Comments on “A new model of generalized inverter and itsapplications”

For the original paper see ibid., vol. 45, no. 1. p. 132-5 (1997). The commenter considers that the generalized impedance inverter described in the aforementioned paper with associated theory is essentially identical to that published by him previously (see ibid., vol. 21, no. 8, p. 519-26, 1973)     

Comments on corrections to “An improved design method ofRotman lens antennas”

For original paper by Katagi, Mano, and Sato see ibid., vol.32, no.5, p.524 (1984). Corrections to this paper were suggested by Leonakis (see ibid., vol.34, no.8, p.1067, 1986) and by Singhal and Sharma (see ibid., vol.42, no.7, p.1037, 1994). Katagi et al. here comment on the corrections to their paper. Singhal and Sharma reply to the comments     

Comment on “Digital signature with (t, n) shared verificationbased on discrete logarithms”

For the original article see ibid., vol. 29, no. 24, p. 2094-95 (1993). The digital signature scheme with (r, n) shared verification proposed by Harn in the aforementioned article can be easily forged universally, as shown by Lee and Chang (see ibid., vol. 31, no. 3, p. 176-7, 1995). In the reply of Harn (see ibid., vol. 31, no. 3, p. 177, 1995), two different solutions to overcome this attack were presented. The commenters discuss the first solution and show that the second solution (and related ones) are flawed, because with a simple attack one can forge this scheme and related ones universally. Finally, they propose a simple solution to countermeasure all attacks     

Comment on “Error rate performance of the projectioncode”

For original paper see ibid., vol.44, p.413-15 (1996 April). The present authors provide counterexamples to the expressions for the minimum Hamming distance of the projection codes in the original paper of Li et al     

Reply to comment on 'Bridge amplifier with feedforward error correction' (by Jardon et al.)

For original paper see ibid., vol.28, no.11, p.1058-9 (1992). For comment see ibid., vol.28, no.23, p.2148-9 (1992). The authors are substantially in agreement with some of the statements in the comment. However, they feel that the commenters have ignored the fact that the amplifier halves produce equal distortions when the halves are identical and the output voltage is symmetrical with respect to ground.<>     

Comments on “A CMOS ratio-independent and gain-insensitivealgorithmic analog-to-digital converter”

For the original paper see ibid., vol. 31, no. 8, p. 1201-1207 (1996). The commenter points out some errors in the aforementioned paper and provides the necessary corrections     

Authors' Reply

For original article see ibid., vol.51, no.3, p.690-6, Mar. 2003. For comments by T. Ohira see ibid., vol.55, no.1, p.185, Jan.2007     

Reply to comments on 'Efficient realisation of alternating projection algorithm for maximum likelihood direction finding'

For the original article see ibid., vol.25, no.20, p.1325-6 (1989) and for comments on the article see ibid., vol.27, no.20, p.1848 (1991). The authors reply to the comments by Zhang and Zhu, pointing out that the commenters have misunderstood the authors' approach. Hence an explanation of their approach is given.<>     

Comments on “Applications of simulated annealing for thedesign of special digital filters”

For original paper see ibid., vol.40, p.323 (1992). Discusses the performance measurement of a discrete coefficient filter which is designed by scaling optimization     

Comments on “Statistical and spatial properties of forestclutter measured with polarimetric synthetic aperture radar”

For original paper see ibid., vol.30, no.3, p.578-88 (1992). Sheen and Johnston have derived a theoretical expression for the intensity autocorrelation function of a synthetic aperture radar (SAR) image based on the product model for SAR clutter. This derivation is valid under the assumption that the instrument function width is narrow relative to the width of the texture autocorrelation function. This communication draws attention to a more general derivation of the intensity autocorrelation function, given by Oliver, which does not require this assumption     

Authors' reply [to comments on "Effect of system imperfections on BER performance of a CDMA receiver with multipath diversity combining"]

For original paper see Panicker, J. and Kumar, S., ibid., vol.45, p.622-30 (1996). For comments see Xie, J. et al., ibid., p.1414-15. In our original paper, a direct-sequence code-division multiple-access (DS-CDMA) system with imperfections in power control, channel parameters, and spreading code-phase estimation was analyzed. Xie, J. et al. noted three errors and omissions in the paper. Our responses to each of the three cases are provided.     

Comments on “17.3% efficiency metal-oxide-semiconductor (MOS)solar cells with liquid-phase-deposited silicon dioxide”

For original paper see ibid., vol. 18, p. 565-7 (1997). The above paper does not comply with international standards regarding the measurement of solar cell-efficiencies in a number of points. These are outlined. The authors' reply to the comments is included     

Comment on “Low power radio frequency ICs for portablecommunication”

For original paper see ibid., vol 83, p. 544-69 (April 1995). Shows that the synchronous oscillator (SO) can provide a fractional bandwidth of 0.001% or even lower percentage of tunable filters at 100 MHz. This percentage is even provided at 560 MHz or higher frequencies     

Comments on “High frequency performance of multilayercapacitors” [and reply]

For the original paper see ibid., vol.43, no.9, p.2007-15 (1995). The commenters state that are pleased to see this addition to the analysis of high-frequency (HF) capacitors as given in the aforementioned paper. They go on to discuss various points which have arisen in the analysis owing to the use of the transmission-line model. In reply the author clarifies several of the aspects considered     

Reply to 'Comment on "Enlarged cells for the conformal FDTD method to avoid the time step reduction"'

For original article by T. Xiao and Q.H. Liu see ibid., vol.14, no.12, p.551-3, Dec. 2004. For comments by R. Schuhmann, I.A. Zagorodnov and T. Weiland see ibid., vol.16, no.1, p.55, Jan. 2006.     

Author's Reply

For original article by D'Amico, V. Gianini, and A. Baschirotto, see ibid., vol. 41, no. 7, p. 1630-37, Jul. 2006. For comments by P. V. Ananda see ibid. vol. 42, no. 2, February 2007     

Third response to comments by M.J. Neatrour on Maxwell's equations

For original papers by Harmuth see ibid., vol.28, no.4, p.250, p.259, p.267 (1986). For Neatrour's article see ibid., vol.29, no.3, p.258 (1987). The question of whether the authors' previous modification of Maxwell's equations adds anything new to physics is addressed. Several plots of electric field strength under various conditions are presented, of which the authors claim about half could not have been derived from Maxwell's original equations. Since they claim these plots are accurate, the modified equations do, indeed, add something to physics     

Comments on “TOA Estimation for IR-UWB Systems With Different Transceiver Types”

For original article by I. Guvenc, Z. Sahinoglu and P.V. Orlik, see ibid., vol.54, no.6, p.1876-86, June 2006     

A correction to Kurt Metzger's algorithm in the paper “On theprobability density of intersymbol interference”

For original work see ibid., vol.35, p.396 (1987). In this letter, using an operator approach, Metzger's algorithm for pdf computation is shown to be in error, and a correction is given     

Comments on “A 4th-Order Active- Gm-RC Reconfigurable (UMTS/WLAN) Filter”

For original paper by S. D'Amico, V. Gianini, and A. Baschirotto, see ibid., vol. 41, no. 7, p. 1630-37, Jul. 2006