion mixer," IEEE J. Solid-State Circuits, voI. 30, no. 7, pp. 736-742, July 1995.  J. Crols and M. Steyaert, "An analog integrated polyphase filter for a high performance low-if receivers," in Proc. VLSI Circuits Symposium, Kyoto, June 1995, pp.
3, pp. 344-358, Mar. 1998. 36 Wireless Receivers: Architectures and Image Rejection  S. Brett and G. Stanton, "A direct conversion L-band tuner for digital DBS," in Digest of Technical Papers, IEEE Int. Solid-State Circuit Conference, 1998, pp. 126-127.  J. toh, M. Nishitsuji, O. Ishikawa, and D. 1 GHz directconversion GaAs quadrature modulator IC for W-CDMA base station," in Digest of Technical Papers, IEEE Int. Solid-State Circuit Conference, 1999, pp. 226-227.  A. P arssinen, J. Jussila, J.